Archive of Our Own ^beta

Chapter Text

Denki isn't sure how he started hooking up with Bakugou Katsuki of all people.

He isn't even really sure how he ended up getting Katsuki to accept that they were even friends in the first place. Maybe it happened in the weeks of Denki and his friends sitting by his side during lunch because they thought he was cool, or maybe it was during sparring when Katsuki first saw how formidable Denki's quirk could be with more training.

Now that the squad knows that Katsuki's just a big softie, the squad can tease him without fear of being burned or blown up. That means that Denki can really let loose with his teasing.

Over time, Denki's come to learn that Katsuki is actually really observant of other people—even if he pretends not to be. Denki often finds his favorite snacks or maybe a roll of bandages left outside his door after a particularly bad training session with Katsuki. And not the cheap stuff either. He conjectures that the guy cares about all of his friends, but is too emotionally constipated to show it like a normal person.

But none of this applies when it comes to Midoriya. Now that he and Katsuki have made up and become civil again, it's almost like they're conjoined at the hip. Katsuki even cooks for him in his own weird way of "I made too much, so you have to eat this unless you want it to go to waste." It's actually kind of sweet to watch Katsuki navigating the throes of friendship... if that's all he feels for Midoriya, anyway.

That's why it comes as a surprise when Katsuki makes a move on Denki.

It starts in the locker room after training. Denki's a little out of it because using his quirk leaves him kind of brain-dead, so he's making his daily trek to the showers like it's a motor program. He absolutely doesn't expect Katsuki to already be showering there because he usually waits until he's in the comfort of his room.

The sight of him naked makes Denki redden, reminding him that Katsuki's always been gorgeous. Just because he acts like a complete goblin on the daily doesn't mean that he can't look like he was sculpted by the gods.

"Hey, dude," Denki says, just to break the silence, "didn't expect to see you here."

"... Dunce face."

Denki starts to scrub himself down, taking in the scent of his Old Spice Dragonblast body wash mingling with Katsuki's softer lavender lather. He briefly wonders if Katsuki uses it because he likes the smell, or because of how lavender supposedly has relaxing benefits.

At any rate, Denki's lost in his head until he realizes that Katsuki's full-on staring at him. He wonders how he somehow managed to ignore those piercing crimson eyes.

Denki blinks owlishly and catches Katsuki's gaze. "You good?"

"Huh? I'm fine. What're you even talking about?" Katsuki scowls, maybe mad at being caught.

"Whatever you say, man." Denki decides that he's too tired to deal with Katsuki's bullshit today. That doesn't erase the goosebumps erupting at the feeling of Katsuki's eyes on him.

"I—...," Katsuki begins, but cuts himself off. Denki just stares back, ignoring how stifling the steam is becoming (and how they're both still completely naked). "I was just... wondering... what you thought of the girls. In our class."

"The girls?" Denki repeats. "What about them?"

"Like... if you'd ever want to fuckin' date one of 'em."

Now, Denki's convinced that he's in an alternate dimension. No way is Katsuki suddenly thinking about dating girls—and talking to Denki about it.

"Well," Denki considers his words carefully, "I don't think I swing that way, so maybe you should talk to Ei about that. Or even Mina, I think."

For some reason, Denki expects an explosion. All he gets is another question. "Okay, so what do you think of the other guys? Would you...?"

Denki chuckles nervously. "Why?"

"I just—! Whatever, fuckface. I don't even know why I bothered asking—"

"I had a crush on Shoji for, like, two seconds because of his arms. And then Hanta for a little longer, but not anymore." And you, you dumb asshole, ever since we met.

Katsuki waits, as if he's expecting him to continue. Denki humors him.

"I think Midoriya's cute, but anyone with eyes can see that," Denki blurts out, testing the waters.

"You think Deku's cute?" Katsuki sneers, but it sounds almost... insincere. As if he agrees with Denki's opinion.

"Fuck, yeah I do. He's really grown up, hasn't he? You would know."

"But he's Deku," Katsuki mutters. "What is it about him?"

Denki grimaces. "You want me to be completely honest with you? I think his ass and thighs might be godsent. Also, I've always wondered how he sounds when he—... Never mind. Forget about it."

Katsuki's jaw drops a little. He doesn't say anything.

"Maybe don't tell Midoriya I low-key fantasize about him? Damn, talk about an awkward conversation," Denki laughs weakly, surveying Katsuki's blank expression.

After what feels like years, Katsuki finally mutters, "I won't. Is there anyone else?"

"Well..." Denki accidentally drops his gaze down to Katsuki's dick and suddenly doesn't remember what he was going to say next because his mind starts to go crazy with want. He forces himself to look back up at Katsuki's face.

But Katsuki takes a step closer. "... Have you ever kissed anyone, Kami?"

Denki briefly thinks of mentioning his old fuckbuddy from Year 1, but decides against it. "Yeah, I have. Have you?"

"Mm, what do you think?" Katsuki starts to walk closer, and Denki's whole body takes a screenshot.

"Didn't think you were that kind of guy, to be honest."

"I wasn't. But I want to be, y'know?" Katsuki licks his bottom lip. "Do you want to... help me learn?"

"Yes," Denki breathes out, wondering if he's dreaming. When he feels one of Katsuki's warm hands on his waist and another cupping the side of his face, he realizes that he doesn't want anything more.

Their kiss is chaste—even though they're naked—and Katsuki's soft lips feel really nice on his. Denki decides to deepen the kiss, slipping his tongue into Katsuki's mouth and pressing his more muscular body into the wet shower wall.

Almost hesitantly, Katsuki aligns their dicks together and brushes against him, letting out the hottest moan Denki's ever heard.

Katsuki breaks away for air. "Fuck, Kami, where'd you learn to kiss like that—" He doesn't finish his thought before Denki captures his mouth again, grinding up against him. "Fuck, ah—!"

If Denki's ever thought about what Katsuki would be like in bed, he never imagined how vocal he'd be. It lights a fire in Denki's dick.

"You wanna keep rubbing on me, Kats? Seems like you're already almost there," Denki smirks, bringing one hand up to thumb at a peaked nipple. That draws out a low groan and more feverish grinding.

"Can I?" Katsuki breathes, uncharacteristically asking for permission.

"Yeah, fuck—you're so hot," Denki mutters. He dips lower to suck at Katsuki's sharp jawline and the tanned column of his neck. One of Katsuki's hands comes up to tangle into Denki's hair as Denki sucks at a nipple to make Katsuki moan even louder.

"Close," Katsuki grits out, tugging harshly at Denki's hair. "Can you touch me?"

"Yeah—yeah, fuck—," Denki pulls back slightly to spit on his fingers and pump Katsuki's pretty cock. "God, I was just thinking about how gorgeous you are."

At that, Katsuki lets out a sound that's nearly a whine. "Kami, you can't just say that while—ah, fuck—!"

Katsuki finishes all over Denki's hand, heaving, and Denki grinds up against his spent, dripping cock until he's adding to the mess in spurts. He's grateful that Katsuki endured the oversensitivity long enough for Denki to finish, too.

Denki drags both of them back under one shower head and rinses Katsuki off with the lavender wash, making sure to be gentle with his sensitive areas.

"Was that okay?" Denki asks, thumbing at the hickeys he left on Katsuki's neck and chest. "I know that wasn't what you were asking for originally."

"God, that was so fucking good. You're—," Katsuki cuts himself off, a blush settling high on his cheeks, "Whatever. Do you want to maybe... do it again some other time?" He passes Denki a towel.

Denki pauses, surprised. "You want this to be a thing?"

"You don't?" Katsuki challenges, an eyebrow raised. But that doesn't fool Denki; he knows firsthand how nerve-racking it can be to proposition someone, especially a close friend.

"Didn't say that... I was just surprised you want to do more with me. I'm not complaining, though—that was hot as shit. You—Kats, you're—," everything, "you'd make a good fuckbuddy. I just need to teach you a few things before it's smooth sailing."

"Good deal. You wanna get food before going back to the dorms?"

"Thought you'd never ask."

Denki isn't quite sure he'll survive this arrangement, but there's only one way to find out.

Chapter Text

The next time Denki and Katsuki hook up, it's in Katsuki's bedroom on a slow weekend rather than in an old locker room after training.

Before it happens, Denki feels Katsuki's eyes on him constantly—as if there's a question on the tip of his tongue that he can't quite manage to ask. Denki can tell that Katsuki wants more from him but doesn't know how to swallow his pride, waiting for Denki to come to him instead.

Denki almost starts to wonder how long it'll take, but it's only a couple of days before Katsuki decides to bite the bullet. The two of them are alone in the kitchen, with Katsuki cooking himself dinner and Denki foraging for snacks.

Denki nearly jumps at the sound of Katsuki's low voice in his ear. "Hey, Pikachu... You aren't avoiding me, are you?"

"Huh?" Denki says smartly.

"I just—we haven't talked since the fucking locker room..." Katsuki trails off, hoping that Denki would take him out of the misery of talking about his feelings.

"Dude, I wasn't trying to avoid you at all, I swear." Denki comes a little closer, hesitantly placing a hand on Katsuki's thigh. "All I've been thinking about is how I want to do more with you."

Katsuki exhales slowly. "Oh. Sweet."

"Uh-huh. Do you feel the same way, or...?"

"Fuck, yeah. Is now a good time for you?"

"... Dude, you have something on the stove."

Katsuki scowls. "I can fucking turn it off, bitch. Kill yourself."

That makes Denki chuckle, looping an arm around Katsuki. He leans in close, lips nearly pressed to Katsuki's ear, "Then turn it off right fucking now if you want my mouth on your dick, Kats. I'll meet you in your room."

The way Katsuki shivers goes straight to Denki's head (both of them). He picks up his snacks and does a 180 out of the kitchen, now with purpose.

In the living room, he finds Midoriya, Uraraka, Iida, and Asui in a Mario Kart match turned physical. Midoriya has Iida pinned flat on the couch, wrestling him down with all the force his smaller body can muster. Uraraka and Asui watch with interest, but don't make any moves to intervene.

"Mario Kart's getting freaky, huh?" Denki comments offhandedly, wondering if he'll ever live to see the day Midoriya has his thighs wrapped around him the way he's straddling Iida right now.

"Freaky?" Midoriya repeats, eyes widening. He looks back down at Iida and then at himself before suddenly throwing himself off and onto the couch. "Noo, Kami, it's not what it looks like," he whines, hands clasped in prayer. "... Don't tell Kacchan."

"Don't tell Kacchan what?" A gruff voice says behind Denki, and nearly everyone jumps in surprise.

"Kacchan!" Midoriya yelps, "We were just—um, playing Mario Kart, and then Tenya banana-peeled me, like, 30 times, and then I ended up getting second-to-last place, which is absolutely insane because I was literally locked in the whole time while Tsu and 'Chaco were busy yapping about—!"

"Whatever, shitty nerd. Kami, let's go." He drags Denki toward the elevators, not noticing the pair of big, green eyes following them until they're out of sight.

As soon as they're out of earshot, Denki erupts. "Dude, you should've seen Mido sitting on Iida—that shit was—!"

"I saw," Katsuki says through gritted teeth. "Fuck."

"'Fuck' is right. God, his ass..."

Katsuki sits down hard on his bed and puts his face in his hands. "But it's Deku. Deku's not hot, he's a dumb nerd with a death wish. Fuck!"

"Can't he be both?" Denki muses, observing Katsuki's crisis curiously.

Katsuki groans into his hands. "When did Deku get hot? You'd think I'd notice shit like that!" Before Denki gets a chance to respond, Katsuki tugs him closer. "Hey. Kiss me again."

"Ask me nicely," Denki commands, gripping Katsuki's waist from his position at the edge of his bed. He kind of expects an outburst at his request, but Katsuki surprises him.

Katsuki's lips part a little. "Kami—... Denki... will you teach me how to be a better kisser?" He looks at Denki earnestly—or however earnest Katsuki can look with that semi-permanent scowl—and waits patiently for a response.

Denki nearly gets whiplash at the want in Katsuki's eyes. "Damn," he says quietly. "You can have whatever you want from me if you look at me like that. Come 'ere, Kats."

Katsuki shifts closer, pursing his lips. "Don't make fun of me, you fucker."

"I was being dead serious."

Katsuki studies Denki a little and then decides that he doesn't want to push further. "Teach me."

"Okay," Denki exhales, "rule number one of kissing—start out slow. Take your time getting to know the other person." As if to demonstrate, he places a hand on Katsuki's firm chest and leans in. "Be patient." Denki lands a soft kiss at the corner of Katsuki's lips and then another square on his mouth. "You don't have to use tongue right way."

Katsuki assents into Denki's mouth, eyes already hazy. "What if I want it?"

Denki indulges him. He cups Katsuki's chiseled face and slips his tongue in, exploring for a few seconds before pulling back completely. "Another tip is to get your whole body involved for extra passion. Y'know, going plus ultra 'n shit." One hand finds Katsuki's nipple through his shirt and flicks gently, drawing out a moan.

"Oh, fuck you," Katsuki complains half-heartedly, licking back into Denki's mouth. He places a hand on Denki's lower back, a gentle pressure that makes Denki feel hot inside.

"I guess you're just sensitive," Denki replies. "Another tip: praise. But not everyone's into that."

Katsuki grunts into Denki's mouth. His hand moves from Denki's lower back, caressing all the way to Denki's chest to replicate the touches.

"Fuck, Kats, you're such a fast learner," Denki says, following his own advice. "And your tits—"

"My what?"

Denki laughs but doesn't explain further. Instead, he drops his hand into Katsuki's lap to distract him.

"Shit," Denki swears, "you're hard as a goddamn rock."

"Mm, what're you gonna do about it?" Katsuki places his hand over Denki's and presses while grinding up into the touch. "Come to think of it, you mentioned something about your mouth..."

"Hey, be patient. Foreplay's important." Denki tugs Katsuki's dick out of his pants and palms it while kissing back into his mouth. The noises Katsuki releases are unholy—he's literally going to make Denki's dick fall off. "Wait. How often do you usually get yourself off?"

"Uh... Not often," Katsuki says shiftily.

"What does that mean?" Denki pries.

"My quirk—... I don't want to accidentally, uh, damage anything if I lose control."

"So you don't?"

"Nope."

Denki breathes in sharply. Fuck, that's hot. "You must be hella pent up, dude."

"You have no idea," Katsuki mutters. "Have you ever, y'know, shocked yourself when you...?"

"Not when I was on my own. But when I was with someone else, on the other hand... It was fun sometimes." Denki recalls an instance with his ex-fuckbuddy when the guy had fucked him so hard he lost control when he reached orgasm and electrocuted both of them. The guy had come on the spot...

Katsuki doesn't question him further, focusing instead on devouring Denki's throat like a vampire.

"Fuck, dude, people are gonna think I got mauled by a bear."

"Good," Katsuki growls. That heats Denki up, if he's being honest. He shoves Katsuki back gently and drops to his knees on the floor, face level with Katsuki's drooling cock.

"You're big," Denki comments offhandedly before laving his tongue over the head. He sees Katsuki's hands fist the covers. "Pretty." Katsuki moans weakly when Denki finally stretches the wet heat of his mouth over him. When Katsuki bucks up, Denki pulls all the way off just to be mean. "Hey, just because I don't have a gag reflex—," Denki cuts himself when he notices tears sparkling in Katsuki's waterline.

"Please—please, Denki," Katsuki grits out, his hands cupping either side of Denki's face. "I'm sorry, please—I'm sorry, it feels so good."

Denki tries to be understanding; he can't even imagine not being able to jerk off whenever he gets the whim. "It's okay, babe, I was just being mean. You're fine." He sucks Katsuki's dick back into his mouth in apology, tonguing at the underside in an effort to make him cry for real.

Katsuki quite literally vibrates with the effort of not moving around to avoid making Denki mad again. "Promise?"

Denki doesn't reply in favor of taking Katsuki deep into his throat. Katsuki lets out a cry, the loudest sound he's made in the entire time Denki's been playing with him.

"Ah—ah, Denki, don't stop—!"

Denki wouldn't even dream of it. He's grateful just for the chance to get Katsuki to make those gorgeous sounds. His hands move to Katsuki's ass, groping him to get him to fuck into Denki's mouth.

Thankfully, Katsuki takes the hint and starts fucking Denki's throat like he wanted. From there, it doesn't take long to make Katsuki finish deep into Denki's throat. He pulls back and tugs Denki back into bed while he catches his breath.

"... Thanks," Katsuki mumbles.

Denki clears his raspy throat. "No prob. Now it's your turn to return the favor."

"What?" Katsuki blurts, eyes widening. He looks like he thinks Denki's joking (he's absolutely not).

"Yeah. Get down for me."

Bewildered, Katsuki kneels down and looks up at Denki. "But I don't know how."

"Didn't I just teach you how to drive a guy crazy with your mouth? Go on, Number 1, suck my cock."

Katsuki blinks and leans in a little closer, surveying Denki's dick. "Smaller than mine."

"Fuck you."

Denki waits patiently as Katsuki gets accustomed to his dick. He feels warm fingers trace the raised surface of his one prominent vein and then come up to swipe off the precum pearling at his tip.

"... 'S not too different from mine, I guess. Can't be that hard—y'know, because I'm good at everything."

"Whatever you say, Blasty," Denki smirks. But that smirk dies quickly when he feels Katsuki's warm tongue press to the underside of his tip. His lips close over the whole head and start suctioning like it's a straw. "Oh, shit—!"

Denki can quite literally feel Katsuki's mouth stretch into an evil grin as he pulls back. "Plus ultra!" he says, visibly proud of having drawn noise out of Denki that quickly.

"Yeah, yeah, suck my goddamn dick, Kacchan," Denki says fondly, but he feels Katsuki freeze in his place at Denki's feet. "What's wrong?"

"Don't call me that fucking nickname," Katsuki snarls, suddenly furious, "especially not while we're—..."

"I get it," Denki breathes. "It's because Midoriya calls you that."

"No—!" Katsuki tries to reason, but Denki won't let him.

"Fine, if not. But if that's the real reason, makes me wonder how he would react to the sight of us together—when we're helping each other out, I mean. You just know he'd turn so red, dude."

"... He'd blush so bad," Katsuki stiffly offers, still skeptical of talking about Izuku.

"I wonder what would happen if he were in my position right now. I bet he would squirm real bad at the feeling of your hot mouth around him. I wonder if he touches himself—."

"Fucking stop," Katsuki hisses. "If you're gonna say all this filthy shit, you're gonna have to be prepared to get me off again, you little demon."

"Oh, I am." Denki grabs for Katsuki's neck and feeds his cock into his mouth. "So good with your mouth even though it's your first time, Kats."

Katsuki kind of preens at that, picking up the pace of his tongue. He attempts to take Denki deeper, but he chokes and pulls back. Instead, he takes half of the length in his mouth and sucks gently, staring balefully up at Denki.

To no one's surprise, Denki's a motormouth throughout the whole process. "Holy fucking shit—ah, Katsuki—!" Katsuki revels in the praise and tries even harder. "So fucking good for me, baby, fuck!"

Katsuki tries again to deepthroat and succeeds, massaging Denki's cock. He moans at the victory, sending vibrations through his throat.

"Imagine doing that to Mido. He'd cry," Denki says, just to gauge Katsuki's reaction. He expects anger. What he doesn't expect is for Katsuki to start rubbing himself from his kneeling position on the floor. He groans around Denki's cock, getting sloppy with his mouth.

"Wonder if—fuck—wonder if he's ever been blown before. Or given head. I'd pay good money to see Mido with his mouth stretched around a fat cock. He'd finally stop running his damn mouth—."

Katsuki pulls off all the way. "You should learn to shut the fuck up," he growls, gripping Denki's thigh so hard it'll leave a bruise.

"Hm, no thanks," Denki responds shakily. He shoves Katsuki back onto his dick by his spiky blond hair and realizes that he's close. "Kats—!"

Katsuki takes him in deep one last time and Denki comes right down his throat in spurts.

"... Doesn't taste as bad as I thought it would," Katsuki muses hoarsely after a few moments.

"Don't tell me you've never tasted yours."

"I haven't."

Denki pulls him in for another round of making out, tasting himself. Katsuki reels in shock before finally settling in. "Damn, I do taste good. It's definitely because of all the pineapple I've been eating from Satou's fruit cake kick."

"Stop running your damn mouth and get me off again, you stupid asshole."

Denki chuckles. "Yes, daddy."

"Eugh, that's so cringe—never say that shit again," Katsuki says, eyes squeezed shut in disgust. "Touch me, you goddamned son of a bitch."

"The mouth on this guy," Denki whistles. But he indulges him anyway, pumping Katsuki into oversensitivity even after cum covers his hand. Just to test the waters, Denki slips two cum-covered fingers into Katsuki's mouth and Katsuki tastes himself in his post-orgasm haze. "What do you think?"

"... I'm going to eat more pineapple from now on."

"And oranges," Denki says helpfully.

Katsuki collapses back onto his bed, dragging Denki with him so that Denki's lying on his chest. "That was really good."

"Yeah," Denki agrees, ear pressed to Katsuki's chest to hear the slowing of his heartbeat as he comes down from the haze.

"You wanna crash here?"

"Fuck yeah, dude."

Katsuki cuddles Denki into his side. "... You think about Deku like that a lot?"

"Like how he'd be during sex?"

"Uh-huh."

"... Yeah, if I'm being completely honest. I know it's weird, it's just—fuck, he's so hot."

"You think he'd ever be down to mess around with us?" 

Denki breathes out, surprised at the sudden question. "Y'know, I'm not sure." He feels Katsuki deflate a little and wraps his arms around Katsuki more firmly. "But we could always find out?"

"Huh?"

"We could—I don't know—make a few subtle moves to get a feel for if he's interested?"

"Mm, yeah. You should."

"Dude, no, it has to be both of us or neither of us. Grow a pair."

Katsuki growls into Denki's neck. "Too risky."

"High risk, high reward..."

"Sometimes, I—I think about him like that, too," Katsuki confesses, gripping Denki's slim wrist. "I think about Deku while I—..."

"All that shows is that you have good taste," Denki smiles, lopsided. "Commencing Operation: Fuck Deku?"

Katsuki lets out a laugh at that, pulling Denki closer. "You're awful... I'm in." He presses a kiss to Denki's mouth just for the sake of it, keeping his tongue out of the way. "I wanna fuck you first, though," he mutters.

Denki would be lying if he said those words coming out of Katsuki's mouth didn't make him feel hot. "You trying to get me hard again?"

Katsuki just grins against his mouth, kissing him deeper. "Depends. Is it working?"

"Ah, I'm too sleepy to go again."

"That's too bad," Katsuki says. Denki believes him.

"Maybe tomorrow if we have time?"

"Maybe. I'm supposed to be training all day with Deku and All Might tomorrow."

"Oh? Have fun with that." Denki ghosts his breath over Katsuki's ear and the other boy shivers.

"Nah, Deku's a fucking menace—fights me like a street dog 'cause he knows I can take it. I'll be lucky to come out of it tomorrow with just bruises."

"Maybe I can give you stress relief head after?"

Katsuki snorts. "Yeah, if I don't have broken bones. Maybe I'd do better in training if seeing his ass in spandex didn't distract me so much."

"You're so right," Denki mumbles, already drifting off. "And so hot... Can't believe you sucked my dick. Can't believe... I'm the only person... whose dick you've sucked..."

Denki would keep running his mouth, but he's halfway asleep. The tender way Katsuki holds him isn't helping.

"G'night, stupid," Katsuki says fondly.

Denki doesn't respond, his face smushed into Katsuki's bicep. Katsuki kisses him on the forehead and drifts off soon after while cradling Denki in his arms.

Commencing Operation: Fuck Deku, huh?

Chapter Text

The next day, Katsuki leaves before Denki wakes up to head to training. Denki only notices when he feels a significant loss of warmth wrapped around him at 5:00 in the morning, and he'd be lying if he said he didn't want Katsuki to slip back into bed with him.

Sunday's a slow day for Denki; he never schedules training on weekends and he usually procrastinates his homework until the day it's due. He has an English test coming up, but that can wait. Maybe he can even get Katsuki to help him study for it...

The urge to stay in Katsuki's still-warm bed wins out and Denki drifts back off under the covers.

-

Denki wakes up to the sound of the shower running. He turns on his side to pick up his phone, realizing that he'd slept the entire day away and that Katsuki's definitely back from training.

Pulling on his shorts, Denki's drawn to Katsuki's bathroom like a moth to a light. He cracks open the door and some steam wafts out.

"Morning, sleeping beauty," Katsuki says mockingly from the shower, "come on in. Been waiting for you to wake up."

Denki groans internally at the sight of Katsuki lathered up in the shower. At least this time, he's allowed to look. "How did training go?"

"Almost killed Deku like usual, but he fought me hard. Get in here with me."

Denki's no stranger to shower sex, but he'd like to brush his teeth first. "Rain check for, like, two minutes. Got any spare toothbrushes?"

"Last drawer."

Denki brushes his teeth and Katsuki watches him do it. The whole scene is unsettlingly domestic.

After Denki gets naked and hops in the shower, he sees that Katsuki's already half hard. "Did I do that?" Denki says, pointing smugly. "Didn't know brushing my teeth was such a turn-on."

Katsuki rolls his eyes, but a flush rises to his cheeks. "... Made me think about your mouth on me last night."

Denki goes kind of dumb at that, matching Katsuki's redness. "I gave you head once and now you're addicted," he says, just to tease, but he doesn't expect Katsuki pull him flush to his front, their dicks grinding together. The slide is eased by Katsuki's soap, and Denki's erection comes to life. "Fuck, Kats—," he whines as Katsuki presses his face into Denki's jaw and starts to suck.

"I was thinking about you during training today," Katsuki says in a low voice. "Made me want to hurry back—I even passed up Deku's offer to get dinner together."

"I have to do a really good job then, don't I?" Denki mutters, a bit stifled by the heavy blanket of shower steam around them. He grinds into Katsuki harder until he feels a firm grip on his waist that stops his movement.

"This won't take long," Katsuki admits with a grimace. "Deku really got me going today. It's like the little fucker has no idea how he looks in that hero suit."

"Guess it's up to me to make it last long, then," Denki says, suddenly cheered up. He drops to his knees before Katsuki can ask him what he means.

Denki gets his mouth on it, lets Katsuki fuck his throat a little, but only until he gets sporadic and sloppy with his thrusts. Then, he pulls off completely for breath while Katsuki throws a mini tantrum. "You asshole," Katsuki complains. "That was so shitty of you."

"Don't worry, babe—it'll pay off." Denki goes back down on Katsuki, one of his own hands coming down to squeeze his own stiff erection.

Katsuki groans lowly when Denki pulls off completely a second time after he got close. "Fuck you."

Denki suddenly takes Katsuki so far down his throat that his nose is pressed to the trimmed patch of blond hair above his dick and pulls off. "I won't do it again. You can come."

Katsuki eyes him cautiously. Denki stays true to his word and jerks Katsuki off right onto his face, ropes of cum landing across his waiting tongue. The show he makes of cleaning off the corners of his mouth with his tongue combined with the post-nut haze has Katsuki transfixed.

Denki stands up on shaky legs and Katsuki helps him rinse his face off before kissing him deeply, tongue exploring for a taste of himself. "You're literally the devil," Katsuki mutters against Denki's lips, smirking when Denki moans into his mouth.

"Don't tell me that—I'll come," Denki warns him jokingly, but Katsuki seems to take it as a challenge. He rolls his muscled thigh against Denki's dick for him to rut against while they make out.

Denki's hands come up to tug on Katsuki's dripping hair as he gets closer. Katsuki swallows all of the sounds Denki lets out into his mouth with one hand gripping Denki's waist. "Fuck, you're so hot," Katsuki mutters quietly at the sight of Denki riding his thigh.

"Close," Denki says softly, yipping when Katsuki sucks on a particularly sensitive spot behind his ear. "F—ah!" He blinks dumbly when Katsuki jerks his leg away so that Denki wouldn't be able to grind against him. "You absolute fucker."

"Just giving you a taste of your own medicine," Katsuki says, smirking cockily. He presses his lips to Denki's ear and whispers, "Want me to do it again?"

Fuck. Denki just might've created a monster.

"No—be nice," Denki pleads, grinding forward onto Katsuki's thigh. He barely even notices Katsuki redirecting the shower head so that the water doesn't wash away the pre-cum Denki leaks onto him.

"Deku's a pillow princess, but you? You're a brat, through and through." Katsuki says this while rolling Denki by the hips onto his thigh. "I think you want me to be mean to you."

Denki thinks he's being sneaky by not giving up any tells that he's close, but he shouldn't have underestimated Katsuki; every time he's on the verge, Katsuki pulls back from him. This happens three times before Denki finds it in him to start begging.

"Fuck—please, please let me—," Denki chokes out, hanging his head on Katsuki's shoulder.

Katsuki gives a huff, but Denki misses the enamored glint in his eye. "Fine, go on." It doesn't take long at all for Denki to finish all over Katsuki's thigh, ribbons running down his leg. His chest heaves as he tries to catch his breath, but Katsuki pushes him to his knees. "Now lick it up for me."

Another spike of arousal stabs through Denki, unwanted so soon after his orgasm, but he follows directions and laps up his own release from Katsuki's thigh. Denki almost wonders if Katsuki would get it up at the sight of him.

The question gets answered before he even gets the chance to ask it. "Wish I could go again, but training took a lot out of me..." Katsuki mumbles, gazing down reverently at him.

"That's okay," Denki says as he gets pulled to his knees. "Lowkey, I'm tired too."

"How? You literally slept all day," Katsuki jabs, lathering some shampoo into his hands and rubbing it into Denki's hair.

Denki doesn't reply in favor of savoring the feeling of Katsuki's hands massaging his scalp.

"You really like that, huh?"

"'S nice." Denki nods lightly. "You know, you're gonna wreck Midoriya."

"Huh?"

"Even though you'd never done anything like this before, you're a pretty fast learner. Wonder what Midoriya would have to say after you use those skills on him."

"I think it's a lost cause," Katsuki mutters, looking away. "We don't even know if he's into guys. Into us."

"But we could always find out," Denki presses, "just by dropping hints. We can keep talking hypotheticals all we want, but I think there's a chance for us to get the real thing."

"What do you mean by 'drop hints'?"

"I don't know... being more touchy with him? More affectionate? Inviting him out with us or just hanging out together in one of our rooms? Without sex, I mean."

"... That could actually fucking work," Katsuki muses, deep in thought.

"You think so?"

"I do. Now, let's get out of the shower before we start fucking pruning, you dumbass."

"Good idea!"

Maybe Denki's wishful thinking has inspired something in Katsuki after all.

-

Or maybe Denki should've explained what kinds of hints they could drop to Katsuki better, because he's more than a little surprised when Katsuki wrestles Izuku into his lap during movie night.

"Shitty fucking nerd," Katsuki had growled, "You fucked your back up during training today, so you shouldn't be sitting up. Stupid idiot." And then he had pulled Izuku's head into his lap to make him horizontal.

The balls on that guy.

Denki looks at his other friends. They're eyeing the pair oddly, but more in curiosity than disgust. At least that's good, right?

Katsuki and Izuku both fall asleep almost immediately, and if that doesn't say anything about how much closer they've gotten since the war, he doesn't know what else could. He's glad that they're so comfortable with each other. He just wishes that maybe one day they could be so comfortable with him, too.

They're both still asleep when the movie ends and the others start to clear out. That means that it's up to Denki to get the boys to their beds.

He gives himself the privilege just looking at them before all the hard work starts. Katsuki looks like an angel when he's asleep because his scowl and that little furrow between his eyebrows are missing. He almost looks like a normal guy, if not for his model-like face.

At the risk of sounding like a creep, Denki thinks it's nice to watch Izuku sleep. Izuku works so hard every day, and it's comforting to know, as someone who cares about Izuku, that he's resting. Denki hadn't been very happy to hear that Izuku had injured his back during training, but it comes with the territory.

He decides to focus on Izuku first, only because he's sleeping on top of Katsuki. Denki knows that he and Izuku weigh around the same even though Izuku's much shorter because of all that compact muscle. Even still, he carefully picks Izuku up off of Katsuki, reeling in surprise at how easily he's able to carry him, and takes him in his arms to the elevators. He nearly melts when Izuku huffs softly in his sleep and tucks his face into Denki's neck, warm breaths tickling Denki's skin.

Denki wonders randomly if he's delusional for thinking that Izuku would ever mess around with him and Katsuki. The thought makes his gut churn uncomfortably.

He looks down at Izuku in bed, covers pulled over his body, and feels a sudden urge to kiss Izuku's forehead. Leaning forward close enough to smell Izuku's mint-scented shampoo, he presses a soft kiss to the sleeping boy's temple. Then, he makes his way out with a quiet, "Sleep well, Mido."

Now it's time to take Katsuki to bed. Denki takes the elevator back down to the living area and finds Katsuki still sleeping, albeit fitfully from the loss of the warm body he was cuddling. He gently shakes Katsuki's shoulder, knowing full well that he has no hope of carrying the heavier boy to his room. "Wake up, big guy. Come to bed with me."

Katsuki mumbles in his sleep, shifts around and curls up on the couch. He has no business looking so inviting—Denki's close to just falling asleep with him. The only thing preventing him from doing so is the thought of being discovered by the others in the morning.

In a stroke of genius, he starts to rub Katsuki's back and whispers, "If you get up right now, we can cuddle in my bed..."

As expected, Katsuki stirs and glares at Denki halfheartedly. "Did you already put Deku to bed?"

"Yeah, I did. Speaking of... do you know if he's been eating like normal? When I picked him up—I don't know, he felt... brittle."

"... Come to think of it, he seemed kind of sluggish during training today. Maybe I should force-feed the shitty brat some breakfast tomorrow before he goes on his run."

"Don't call him shitty," Denki says between laughs. He'd pay real money to see their friends' reactions when Katsuki decides to pull his little stunt. "Now, it's two in the goddamn morning. Come to bed with me, Kats."

"Fine," Katsuki scowls, but the expression looks insincere. He takes a quick look around to make sure there aren't any bystanders before capturing Denki's mouth. The suddenness catches Denki by surprise, but he's quick on the uptake—he licks back into Katsuki's mouth and grips his waist. They make their way to Denki's room, stealing kisses in the darkness of the hallway.

What they don't notice is a pair of big green eyes peeking out from the kitchen, now wide awake with shock at his accidental late-night discovery.

Chapter Text

The next morning, Katsuki's up first again. He drags a half-asleep Denki to the shower and gives him head so good he's squealing. After Denki returns the favor on his knees, they head down to the kitchen together and Katsuki gets to work on breakfast.

Denki sits at the counter and keeps Katsuki company. "Need any help, dude?"

"Only thing I need from you is for you to keep your ass in that seat, got it?"

"Fuck, okay," Denki snorts. "Whatcha making?"

Katsuki lowers his voice considerably; Denki didn't even know he could do that. "The nerd likes pancakes, so I'm using this protein box mix I stole from Kiri's room. It's blueberry-flavored."

He stole—whatever. Denki doesn't dwell on it. "He likes blueberries?"

"Yeah, big time. I remember this one time when we were brats, he—... Deku. You look like shit."

Denki whips around and sees a groggy, disheveled Izuku stalling in the doorway of the kitchen. "Oh... hi, you guys," he says softly. "How did you sleep?"

"I don't know about Dunce Face over there, but I slept amazingly," Katsuki declares loudly.

Wow, way to overcompensate. "I slept okay, Mido. How about you?" Denki asks, beckoning him over.

"Um—it was fine, I guess." Izuku surprisingly doesn't comment any further. He fiddles with the hem of his shirt and looks like he's lost deep in thought.

"Sit your ass down, nerd. It's a rest day," Katsuki grouches, expertly flipping a pancake without a spatula.

"But I was going to go on a run," Izuku says, frowning. "I need to build up my stamina so that—."

"Can't 'build stamina' if you're a husk. At least eat something and then go," Katsuki says firmly, setting down a stack of pancakes on the counter next to the spot where Denki's sitting.

Izuku opens his mouth to argue, but any defense he had thought of ultimately dies. "... Okay, Kacchan. Thank you."

"C'mere, Mido," Denki says. He pats the spot next to him. "Blasty made you this sexy plate of pancakes. Grab some syrup."

As Katsuki grumbles about how he didn't make shit for no one, Izuku hesitates and rubs his stomach. "Actually... I really, really appreciate it, Kacchan, it's just—I started a new diet, and—"

"Sit your ass down right fucking now, 'Zuku, I'm not going to repeat myself. You really want me to ask All Might what he thinks of your new 'diet'?" Katsuki barks, pointing at the counter. "Sit, now."

Izuku's eyes widen and he finally makes his way over to the counter. Katsuki turns off the stove and watches expectantly as Izuku takes his first bite and moans. Denki and Katsuki freeze in place as Izuku starts to dig in. "Oh my gosh, these are too good," Izuku mumbles around a mouthful, not even noticing the stunned silence.

It makes Denki glad to know that Izuku enjoys the food, but he can't really bring himself to be all too happy about how Izuku's eating like he hasn't had food in days. Experimentally, he places a hand on Izuku's knee and grips. "Are you sure you've been eating properly, dude?"

Izuku flushes red, and Denki's confused as to why, until he realizes that he's getting the other boy flustered at the touch. "I—... sorry, Kami, what?" Izuku mumbles weakly, avoiding eye contact.

"I asked," Denki says, leaning in closer, "if you've been taking care of yourself. Inquiring minds want to know, 'Zuku."

"Yeah—yeah, I always make sure to—," Izuku fumbles, blushing beet red, but Katsuki interrupts him.

"Always? Don't give me that bullshit. We haven't forgotten your little solo hero adventures from the war," Katsuki accuses, glaring hard. Denki almost thinks Katsuki's being too mean, too aggressive, because Izuku goes rigid under his touch. Katsuki takes a seat on the other side of Izuku and now, he's sandwiched between them. "If I see that happening again, I'll—I'll fuckin' tell Auntie that you aren't eating and she'll kick you out of UA. Now eat your fucking food. You're not going on that run if we have anything to say about it, right, Denki?"

Denki's grip accidentally slides up higher and now his hand is on Izuku's mid-thigh. "I'll be watching, too. We'll put a stop to it real quick, Izuku."

Izuku's eyes get glossy. "... Sorry. I—um, I'll be better about my eating habits." He wrings his hands, and it seems like he's trying hard to not look at the hand on his thigh.

"Good boy," Denki says as if he's just teasing—he's not—but Izuku twitches visibly. "Eat your food." He squeezes Izuku's thigh just once for good measure before letting go and digging into his own stack.

"Thanks, you guys," Izuku comments softly. He starts eating again, but much more slowly than before. "Kacchan, can I please go on my run? Only after finishing breakfast, I mean."

Katsuki thinks about it. "I think you should take a break for today. Hang out with me and Denki for a change, nerd."

"You really want me to hang out with you, Kacchan? With both of you?" Izuku says incredulously, as if he thinks Katsuki's playing a prank on him. That kind of makes Denki sad.

"Of course he does," Denki says, shooting Katsuki a glare. "We can play COD if you want? I have Advanced Warfare."

"If you're sure I can join," Izuku says, which kind of pisses Denki off.

"What do you mean by that?" Denki asks, eyes narrowing. "Why wouldn't you be able to join?"

Izuku looks like a deer in headlights. "Um—I don't know. Forget I said anything."

But Denki knows that Katsuki isn't letting this go without a fight. "If you don't explain yourself right fucking now—," Katsuki starts angrily, leaning in close.

"I saw you!" Izuku blurts out, but immediately covers his mouth with his hands.

Denki's stomach drops. More gently than Denki's ever seen him be, Katsuki tugs Izuku's hands away from his mouth and keeps them locked in his own. "What?"

To everyone's horror, Izuku starts to cry. "Y-yesterday after Denki helped me get to bed, I—I needed water, so I got up and went to the kitchen and I saw you two—um—kissing? And going to bed together? I hope—I hope you know that if you're keeping your relationship a secret because you're worried about what everyone will think, you shouldn't be, because—... Why are you two laughing at me?" Izuku cuts off, bemused. The tears continue to fall down his freckled cheeks.

"We aren't in a relationship, you little weirdo," Katsuki chuckles. "'S just a little fun, that's all—right, Denki?"

"Right." Denki wonders why his chest feels tight all of a sudden. "Started out in the locker room, like, a week ago."

Izuku sniffles miserably. "But—but I thought you guys were straight. I thought I was the only—..."

"You thought I was straight—?"

"You thought Denki was straight—?"

Katsuki and Denki look at each other and bust out into raucous laughter as Izuku tries to disappear.

"Izuku, Denki's every fruit in the fucking basket," Katsuki snorts, as if he knew a week ago that Denki was into dudes.

Izuku hides his red face in his hands. "But you? I didn't know you liked—..."

"Yeah, I like dick," Katsuki says loudly, which is exactly the moment Eijirou decides to enter the kitchen.

"Katsu likes dick?" Eijirou says, eyes wide. "Didn't see that coming."

"Ain't a big deal, Ei," Katsuki mutters, putting his empty plate into the sink for whoever's on dish duty. "Didn't even think about that shit till a week ago."

That makes Denki smile. "Maybe we should start being more open about 'that shit'. 'S not like there's anything wrong with it."

Eijirou gets a contemplative look on his face. "You guys down for game night tonight? Feels like we haven't hung out in a bit."

Before the war, their class used to have game nights every week. With everyone's busy schedules, it's been difficult for Class 3-A to schedule group hangouts. Denki didn't even realize how much he missed those. Even better, tomorrow's a national holiday and classes will be cancelled, making it the perfect night to go crazy.

"I can bring the alc," Denki offers graciously. A handle of Tito's has been sitting untouched in his room for months because he doesn't want to drink alone.

"I have bud, if anyone's down to roll with me tonight..." Katsuki says cautiously.

Izuku's jaw drops. "Kacchan, I didn't know you smoke."

"Again, ain't a big deal. Just forget I said anything if you're gonna be a narc about it—."

But Izuku hits him with, "Do you get your stuff from 'Toshi, too?"

Now it's everyone else's turn to go into shock.

"You smoke?" Katsuki says, like he's accusing Izuku of something even though he does the same thing.

"How do you think I deal with my anxiety?" Izuku mumbles. "I'm the same as you. I'll roll with you."

"I'm in, too," Denki says. He doesn't smoke much at all, but could afford a relaxer tonight. "You guys ever combine?"

"Alc and weed? I'm not tryna get fucked up, Denki," Katsuki scolds him. "Neither should you, 'Zuku."

"Okay, Kacchan."

"Ei, spread the word. I'm sure Mina has enough alc to go around. But it's probably Pink Whitney..." Denki says, trailing off.

"Dammit," Eijirou complains, hanging his head. "That shit always fucks me up."

Katsuki eyes him judgmentally. "Just don't drink as much, loser." He stands up from the counter. "I'm gonna go get a workout in. C'mon, Izuku."

"You want me to workout with you?" Izuku clarifies, eyes big.

"Well, how else can I keep an eye on you?"

"No one's making you—," Izuku says, looking a little hurt.

Denki interjects to help Katsuki out. "He just wants a workout buddy and you're one of the only people who can keep up with him. Right, babe?"

"Yeah, yeah, whatever." Katsuki rolls his eyes. Eijirou looks at them weirdly and Izuku seems even more hesitant.

"If you really want me," Izuku says softly.

"Finally. I'll see ya later, Ei... Nerd, get ready for the gym, and Denki, meet me in my room for a sec."

-

Denki expects a feelings talk, or even an angry rant about what a shit job Deku does of taking care of himself. What he doesn't expect is for Katsuki to push him up against a wall and start to kiss him all over.

"Uh—fuck, baby," Denki whines as Katsuki noses hotly into his jaw. He flinches when he feels a hand palming at his crotch. "You really think we got time for this?"

"I can be fast," Katsuki mutters, and Denki's already convinced.

"What's got you so worked up?"

"Shitty Deku, as per usual. God, he pisses me off." Katsuki gropes Denki's ass and pushes him onto the bed. "We literally just did stuff, I don't know why the fuck watching you tease him like that turns me on so much."

Denki thinks it makes sense for Katsuki to get randomly horny, considering how he doesn't jerk off that often. The only thing he's confused about is how Katsuki got so good so quickly at getting them both off.

Katsuki rolls his hips up into Denki's, grinding leisurely to get them to the finish line. He spits on his fingers and brings his hand down to their cocks rubbing together to ease the slide.

"Fuck fuck fuck," Denki chants, squirming against Katsuki's firm hand that's failing to keep him still. "S—ah—stop moving so fast, gonna—mmm!" The friction from the wet slide is going to drive him crazy.

"Can't stop," Katsuki bites out, angry tears brimming in his eyes from the exertion. His leg presses against Denki, keeping him trapped against Katsuki and the bed. "Please—just a little more, Denki, just let me—"

Katsuki adds to the slide in spurts and sighs contentedly. He lets Denki reach his own orgasm, trying hard to stay still despite the overstimulation. "God, that—that was really fucking good," Denki croons, and kisses Katsuki deeply. He whispers, "'Zuku's not ready for you."

Katsuki holds Denki tighter. "For us... Don't wanna go work out, Denki. Just wanna stay right here."

"Then stay with me, baby," Denki murmurs, a hand buried in Katsuki's spiky hair. He guides Katsuki's face into the cleft of his shoulder and sets a mental timer for five minutes. They could afford to relax for a bit.

-

Katsuki and Izuku are still gone when Denki and the others start setting up for their game night, but a quick text to Katsuki confirms that they'll be back in time.

They have a game of truth or dare planned, but nothing beyond that. Denki's busy setting up the bar when Katsuki and Izuku walk in together. Izuku looks slightly upset, no doubt due to something Katsuki must have said or done, but Denki doesn't address it. Instead, he hands Izuku a solo cup. "You look like you need a drink, dude. What can I get you?"

"Thanks for offering, Kami," Izuku says, trying for a smile that ultimately melts into a grimace. "Could you mix me a vodka cran with Tito's and an extra shot of Pink, please?"

"Coming right up, Mido," Denki says theatrically. He barely finds it in him to be surprised that Izuku's starting with such a strong drink. "How 'bout you, Kats?"

"I want a mocktail... Get me a Shirley Temple with a splash of cranberry juice," Katsuki says. His words sound almost clipped. "Don't drink too much if you want to smoke. Or do, I don't give a shit."

"Oh! That reminds me." Izuku shoots up from his chair. "I invited 'Toshi and he said he'd come."

Denki's stomach does a little turn at that. "Oh... that's nice, it'll be cool to see Shinsou again." If only Izuku knew the half of it...

Denki doesn't have a problem with Shinsou; he just doesn't feel like interacting with his ex-fuckbuddy from Year 1 all night. So sue him.

They'd ended things amicably, but only because Denki had wanted a relationship and Shinsou hadn't wanted him like that. It's not like Denki still likes the guy romantically or anything, he'd just rather not talk to him. And for whatever reason, he really doesn't want Katsuki to figure out that Denki and Shinsou used to hook up.

Denki matches Izuku's two shots, but uses only Pink Whitney and adds extra pink lemonade to dilute. Hopefully, Shinsou will steer clear of him tonight.

-

No dice.

All 20 students from class 3-A and Shinsou gather in a tight circle for a game of truth or dare and Denki finds himself sandwiched between Katsuki and Izuku, with Shinsou sitting on Izuku's other side. Nearly everyone's nursing a drink, which Denki thinks will help them loosen up a bit.

It's Mina's turn to ask a truth. She turns to Iida with an evil look in her eye, "Class pres—fuck, marry, kill Tsu, Ochako, and—... and Mido!"

Denki feels Katsuki and Izuku both stiffen up on either side of him. Izuku hides his face in his hands and groans in embarrassment. "You can always skip." The decided penalty for skipping out on your turn is a straight shot of Pink Whitney with no chaser.

"I think I've drank enough tonight," Iida mumbles. "Enough to answer the question, at least. Tsu's like a sister to me, so kill. Marry Ochako... fuck Izuku."

Everyone giggles and Denki can almost feel the heat radiating off of Izuku's face. "Tenya," Izuku whines, looking mortified. Denki hears Katsuki scoff with irritation.

Iida turns to Shinsou. "Truth or dare?"

"Truth," Shinsou says, taking a sip of his beer. He had said hello to Denki, but not much else. Someone from the circle calls out "Lame!" but Shinsou sticks to his guns.

Iida has a flush on his face from the alcohol, which has Denki feeling a little apprehensive. "Have you kissed anyone in the circle and who?"

Denki and Shinsou turn red at the same time. Denki's sure there's no way Shinsou would admit—

"I have," he says slowly, "only one person. Back in Year 1, when I was still in the General Studies course." The circle erupts into curious murmurs.

Eijirou asks, "Who?"

"Not sure if I should say," Shinsou stalls, trying to get a feel for whether Denki would be okay with revealing their past relationship without making it obvious who he's looking at.

Denki decides to man up and put Shinsou out of his misery. "It was me," he admits. "... Surprise."

Everyone looks at least a little shocked. Denki looks at Katsuki and finds him staring back with an unreadable expression on his face.

"I can't believe you never told me!" Mina says loudly. "That's such an insane secret, Denki!"

"I'm sorry, Mina," Denki groans, "I could never find the right time to bring it up."

Shinsou reaches over and claps Denki on the back. "It's all the past though—just forget it."

"Right," Denki mutters, trying hard not to look at Katsuki.

"Wait, I thought of a good dare. Izuku?" Shinsou says.

"Hit me," Izuku mumbles.

"I dare you to let Bakugou shotgun a hit into your mouth."

Izuku gapes. "Pass! You're so evil, 'Toshi."

"Nah, get over here, 'Zuku. We can give 'em a show," Katsuki says with a little smirk.

Izuku goes pink and starts to look a little lightheaded. "... O-okay, Kacchan." He crawls around Denki so that he can be on his knees in front of Katsuki.

Katsuki takes an unnecessarily long drag of the joint in his hand and cups Izuku's chin before slowly pressing his lips to Izuku's to breathe the smoke into his mouth without any leaks. Everyone clamors at the fortuitous kiss, but only Denki and Katsuki hear Izuku's breath hitch in surprise. Katsuki pulls back and studies Izuku's face. "How was that?"

"... Was good," Izuku says shyly, avoiding eye contact. But he presses himself between Katsuki and Denki and lays his head on Katsuki's shoulder.

"Your turn," Denki reminds him gently, ruffling his wild hair.

"Truth or dare, Denki?" Izuku asks.

"... Dare."

"I dare you to make out with Kacchan. Right here." Izuku doesn't move from his spot between Denki and Katsuki.

It's like everyone's holding their breath.

"Kats?" Denki says, like he's asking for permission. But Katsuki nearly grabs him by the throat, pulling him over Izuku and licking into his mouth in a way that's practiced by now. Denki barely notices that everyone's watching because Katsuki's kissing him like he's thirsty, like he's in a desert and Denki's an oasis.

Someone clears their throat and the spell breaks. No one says anything. "Holy shit," Eijirou murmurs.

"Thanks for the show, you three," Shinsou says to relieve the tension, a knowing smirk on his face.

Izuku's about as red as a firetruck, having had a front row seat to their little show. "You three?" he squeaks and Denki wraps an arm around him, leans in close to his ear, and mutters in a sudden surge of confidence—

"You wanna get out of here, 'Zuku? Kacchan and I can take real good care of you."

Izuku stares back at him with impossibly wide eyes, glancing quickly at Katsuki as if to confirm he's listening—and how could he not be, what with how Izuku's nearly in his lap. Denki hopes to God that Izuku can't feel how fast his heart is beating. "Yes," Izuku breathes. "I want that."

"Hear that, Kats?"

Katsuki doesn't say much, but suddenly stands up and throws Izuku over his shoulder like he's a sack of flour while yanking Denki by the waist to his room. Everyone else in the circle just laughs at them, not entirely sure if they're joking or not.

Denki's almost sure Izuku's pranking them, but he's about to find out.

Chapter Text

Denki ignores the sound of pointedly quiet footsteps outside Katsuki's room. He knows that their friends are curious, but he's still annoyed at how they're trying to listen in. At any rate, Denki and Katsuki have Izuku sitting between them on the bed, not sure how to initiate.

"You ever done this before, 'Zuku?" Katsuki asks, tugging his shirt off. "No big deal if not."

"Nothing," Izuku says, looking mildly embarrassed. "... You were actually my first kiss."

Katsuki flushes bright red at that. "Are you serious? I would've—I don't know—made it better if I knew—..."

"Kacchan, it was perfect," Izuku smiles softly. "I wouldn't change it... Kind of want to try it without all the smoke, actually." When Izuku blinks those big green eyes, bats those cow-like lashes, Denki sees Katsuki's face soften in real time. 

"No kidding?" Katsuki breathes, a hand coming up to cup Izuku's cheek. Izuku leans into the touch and presses forward to kiss Katsuki properly.

Denki suddenly wonders if maybe three's a crowd. Katsuki and Izuku probably want their alone time to talk their feelings out—Denki would just be in the way. It's not like all three of them could ever work out, especially when Katsuki and Izuku have been head over heels for each other since they were little. And Denki knows that he's an irritating guy to be around—that was the reason why Shinsou didn't like him back. He allows himself to watch them for a minute while he works up the resolve to slip out the door—

"Denki, why are you zoned out?" Katsuki scolds, "Izuku's waiting for you."

"Waiting for me?" Denki echoes blankly, finally noticing Izuku's scarred hand reaching for him. He takes Izuku's hand and rubs his thumb. "What do you want, sweetie?"

"Want you to kiss me," Izuku mumbles, his lips already looking swollen and plump. That makes sense—Katsuki's a biter.

Denki doesn't even think twice about giving in. In an instant, he's pushing Izuku down onto his back to trap him against him and the bed. Katsuki starts to suck at Izuku's neck and jaw while Denki swallows up all those pretty noises Izuku makes. The soft whimpers and moans coming out of Izuku are such a turn-on that Denki knows he's already rock-hard and leaking. He gently slots his thigh in between Izuku's and presses down to make Izuku cry into his mouth.

"Sensitive," Denki comments, but he'd guessed as much. "So you've never been with anyone?"

Izuku lets out a muffled whine. "Was busy—because of the war."

"Same boat," Katsuki mutters. He tugs Izuku upright and looks him in the eyes. "Are you sure you're into this? With both of us, I mean."

"Super duper into it," Izuku confirms, kissing Denki's forehead because he's a sweetheart. "I—um, I'm sorry, but you're going to have to help me out a bit... I don't really know what I'm doing."

"That's totally okay, Izu. I taught Katsuki, too," Denki reassures him. "We can go at your pace."

Izuku lets out a happy sigh when Katsuki noses into his jaw. "This is like a dream come true, you guys."

"Oh? Didn't know you dreamt about us, Mido," Denki jokes, ignoring the butterflies in his stomach. He pulls Izuku into his lap, hands on either side of his waist.

Izuku flushes. "Um—... No, I don't," he says shiftily, but both of the other boys see right through him—Izuku's always been a bad liar.

"Oh, really?" Denki says, amused. His hands find the hem of Izuku's sweater and tug it off to reveal Izuku's firm upper half. He starts at Izuku's neck, kissing all the way down to his chest. Then, he gets his tongue involved—he sucks and bites gently at Izuku's dusky pink nipples and is rewarded with sharp inhales and stuttered moans. Katsuki slowly palms Izuku's crotch through his thin shorts and starts to kiss him some more.

Izuku cries out into Katsuki's mouth when he feels a hand slip into his underwear and tug it down, leaving him completely naked in Denki's lap.

"Poor baby's so red," Denki coos. He takes a quick glance at Izuku's cock—the little thing's already fully hard and leaking onto his stomach. "Tell me what you want, 'Zuku."

"Ngh," Izuku keens, rolling his hips up to meet Katsuki's pace. "A-anything—mmm, I'll take anything you'll give me, just—just, please don't make me wait much longer."

"Okay, 'Zuku, we're gonna take good care of you," Katsuki mutters. He pulls Izuku out of Denki's lap and lays him down belly-up on the bed. "Keep him still, Denki."

Denki settles himself at Izuku's side for a good view, holding his hips in place as Katsuki starts to kiss down Izuku's happy trail. Ticklish, Izuku squirms a little, but any form of movement ceases when Katsuki's warm mouth closes around Izuku's tip. "Kacchan—Ka-oh—!"

Izuku tries and fails to buck up into the wet heat of Katsuki's mouth, Denki holding him steady on the bed. Then, Katsuki takes him all in—so deep Katsuki's lips are pressed to the curly patch of dark green hair above his cock—and Izuku arches up off the bed, going stiff.

Katsuki pulls off quickly. "Denki—Denki, I don't want the others to hear him..."

Denki can do something about that. He slips two fingers into Izuku's mouth and instructs him to suck to muffle the majority of the noise. Izuku blinks those big, watery eyes up at them, and Denki suddenly thinks that he looks pretty like this—his long eyelashes beaded with tears and his mouth stuffed to keep him occupied.

"Good boy, Izuku," Denki says quietly, his other hand gently rubbing Izuku's tensed lower stomach in circles for comfort. "Doing so good for us." Denki notices that Katsuki has one hand on Izuku's thigh and the other pumping himself quickly, getting off at the feeling of Izuku on his tongue. "You too, Kats, you're sucking Izu so well. Look at how gone he is just from your pretty mouth, baby."

Katsuki groans deep in his throat and Izuku goes ramrod straight, clutching at the bedspread. "Ah—ah, Denki—I'm close, won't last—'s too much, Kacchan," he sobs. Denki finds it funny how the little motormouth never shuts up, no matter the situation.

Just brushing a hand across his junk has Denki hissing in oversensitivity. Deciding that he's denied himself enough, Denki reaches the hand that Izuku was drooling on into his shorts and starts to jerk himself to the sight of Katsuki sucking Izuku's cock and Izuku crying and squirming against the soft sheets.

"You can let go, baby, whenever you feel like it," Denki says lowly. "Fuck, I wanna cum all over your face so bad."

"Oh—do it, please—fuck, Denki—do it," Izuku cries, a hand curling into Katsuki's soft, spiky hair. "Mmm—gonna cum, Kacchan—!"

Izuku lets out a wail—his loudest sound yet—when he finishes into Katsuki's mouth, and Katsuki massages him through it with his hot, wet vice of a throat. After a few more seconds of milking Izuku for all he's worth, Katsuki pulls off, wipes his mouth with the back of his hand, and reaches for Denki's cock to help him out.

It doesn't take long at all for Denki to get there, especially with Katsuki's soft, smooth hand working him through it. He briefly finds it in him to be proud of Katsuki for being such a quick learner, but the notion leaves him as soon as it arrives because Katsuki's aiming him at Izuku's teary red face and Denki's already coming in spurts all over. Then, when Izuku licks his lips for a taste and moans, Denki flops over onto his stomach to get his mouth on Katsuki as fast as humanly possible.

He laves his tongue all over Katsuki's cock to get it wet before stretching his mouth over it and taking him deep into his throat. Katsuki grabs a fistful of Denki's hair and tugs hard, rutting into his mouth before finishing with a low groan. It's only a few seconds before they're collapsing back onto the bed in a tangled little pile.

It's only because of the post-nut clarity that Denki remembers that Izuku's still there because he'd been watching so quietly. "'Zuku, come cuddle. Kats and I usually do after we finish." He cracks one eye open to watch Izuku clumsily make his way over and tuck himself in between them. Even though they're all sweaty, and their combined heat could bring shame to a furnace, hearing Izuku let a pleased-sounding sigh makes it all worth it.

Denki hopes Izuku felt cared for throughout the whole process, but he presses a soft kiss to his temple just to be safe. Then, he does the same to Katsuki.

Izuku seems dazed—happy. Denki wants him to stay that way forever, nestled cozily in between the both of them. Hopefully, Izuku will want to continue joining in on their little escapades.

But for now, Denki's content to drift off to the sound of their intermingling breaths.

Chapter Text

Denki wakes up with his face stuffed in Izuku's mint-scented hair. Not a bad start to the day.

Izuku's on top of him, still dozing, and Katsuki's on the side holding them both. Denki kind of wants to stay like this forever, but unfortunately, Denki knows that Katsuki and Izuku would both be upset if they slept through morning training.

"'Zuku," Denki croons, rubbing the sleeping boy's back. "Wouldn't want to miss training, would you?"

Izuku stirs, cracks one eye open blearily, and then proceeds to squeeze his eyes shut and cuddle Denki even harder. "Don't wanna, 's my rest day."

"If you say so," Denki shrugs. "Kats?"

Katsuki looks half-awake and irritated. "You want us out of your bed that bad? Fuck, just say you hate us."

Denki laughs at Katsuki's comment, deciding not to overlook how sincere he sounds. "Right, I'd totally be cuddling you bitches if I hated you. Not to mention the stuff we did to each other last night..."

"Yeah, well, you were fucking that purple-haired motherfucker and now you guys can barely look at each other."

Denki stiffens and the room goes quiet. He gets a sudden urge to flee the scene. Izuku doesn't say anything, and it's definitely not because he'd fallen back asleep, because his eyes are wide open.

"I don't even know what you're accusing me of right now," Denki says slowly, trying not to show his hurt.

"I just feel like that's relevant information when you've done all the shit we've done with another guy who's pretty much in our fucking class," Katsuki bites. "Is this just some thing you do? Get guys to—"

"You came on to me," Denki reminds him quietly, but he feels a little like he has heartburn even though he's just woken up. He needs to leave, he needs to—

"Don't you think I have a right to know why exactly Shinsou decided you weren't worth the hassle?"

"Kacchan!" Izuku says, looking horrified.

"Shit—Denki, that's not what I—hey—"

Denki stands up suddenly and walks out.

-

He finds himself outside, still in his pajamas and sitting on a bench that overlooks a koi pond. It's a pretty view, but Denki can't bring himself to fully appreciate it.

Alternating between sharp pain and numbness, Denki tries to put his exchange with Katsuki out of his mind. But he can't forget what Katsuki had asked him last.

It opened up old wounds, making Denki relive the hurt and embarrassment of Shinsou not returning his feelings even though they were fucking multiple times a week. Maybe Denki should've used his head more when Katsuki first propositioned him, but his judgment had been clouded by shock and arousal.

Denki thinks it would be very difficult not to be on speaking terms with Katsuki. The very thought makes him cry a little—and Denki isn't a habitual cryer. But Denki's pulled out of his thoughts by a sudden voice.

"Morning, Kaminari. Nice day for a stroll, don't you think?" It's Present Mic. Denki proceeds to burst into tears. "Oh."

Denki covers his face with both hands. "Ugh, this is so em-embarrassing," he whimpers and sniffles miserably. "Just do me a favor and forget you ever saw me, sensei."

"I'd never do that," Present Mic says kindly. "I'm going to take a break from my walk right here on this bench if you decide you want to talk."

"But—but my issue is kind of—inappropriate—"

"Try me."

"Okay... I started hooking up with Bakugou." Denki lifts his head and surveys Present Mic's attentive and carefully blank expression. He decides to keep talking. "And then yesterday, Midoriya joined us."

Now, Mic's eyebrows shoot up curiously. "The more the merrier?"

"Well... I guess the problem is that it didn't come out until last night that Shinsou and I used to hook up first year."

"... You mean my adoptive son, Hitoshi."

"That's the one." Denki wants to crawl into a hole and never come out, but he shoulders through. "And now, Katsuki's mad that I didn't tell him that it was Shinsou, or why things ended between us, because he feels like I owe him that information or something."

Present Mic is quiet for a few seconds. "I was in a similar situation, once upon a time. But love tends to work itself out, my boy. Just try to be open with your feelings from now on so that everyone's on the same page."

Love? Denki isn't in love with—... But he suddenly envisions Katsuki and Izuku cuddling him on the bed, remembers the domesticity of brushing his teeth in front of Katsuki and eating his pancakes, and—

"Shit," Denki says, eyes wide. "I'm in love with Katsuki and Izuku. Fuck. Fuck fuck fuck fuck—"

"Is that such a bad thing, though?" Present Mic muses. Denki finds it in him to be glad he's ignoring the bad language. "Before Shota and I, it was the two of us and Oboro. I miss it sometimes... Don't let miscommunication ruin a beautiful thing, Kaminari."

Denki wraps his arms around himself in an attempt at self-comfort. "Thanks for the advice, sensei."

"I hope everything works out, kid. I'm always here if you want to talk." With that, Hizashi claps Denki on the back and resumes his morning stroll.

-

After Denki had run out, Izuku really laid into Katsuki as best he could.

"Kacchan, why would you say that to him? Oh my God, he looked so hurt—" Izuku rambles, his face in his hands.

Katsuki's turned uncharacteristically quiet. "... Yeah, yeah, I just fuck up everything good going on in my life. You should be used to it by now, Deku."

Izuku feels a pang in his heart when he sees tears brimming in Katsuki's eyes. "Oh, baby, come here." He opens up his arms in invitation and Katsuki looks at him doubtfully before snuggling up.

He hears a little sniffle. "D-don't be nice to me, 'Zuku."

"You can fix this, Kacchan," Izuku murmurs. "Kacchan can do anything."

"Yeah—everything except tell the little shit I'm in love with him."

They both freeze.

"I—," Katsuki chokes out, "I didn't mean—"

"He loves you, too," Izuku says with a watery smile. "I just know he does."

Katsuki goes quiet. "How could he? I'm—I'm me, I don't even know how to be a good friend, much less a boy—..."

"Oh, Kacchan," Izuku whispers, pressing his forehead to Katsuki's. "You're my symbol of victory. If you put your mind to it, you can do anything. That's how it's always been since we were kids."

"Izuku..." Katsuki says quietly. "I don't deserve you. Either of you."

Izuku kisses him softly, chaste, and pulls them both back into bed—Denki's bed. "Yes, you do. The only thing we're missing is..."

"God, I'm such a fuck-up," Katsuki groans, rubbing away new tears springing to his eyes. Izuku helps him.

"We'll fix this. But first, let's just give him a little space to calm down. I think he'd appreciate it."

"If you say so. Should we move to my room, then?"

"Okay, Kacchan."

-

When Denki gets back to his room, Katsuki and Izuku are nowhere to be found. He's slightly relieved, yet bitter they didn't stick around.

Denki considers Present Mic's advice; he needs to be more upfront with his feelings, but what if Katsuki wants to end things? What then? It's not like Denki can beg him to stay. And it's not like Katsuki's a feelings guy.

He just hopes the whole thing will blow over. He'd hate not to be on speaking terms with two of his best friends.

-

Katsuki and Izuku are cuddling in broad daylight on the couch.

Repeat: Katsuki and Izuku are cuddling in broad daylight on the couch.

Denki nearly pops a blood vessel when he first sees them. It makes him even angrier when he hears their friends commenting on it, wondering if they'd gotten together after last night.

"Hey, man. You okay?" Eijirou asks when they're both in the kitchen, meal-prepping for the upcoming school week.

Denki forces a smile. "Uh—yeah? Why wouldn't I be?"

"... Okay, that's chill," Eijirou resumes cutting his carrots into matchsticks. He's seemingly trying to make kimbap, if Denki were to guess from all the ingredients laid out on the counter. "You know you can tell me anything, right?"

"I appreciate it, man, but there's nothing to tell," Denki lies easily. "Good luck cooking."

He leaves the kitchen and proceeds to run directly into Katsuki's firm, built chest. Talk about rotten luck.

"Denki—," Katsuki starts, but Denki's already cutting him off.

"If you were going to apologize, don't bother. I can tell you meant what you said," Denki says, trying to seem as aloof as humanly possible.

"Just hear him out, Denki," Izuku pleads, but Denki can't hear past Katsuki's big hand on Izuku's waist. Katsuki never did anything public with Denki before that game of truth or dare, but apparently, Izuku's so much more special to him that he deserves more.

That makes Denki bitter. "Katsuki, we're done. Leave me the fuck alone."

Katsuki takes a step back in shock. "Wait, what?"

Denki laughs humorlessly. "You thought I had so little self-respect that I'd keep fucking you even after you said that shit to me? Really on brand for you, dude."

"Denki, can you just fucking hear me out?" Katsuki says loudly, with a glint of panic in his eyes. "I never meant it like that—!"

"You did. And, yeah, maybe I should've told you why Shinsou 'decided I wasn't worth the hassle,' but sue me for not wanting to tell you that I caught feelings for the guy and I was too annoying for him to like me back! Wasn't something I wanted to broadcast. Now, leave me the fuck alone—both of you." Denki directs a poisonous glare at a crying Izuku, too, and the shorter boy flinches. Now, Denki feels even more like a villain, but he can't take his words back.

"... Okay," Katsuki says, sounding defeated. Denki doesn't think he's ever heard Katsuki sound quite like that. "I'm—sorry. We'll give you space... Thanks—thanks for everything." Katsuki tugs Izuku away, presumably towards his room, and Denki starts to break down.

Fuck.

-

Denki can't bring himself to go to class the next day. He fakes a fever, calls in sick, and rots in bed all day on his phone.

When classes are over and his classmates are back in the dorms, Denki happens to overhear a conversation between Uraraka and Iida going on outside his door.

"Tenya, I can't believe Izu and Bakugou are dating now! Izu's been in love with him since forever," Uraraka gushes. Denki's stomach turns inside out.

"Yeah, I'm happy for them. But I'm a little surprised that they're being so open about—I didn't think Bakugou was that kind of guy."

"Oh, I thought he'd be. He's so protective over his things that I think it makes sense that he's staking his claim so publicly."

"They really suit each other, don't they?"

Denki claps his hands over his ears to not get his feelings trampled on even more. He really does have rotten luck.

-

Over the next few days, things get so bad that Denki decides to text Shinsou for an outlet.

2:05 AM

hey
you up?

yeah
you okay?

yeah i'm chilling hbu

same
so
what's up

was wondering if you maybe
wanting to start fucking again

..
thought you were fucking bakugou and izuku

not anymore

why not

i don't want to talk about it

okay that's cool
but i'm actually exclusive with someone now
sorry

Denki nearly throws his phone.

oh chill
who
if you don't mind me asking

hanta
we've been dating for a few months actually

good for you
come to think of it ofc you two would vibe

yeah
i love him a lot

Denki starts to cry again. He thinks he hasn't cried this much in his whole life, ever... not even during the war. He chalks it up to hormones.

He leaves Shinsou on read, even though it's rude. He's never felt this lonely.

Denki curls up in bed and clutches his pillow to his chest and pretends that it's Izuku. He pretends the wall that's up against his back is Katsuki.

Feeling absolutely pathetic, he drifts off.

Chapter Text

Denki doesn't realize that he hasn't talked to his friends in weeks until they stage an intervention.

He's on one of his intentionally short trips to the kitchen for some pain meds to calm his migraine when he gets shoved into the living room by Mina, who doesn't explain why she's dragging him along. There, he finds Kirishima, Sero, Shinsou, and Jirou sitting around the fireplace.

It looks like they'd been waiting for him.

"Hey, guys," Denki says with a nervous laugh, "how's it going?"

"Take a seat, man," Kiri says. He isn't smiling, and that makes alarms go off in Denki's head.

"... Okay." He sits across them. "What's up?"

Mina exhales. "Denki, we're all worried about you. You don't talk to anyone, you're skipping so much school, we never see you eat, and you've lost so much weight, and—and we just want you to talk to us. Please tell us what's going on because, frankly, you look like shit."

Denki stiffens. "Oh."

"We're saying this from a place of love, Kami," Jirou says like she's begging for something. "We just want to help you, please don't misunderstand our intentions."

"Is this because of Bakugou?" Sero questions him. "You need to tell us what happened."

The minimal contents of Denki's stomach swirl. "I can't do that."

"What? Why not?" Shinsou snaps at him, and Kiri puts a warning hand on his shoulder to make him calm down.

"Because—because I don't want to? What makes you think I owe you jackshit, dude?" Denki says back, trying his hardest to sound equally as aggressive. He tries to stand up, but Sero sees it coming and tugs him back down as soon as he manages to get on his feet.

"Well, we're going to assume the worst if you don't tell us exactly what happened," Shinsou says angrily.

That's not good. Sure, Katsuki broke his heart, but everything they did was more than consensual.

"Fuck right off with that bullshit. Yeah—we were hooking up. Everything's fine. It's none of your goddamn business." Denki stands up again and no one stops him this time. "And, Shinsou—fuck you. Don't pretend you give a single flying fuck about me. Just leave me the fuck alone—all of you."

Denki storms out, his chest heaving. They let him leave.

-

He catches Izuku loitering outside his room, an ear pressed to the door. "Get lost. I'm not in the mood to argue," Denki tells him tiredly.

"Denki!" Izuku straightens and pretends like he wasn't snooping. "Um—... I was just wondering if you were okay."

"Yeah. Now leave," Denki scowls, pretending like he doesn't feel like an exposed wire. He's worried that the second Izuku starts prodding, he'll break.

"Baby, please just hear me out," Izuku pleads. "The whole thing was just a misunder—."

"Don't fucking call me that," Denki snarls. "If you don't leave right fucking now, I'll electrocute you all the way to Madagascar."

To no one's surprise, Izuku starts to cry. "We miss you—Kacchan misses you, and—and nothing's the same without you, D-denki—please come and talk with us. Just once, and then we'll leave you alone."

"... I hate it when you cry, Izuku."

"I'm—I'm sorry—I can't stop—," Izuku sobs, "I just miss you so much, Denki."

Denki sighs. He opens his arms and Izuku comes rushing in as if he's worried Denki will change his mind. Now that Izuku's crying into his chest, Denki can admit to himself that... maybe he should hear them out.

"We can talk," Denki whispers, holding Izuku a little tighter. "I'm sorry."

"D-don't be sorry," Izuku sniffles miserably. "It's our fault. Can you come to Kacchan's room now?"

"... Yeah."

-

Denki finds himself sitting across from Katsuki and Izuku, pointedly not joining them on the bed. Katsuki's looking at him like he thinks Denki'll disappear if he even blinks.

"Didn't think you'd give us a chance," Katsuki mutters, breaking the silence. "I wouldn't if it were me, after what I said to you."

"Almost didn't," Denki says, looking at the floor.

"We miss you," Katsuki whispers. "Please."

"Please, what? What do you want from me?" Denki pleads weakly. Katsuki hesitates and lays a hand on Denki's shoulder, which prompts an (almost) accidental 50-volt shock. Even when Katsuki jumps and hisses, Denki doesn't do so much as apologize. "Don't touch me."

"O-okay, fuck—sorry," Katsuki mutters. "Y'know, on second thought, maybe this isn't the best time."

"For you?" Denki's eyes narrow, confused.

"For you. I—I just thought you'd be more receptive to what I have to say, and—"

"Yeah, run off the second you decide I'm not 'worth the hassle'. Very on brand for you." I regret you coming onto me that day in the showers, because then I wouldn't know what it's like to be hurt by you, you asshole, Denki thinks bitterly.

Katsuki's mouth drops open, and in a surprisingly Izuku-like fashion, tears start to collect in his eyes. "I didn't mean it," he says softly, "please believe me."

They're all quiet for a minute. "I can't. Katsuki, I can't trust you enough to not break my heart again."

"... I—... okay. I understand," Katsuki grits out, looking absolutely crestfallen. Denki doesn't miss the way Katsuki slightly turns his face so that Denki wouldn't catch the sudden onset of tears. "Fuck—fuck, I'm so s-sorry, Denki. I'm sorry I f-fucked it up for us. I always do this, I—I—..."

Denki swallows hard. He's never quite seen Katsuki like this since the war—so distressed and self-deprecating. "Don't say that." He glances at Izuku to see him also turned away and quietly crying. "But—... if I were to give you another chance... what would change?"

Katsuki looks at him with a glimmer of hope in his eyes. "If we could all be together, I would make sure everyone knew. I'd be so proud to say that you're mine—get rid of those silly ideas that you're not enough. I would take you out to show you how much I l—..."

Denki's mouth drops open in shock. Katsuki looks like a deer in headlights.

"How much we love you," Izuku finishes, hesitantly crawling onto the bed. "That's what Kacchan's trying to tell you. I love you, Denki."

Denki's world spins and he finds himself lurching into Katsuki's chest, but Katsuki catches him and holds him close.

"I love you, too," Denki admits quietly. "Both of you. I want us to work."

Katsuki exhales and presses a kiss to Denki's cheek. "Holy shit. Thank Jesus."

Izuku gives a watery laugh. "Thought you were an atheist."

"I'd personally pray to every single god out there if it meant—"

"Don't finish that sentence," Denki says, and smiles in relief for the first time in what feels like forever. "Tell me you love me again."

"I love you." And then, Katsuki pushes Denki back onto the bed and kisses him all over. "God, I missed you so fucking much. It was killing me."

That makes Denki cry because he's felt the exact same way. "'Zuku come here." Izuku makes his way over and kisses Denki on the nose while Katsuki kisses his jaw.

Suddenly, Katsuki shoots up. "One sec." He clambers out of the bed and Denki hears him run down the stairs before announcing to everyone who might be in the living room, "Listen up, you shits—Denki and Izuku are mine now, got that? If you hurt those fuckers, I'll give you hell. Also, we're going to need a few days to catch up on—... y'know... so don't bother us. That's all. You can keep eating or whatever."

Denki hears applause and congratulations, and Katsuki's back in the blink of an eye.

"Glad that's out of the way."

"Oh, you're all red." Izuku coos, pinching Katsuki's cheek gently.

"Yeah, yeah, whatever," Katsuki gripes, but looks between them like they hung the stars. "I love you. I don't think I'll ever get tired of saying that."

"Maybe if you say it enough," Denki says, half-joking, but Katsuki obliges him anyway.

"I love you," Katsuki repeats sincerely.

"Fuck yeah. Let's take a nap." The three of them curl up together in Katsuki's bed with Denki in the middle.

Not a bad way to end an argument.

Chapter Text

It only takes a few weeks for three of them to fall into a comfortable rhythm. Katsuki will cook them breakfast, they'll walk to class together, they'll train together, decompress, and fall asleep in one of their beds.

Denki's enjoying himself. He loves that Katsuki and Izuku aren't afraid to make it obvious that the three of them are dating. Sometimes, their friends walk in on a pair of them making out in the kitchen, and they don't even have to pretend to have been doing something else.

But something's missing.

It's not like they aren't emotionally intimate with each other, but Denki finds it hard to wrap his head around the sudden change in their relationship. And it doesn't help that he hasn't gotten much time to himself to take care of any 'problems' Katsuki or Izuku leave him with, because they're always together.

One evening, Denki decides he can't take much more of them cuddling on the couch. "Guys. I can't keep doing this."

Izuku and Katsuki both sit up, alarmed. Izuku says, visibly upset, "What? I thought we were doing good. Did I—"

"We are," Denki grits out, "but I haven't gotten off in a month and it's really fucking with my head. Can someone please touch my goddamn—!" He cuts off when he feels a warm hand slip into his lap.

It's Katsuki. "Was trying to give you space," he mumbles, palming gently at Denki's cock through his shorts. "Sorry. I should've asked."

Izuku presses closer to Denki and mouths at his jaw. "I haven't gotten off in a while either."

"Fuck," Denki exhales. "Can we move this to my room?" He doesn't even wait for an answer before springing up off the couch and making a break for his room. Behind him, he hears the telltale sounds of Katsuki picking Izuku up. Denki's completely naked before the other two even step foot inside.

"Eager much?" Katsuki smirks, setting Izuku down before helping him strip naked.

"Hell yeah, I am. What should we do?"

"Uh," Katsuki hesitates, "is it too much to ask to actually fuck tonight?"

Denki's mind slows down. "We can. Fuck, I want that."

"Me too," Izuku says, but trails off, "and, um... It's obviously okay if I don't..."

Denki tries to work out the logistics. He's bottomed before, and Katsuki wants to top, but Izuku also wants to be involved, also wants to have his first time...

"Wouldn't it make the most sense for Kats to fuck Izuku?" Denki says, trying not to seem too unhappy at the prospect that Katsuki's first time wouldn't be with him.

"What? But I made you a promise, Denki. My first time's gonna be with you," Katsuki says softly. "... If you still want to."

Denki suddenly finds himself on the verge of tears. "You—you still want it to be me?"

"Yeah, baby." Katsuki kisses him firmly. "I want it to be you. And I want you to fuck Izuku."

They both turn to Izuku, who's flushed red at the sudden attention. "Please, Denki?"

"Fuck—yeah, I'd love to," Denki's chokes out, surprised. "Never topped before, though." His vivid imagination suddenly provides him with a picture of himself balls-deep inside Izuku, reddening at the parts where his hips hit the meat of Izuku's godsent ass—

"So we'll all be having first times," Izuku supplies happily, kissing Katsuki on the cheek.

Denki stills, a Eureka moment ripping through him. "... What if—... What if we do it all at the same time? Kats fucking me, me fucking 'Zuku?"

"You think you'll last?" Katsuki teases, slipping off his shirt and throwing it onto a chair.

"Hey—maybe you should try to last, Mr. I-never-jerk-off-because-I-don't-want-to-explode-my—!" He's cut off by Izuku's sweet little giggle, pressed into his side. Denki could get used to this. "Anyways. 'Zuku, have you ever tried fingering yourself?"

"Um," Izuku says shyly, "I've tried—I've just never really been able to make it feel that good because my fingers aren't long enough."

Denki's dick twitches at the mental image of Izuku trying to finger himself in the shower, but whining and getting frustrated when he can't do it properly. "Kats will finger you while I give him pointers, okay?"

"Fuck yeah," Katsuki says, pumping a fist into the air. "On your stomach, baby."

Izuku turns over, gets into a kneeling position, and bends over so that his chest is pressed to the comforter and his ass is presented to Katsuki and Denki. Denki grips one of his thick thighs tightly and pulls it aside to part his legs more, while Katsuki presses a firm hand to Izuku's lower back to get him to arch. Izuku's making a visible effort to keep still, which Denki notices and appreciates.

"You're so fucking pretty, 'Zuku," Katsuki murmurs, groping at Izuku's ass. It doesn't escape anyone's notice that Izuku starts dripping even more, his little cock hard as a rock against his tummy. "Such a good boy."

They both ignore Izuku's drooling, throbbing cock in favor of focusing on his hole. Denki helps Katsuki lube his fingers up and decides to warn Izuku, "Baby, Kacchan's gonna put one finger in you to start, okay?"

"Mm-hm," Izuku says softly.

Katsuki slowly sinks a finger in, knuckle-deep. "So warm and soft inside, sweetheart."

"Let him get adjusted for a bit, and then you can move."

"Kacchan, it's okay—you can move already." Katsuki fucks the finger in and out and Izuku whines. "Oh fuck."

It's always a special treat when Izuku decides to become a potty mouth if he feels too good. Denki squirts a little more lube onto Izuku's hole and Katsuki easily slips in another finger.

"Kats, crook your fingers like this."

Katsuki does what he's told and is rewarded by a sharp moan that sounds like it's been punched out of him. "Ah—fuck, feels good—"

"When you think he's ready, you can put in a third." Denki dips down to give him love in another area, takes one of Izuku's pretty, little nipples into his mouth and revels in that frantic pleasured arch.

Katsuki's thin, long fingers press deep into Izuku's prostate and don't let up for a second, while his other hand curls into his hip to keep him in place. Izuku squirms anyway, looking like he won't last. "Fuck fuck fuck—gonna cum, Kacchan," Izuku says tearily, "please—!"

At that point, Katsuki's deemed Izuku's hole sufficiently pliant enough to take Denki's cock. He pulls out and fists Izuku's cock to get him needier.

"Oh—fuck, close," Izuku chokes out, a hand buried in Denki's hair to weakly push him away from his sensitive chest. Almost in unison, Katsuki and Denki both pull off and let Izuku catch his breath. Denki does a hurried job of getting himself ready for Katsuki, and then they're all ready to start.

"Okay," Denki mutters, "how do we do this... How about I start fucking Izuku and Katsuki joins in whenever he feels like it?"

"Sounds like a plan."

Denki flips Izuku onto his back and crawls on top of him. "Ready, baby?"

"Fuck me, Denki," Izuku says, looking a little desperate as he leans forward to kiss him. Denki grinds a little against Izuku before pressing inside with a hiss.

"Oh—oh, fuck, Izu—you feel so fucking good, sweetheart," Denki gasps, trying hard to move slowly. The sheer tightness might just kill him, even if he tries not to think about how no one's ever had the pleasure of being inside Izuku. "Doing okay?"

"Mm—," Izuku moans, eyes wide, "uh—fuck, 's so big—" Denki bottoms out fully, and Izuku lets out a pleased sob. "Kacchan—Kacchan, get in Denki already!"

Katsuki doesn't respond, but Denki feels his warmth press up against him. "Ready for me?"

"Yeah, yeah—just do it," Denki moans, already worried that he won't last.

Katsuki fumbles around and finally slips inside Denki with a low groan. "Ah—oh my god, Denki—you're so fucking tight—" He fucks into Denki once experimentally, but stills when Denki squeezes around him. "Baby, you can't be doing that—ah, I'll come so fast—"

Every thrust Katsuki gives him pushes Denki deeper into Izuku. It's almost like Katsuki's fucking Izuku, too.

"'S okay, baby," Denki breathes out shakily, "you can—you can come in me whenever you need to." He squeezes his eyes shut and tries to concentrate on the feeling of being chest-to-chest with Izuku, with Katsuki pressed to his back.

Katsuki lets out a sound like he's crying behind Denki, and Izuku clenches around him, almost as a response. The hot, wet grip of Izuku's ass has Denki gasping and struggling to keep himself fucking in and out without letting himself succumb to the temptation of finishing too early. At least in this position, Izuku's cock can rub against Denki's hard tummy for friction every time Denki thrusts into him.

"Fuck, I'm sorry—I'm sorry, I'm close," Denki sobs, his movements turning jerky. "Please, can I?"

Katsuki presses a kiss to Denki's nape and fucks him slower, harder, deeper. "Mm—yeah, baby, come for us—so beautiful, I love you—feel so fucking good around me," Katsuki mutters, a stark contrast from his usual style of speech. On the other hand, Izuku's dumb and drooly—face so red and teary that his pretty freckles stand out even more. Good to know there's such a fun way to shut him up.

Denki shrieks all the way from his chest when he finishes, but muffles himself at the last second by capturing Izuku's mouth and letting him swallow up all his noises.

But it's heaven and hell in one when Izuku and Katsuki continue to milk Denki through it, keeping him in use to chase their own releases. The wetness spilling out around Denki has him seeing stars from the slide.

Izuku bites down on his own hand to dampen his sounds as he finishes by rutting against Denki's stomach. Chest heaving, he doesn't make any move to have Denki pull out as Katsuki grips Denki's waist in both hands and fucks him faster into overstimulation.

"So good, so—so fucking good, Denki—ah, love you, I love you—," Katsuki sobs as he thrusts in one last time before finishing deep inside Denki. Then, he collapses in a heap.

There's a silence as the three of them lie on top of each other, nobody making a move to pull out.

"... Sensitive," Denki says hoarsely.

"Ready for me to pull out?" Katsuki asks, sounding equally as exhausted, but pleased.

"Yeah, you can."

Katsuki slowly slips out and grabs a towel from his dresser to clean Denki up a little.

"'Zuku, you ready to get cleaned up?" Katsuki asks. He's prepared to catch any possible spills before he hears little snores coming from under Denki. "Oh, baby's asleep."

"I'll wake him up if I pull out," Denki mumbles. "Oh well..." He lets Katsuki move him back so that he detaches from Izuku. The two of them watch intently as Denki's release starts to seep out of Izuku's stretched, pink hole.

"Might get hard again," Katsuki whispers in disbelief.

"No," Denki groans, "too tired, Kats. Let's just sleep."

"... Kacchan," Izuku says, ostensibly now awake after his tiny power nap, "wanna fuck me, too?"

Huh?

"Oh, Izu... for real?" Katsuki says in awe. His big hand comes up to grope at Izuku's ass and flips him over onto his stomach. "You really want me to add to Denki's mess?"

Izuku gives a full-body shiver at that. "Wouldn't even need to lube up again. Saves time." He brushes a hand past his cock and hisses in oversensitivity.

"I'm definitely gonna lube up, baby," Katsuki says as he grabs the little bottle. "The stretch will be a bit bigger, okay?"

Denki rolls his eyes playfully and jabs, "Hey, no comparing." Taking a seat back on the bed for a better view, he leans back and just watches.

As expected, it's a good show.

Izuku and Katsuki both keen when Katsuki gives a tentative thrust forward into Izuku's used hole. "You okay?" he mutters, voice strained. Denki likes it when he sounds like that.

"Yes—fuck, yes, Kacchan—," Izuku all but sobs, burying his face into the pillow and arching his butt up to meet Katsuki's hips. The spattering of freckles along his back dance when Katsuki starts to fuck him harder, faster, until Izuku's a mess of mewls and cries.

Katsuki's gotten good at targeting Izuku's prostate—Denki thinks he might even to be able to make Izuku come hand-free. Tears trail down Izuku's face as he tries to rut into the bed, but Katsuki stills him with two big hands at either side of his waist.

"Untouched, Izuku. Want you to come untouched," Katsuki says raspily, lips so close to Izuku that they're nearly pressed to his red ear. "Can you do that for me?"

Izuku doesn't even respond—can't respond with the deep, heavy thrusts that send shocks up his spine. The difference in stroke game between Denki and Katsuki must be stark.

Denki slips two fingers into Izuku's drooly mouth to distract him from the intense stimulation. He rubs into Izuku's tongue and the roof of his mouth.

"Please—," Izuku says, voice small and brittle around Denki's fingers, "touch me, 's too much—Kacchan—!"

"Okay, Izu," Katsuki says lightly, and brings a hand down to wrap around Izuku's throbbing erection. The little thing is covered in precum and red. "You close? Gonna come for me like a good boy?"

"O-oh—yes, fuck—mm," Izuku gasps. "Harder, Kacchan!" Katsuki obliges him, tugging Deku's hips closer to change up the angle—get deeper in every stroke.

"You—you feel so fucking good, Izuku," Katsuki says, voice nearly a whine. "So t-tight—are you close? Gonna come soon? I'll—I'll try to last, but—ah, fuck—!"

Izuku suddenly convulses and paints the bedspread white, going limp in the process. Katsuki fucks him hard for another few strokes before he stills and finishes deep inside him.

As they try to catch their breath, Katsuki pants, "... You okay, baby?"

"Mm-hm," Izuku says quietly, eyes squeezed shut and seemingly beyond words. Katsuki makes the executive decision to pull out so that they can start cleaning up.

"I'll be right back," Katsuki says. He leaves the room and returns a few minutes later with two damp washcloths.

Apparently, the first one is for Denki. Katsuki cleans him up with a look on his face that's so full of pure adoration that Denki gets startled. Then it's Izuku's turn, but he's already halfway to sleep. Katsuki leaves the room again and comes back with his hands full of their favorite snacks and glasses of water.

"... Thanks for being my firsts," Katsuki says quietly. "Wouldn't have it any other way."

Maybe Denki's just emotional, thinking about how impossible it seemed back when they weren't on speaking terms, but he squeezes Katsuki with so much love and intensity that a little zap emits from him.

"I'm glad we could work it out," Denki says, words too shallow for the deep emotions he's actually feeling. "I don't know how I thought I could ever stay away from you."

Katsuki buries his head in Denki's hair and sounds a little choked up when he murmurs, "I love you so much, baby. Didn't think I could ever have this much love for anyone... let alone two people." He turns over and brushes the unruly curls from Izuku's face and kisses him on the forehead.

"Goodnight. I love you, Katsuki," Denki whispers. "Love you, 'Zuku."

"... Love you," Izuku says, voice sleepy and muffled, but he leans over to kiss them both.

The room is quiet except for the soft hum of Denki's desk fan and the gentle rhythm of their breathing. Katsuki settles back between them, arms instinctively curling around their waists like he's anchoring himself to something safe and warm. Denki shifts closer, tucking his head under Katsuki's chin, and Izuku drapes an arm over both of them, his fingers brushing Denki's back.

There's no need for more words now. Just the steady thrum of three heartbeats syncing up in the silence, the warmth of skin against skin, and the quiet understanding that they've found something real—something worth holding onto.

Outside, the world keeps spinning. But in Denki's dimly lit room, the three of them breathe in unison, tangled together in a knot of limbs and love, and slowly, they all drift off to sleep.