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It’s late. Denki is thinking about heading back to his dorm as Kiri and Sero leave Izuku’s room after their little movie night in Izuku's room. He doesn't get the chance to get up from where he had been sitting on the edge of Izuku’s bed before Izuku is smiling sweetly at him and asking, “Do you want to stay the night here with me? I figure it's better than being caught out of your room at this hour.”
Of course it is. It also gives Denki the chance to spend more time with Izuku. Something he loved to do. Izuku was just so welcoming and easy to get along with. It put Denki at ease. He would put any person at ease really.
“Of course, man. That sounds great. Can I borrow some pj pants though? I’m not sleeping in jeans.” Denki chuckles as Deku heads right to his pajama drawer and starts looking for a decent pair of sleep pants.
He finds some and tosses them to Denki before heading into his bathroom to change. Denki takes this as a chance to change himself, stripping out of everything before climbing into his loaned pajamas. It feels kinda weird to be exposed like this in someone else’s room, but he shrugs to himself and just hurries his pants on. Perfect timing too because Izuku left his bathroom without warning, dressed in a full pajama set and cheeks cherry red as soon as they spotted Denki’s chest.
“O-Oh, did you want a pajama shirt? I totally forgot to-”
“Nah, man.” Denki interrupts. “I don’t like wearing shirts to sleep. Just pants for me.” Kaminari stood proud in Izuku’s All Might patterned pajama pants.
Izuku gave a nod and climbed right into bed, nodding to the side of the bed that sits snug against the wall, waiting for Denki to climb in with him. When he did, Izuku turned onto his side, facing away from Denki to turn off the lights, humming happily as he feels the warmth of Denki snuggle up to his back. It’s always comforting to Izuku to have a friend over for the night. It helps him remember that he isn’t alone and that any one of his friends would be there for him if he needed it. Even if it's something as small as this, he appreciates being able to have it in his life.
It's surprisingly quiet as Izuki drifts to sleep. Denki doesn't chatter on about random trivia he learned on the internet. Izuku just thinks Denki is as tired as him, but in reality, Denki is trying his hardest not to think about the current situation. He’s half hard already, the sight of green hair in front of him that belongs to his friend only pushes his mind to think of what that hair would be like to pull while fucking into Izuku.
He can’t stop thinking about it. About fucking his friend. It’s messed up of him and he knows it. He shouldn’t have these thoughts. He shouldn’t want those plush thighs wrapped around his skull while he sucks Izuku’s cock.
The worst part. The very worst part of all of this is how Izuku’s ass is pressed right into Denki’s groin. His cock swells slowly as he tries not to think about it, but once in a while one of them will shift and reignite his lust. When did Izuku shift enough to have his soft ass pressed against his friend’s hardening cock? Who knows? All Denki knows is how badly he wants to fuck it. He can’t help but let a hand slide down over the other’s ass, caressing it and wondering what Izuku eats to have such a beautiful, thick ass like this. Maybe it's genetic.
He can’t hold back. He lays his face in the other’s neck and slowly grinds on Izuku as his cock fills out fully, hard and needy in his pants. He tries so hard not to whine as he grinds into the other, laying a kiss to the back of Izuku’s neck. He never thought he would ever take advantage of a sleeping friend, but he’s been in weirder situations than this.
He can’t help what he does next. It's almost like he has no control over his actions. He lifts his head to lean over and watch Izuku’s face to make sure he’s asleep as his hands work down Izuku’s pajama pants before working his own down. He feels horrible, but overall he’s too horny to stop. He doesn't want to stop, but he knows he should limit himself to just outercourse. He would wake Izuku up if he tried anything other than that, and those thighs are so plush and fuckable. He has to have them.
After spitting in his own hand he lubes up his hard cock and carefully pushes between the other’s thighs, hands pulling those thighs apart to give him some room before letting them engulf his cock. The moment he shifts his hips to thrust carefully into the other’s thighs, he can’t help but let out a happy whine into the other’s hair. It’s beyond perfect. He’s always wondered how soft these thighs really were, and as it seems, they are as soft as the clouds in heaven.
He bites his bottom lip to help hold in his sounds as he takes his time fucking the other’s thighs, hand wrapping around Izuku’s cock, loving how it fit perfectly in his hand while soft. He begins to fondle it, loving how it swells slowly with interest. His own cock feels like it's being enveloped in an angel’s mouth. It slowly pushes in and out between the other’s closed thighs, the spit helping lube the action.
He doesn't want to be the only one enjoying their time together. Even if Izuku is asleep, he wants him to feel good. He doesn't want to be selfish and keep this feeling to himself.
He told himself he wouldn’t make a move on his green haired buddy tonight. He lied to himself. It’s too incredible to resist. The thighs around his cock have him groaning in his own mouth, slowly fucking into them, scared to wake the other, but close to telling himself not to hold back. He needs to. He knows he does but…
His hand stops fondling the half hard cock and he lets go of it, letting the same hand run over Izuku’s freckled ass. Even in the dark, Denki can make out the cute patterns of said freckles. He wants it. He needs it. He knows he can’t have it. He knows he hasn’t earned it. If Izuku knew what he was doing-
No. He can’t think about that.
His hand lifts apart the other’s soft cheek to expose a perky little hole that looks like it could swallow his cock whole with some effort.
He gives a bit too hard of a thrust into the other’s thighs and shakes Izuku slightly. Denki stills. He waits with his cock buried between the other’s thighs and ass lifted apart to expose his hole to the cool air between them. A few moments pass and Denki accepts that he didn’t wake the other up. Slowly he presses back fully between the other’s thighs and lets out a whimper of need, eyes trained on the other’s hole. He needs it. He needs to be in there more than he needs air. He can’t help but buck into Izuku, shaking him again but not stopping to make sure he stays asleep.
By luck, somehow he does, letting out his little snore into the deadly quiet room, the only other sounds being the sound of Denki’s shaking breath and groans that he is trying hard not to let out.
It’s not enough. He’s already gone so fucking far, but his eyes can’t leave the perky little hole that is just begging for a cock. His thumb presses lightly over it, loving the elasticity he can feel as it barely keeps his thumb out from Izuku’s warm insides.
“Fuck...” Denki mumbles. He knows what he has to do. He knows exactly what he needs and that he won't be able to sleep until he gets it. Denki needs to be inside of Izuku. He needs to be truly inside of him. Not just between his thighs. No. Fuck it. He’s going for it.
His cock slides out from between the other’s thighs, leaving a trail of pre-cum coating them. He sucks in a breath, hating the loss of pleasure, but he does his best to ignore it, leaning over Izuku and quietly searching through his drawers. An All Might dream journal. Some pens. Gum. Sleep mask. Nothing of use to him.
As soon as he opens the second drawer he pauses to process what he sees, several toys. Mostly egg shaped. He doesn't have enough fucks in his mind to unpack this and grabs for the lube. It's cheap, but he knows the brand. It’ll work more than well enough. Sitting up on his side of the single bed, he coats his fingers in maybe a bit too much lube, overestimating how much he would need. More is better though, right? Maybe?
The moment he pushes at the other’s rim with a single finger, he watches as it slowly sinks in with minimal effort. He can’t help but grab at his cock with his free hand, lube bottle laying between them, rolled up against Izuku’s back. He slowly pushes a second finger in, amazed at how well it sinks, yet Izuku feels so tight around them. He lets out a groan into the night air, pushing those fingers as deep as they would go before flexing them in the other. He’s never done this before. He can only remember what he’s read in his favorite doujinshi. His fingers press out in a scissoring motion, being pulled out as they fight the tightness. He can’t help but squirm when he watches how they come out, straining the other’s hole as wide as they can. After a few times repeating this he concludes that Izuku has the perfect ass. Caked, freckled, and waiting for his cock.
He doesn't care about the risks anymore. No. This stopped when he sunk the first finger in. It was too perfect. How did Izuku fall asleep so easily with Denki behind him if he knew he had such a perfect ass? How could he taunt Denki every day in the workout room? He must know how his pants hold his thighs to show exactly how thick and soft they are. If Denki really thinks about it, this is the obvious thing to do. The right thing. Izuku’s ass is his for the taking.
If Izuku slept through this, then maybe he won't wake up during the next act. Izuku is carefully rolled onto his stomach, shirt lifted so that Denki can appreciate his speckled back. Denki straddles the other’s thighs, biting his own bottom lip and grabbing the lube again and coating himself thick with lube, not wanting to harm Izuku in the slightest.He doesn't have the biggest cock in the world, but he likes to think of it on the larger end of average if not just slightly above average. It might not impress someone, but it will more than get the job done.
Carefully, he pulls apart Izuku’s soft cheeks and watches how the hole waiting for him twitches as the cooler air in the room. Denki has to take a few deep breaths to prepare himself. This almost doesn't feel real. It feels too perfect. He slowly strokes his own cock, making sure it's coated as well as possible with the lube before tossing the bottle onto the floor. It's small enough that it barely makes a sound when it lands. Denki wasn’t thinking as thoroughly as he had been before. Not that he has been thinking all that clear in the first place. He’s at the point of no return. He lines his cock up to the other’s hole, sucking in a sharp breath as his sensitive tip feels the warmth waiting for it. He almost came too easily when fucking the other’s thighs. He has to focus on not pushing in too fast. He wants and needs to take his time with this. His cock twitches with excitement in his hand just before he begins to push forward, letting his thumb help slip the head into the other.
He can’t stop the soft, trembling moan that sinks from his lips when he finally feels the other orifice almost greedily suck him in. It’s warm. Hot even. Not too hot, but hot enough to get him to close his eyes and focus on how fucking good it feels while the head of his cock is engulfed by the hole that had been all but begging him to take matters into his own hands.
It’s almost funny. Denki pauses with the tip of his cock fully sheathed in the other. From his periphery he can spot the open drawer where he found the lube that now lays alone on the floor. No wonder Izuku can take him so easily. Denki would be blushing if he wasn’t already flush with need. There are toys of all shapes and sizes tucked under a bunch of egg shaped silicone toys. Sweet little Izuku has a few kinks that Denki himself hasn’t even thought of it seems.
A size queen. Denki bites his bottom lip yet again, though slightly too hard this time. He can taste a faint iron. Letting go of his lip he finally leans forward, arms braced on either side of the sleeping form as he plunges fully inside, cock buried in the form who suddenly let out a gasp as sharp as a professional chef's knife.
Denki was too blissed out to notice how Izuku awoke. The green haired boy was frozen for a moment, processing his position, and when Denki groaned and pulled halfway out before thrusting right back into, Izuku let out a surprised yelp. This got Denki’s attention.
They both still, each waiting for the other to make a move. The dread that suddenly fills Denki is strong and leads him to speak up first, cock still buried in the other’s ass.
“U-Uh… I uh, maybe shouldn’t have done that.” It was a dumb thing to say, but that’s all Denki can give right now, hoping to at the very least not get the fuck beaten out of him. He hangs his head low, eyes wide as he watches the fabric shift of Izuku’s scrunched up shirt.
Izuku slowly props his front half up on his own elbows, feeling Denki sit up and start to slowly pull out. Denki doesn't get to do so. Izuku lifts his legs, pressing Denki’s back so he stays slotted in Izuku. Izuku gives a soft moan as Denki sinks back into him and smirks back at Denki.
“God, you really built me up, didn’t you?” He can feel it. His own hard cock aches for release under him. He finally has cock in him. Real cock. Something he hasn’t felt in a long long time.
“Fuck me, Denki. Please don’t back down from what you started.” Izuku has such a sultry look in his eyes and a predatory smirk. Denki fears he may suffocate under such an arousing gaze.
He’s in shock until Izuku whines and shifts under him. “Fuck me. Don’t make me wait so long, Denki.”
Denki can’t just back away from the hottest thing that's ever happened to him in his life. Izuku wants him to pound into his guts at his heart's content from what it seems, and Denki isn’t going to let him down.
Denki pulls most the way out before giving a single hard thrust inside, adoring the ‘pap’ sound his groin made against Izuku’s ass cheeks. Not only was that sound wonderful, the high pitched moan Izuku let out was the single most beautiful sound he has ever heard.
Without waiting, he begins to pound into Izuku. It’s not gentle, or careful, yet it's everything they both need. Denki pants and groans as he listens to the music of Izuku’s voice. Izuku didn’t think that Denki would ever just go for it like this and wake him up with sex. They aren't even dating! He’s sure Denki was a virgin too. Somehow he seems to know how Izuku likes it though. He’s pounding into him like a wild animal. There are no thoughts in Denki’s head. The only thing he is focusing on is how good he feels. He’s trying to fuck Izuku as best he can, but he’s inexperianced. He’s very new to this, but it is wonderful for both of them. Izuku loves the pressure of Denki supporting himself by sitting on his thighs.
As Izuku is focusing on the feeling of a real cock pounding into his guts, he’s surprised by a hand that digs into his hair. Before he can realize it, his hair is being pulled and he’s cumming underneath himself, coating the bed and his thighs thickly with white. He pulses around Denki, and Denki is realizing vaguely that Izuku came. He doesn't slow down though. He just lets an extra guttural groan out as he shifts his angle, and without realizing it he’s hitting Izuku’s special spot.
Izuku sees only white. His moans turn into silent screams, hands grabbing at a pillow and pulling it to tuck under his chest and head. Instead of screaming for him to stop or slow down, Izuku is screaming to the high heaven’s, “More! More! Fuck! Denki! Harder!”
He gets his wish as Denki leans in and buries his face in the other’s neck, hand still gripping and pulling at his hair. He has a better angle, clearly jackhammering Izuku’s prostate as the other’s cries of pleasure almost certainly wake the whole dorm up.
Denki knows he’s going to cum soon. He wavers in and out of his peak, nearly cumming inside of the other, but he needs to last as long as possible. He needs this. He’s going to cum when he is finished with Izuku. Not any sooner.
Izuku isn’t sure how Denki is still going, but he is more than sure that this will never be their only encounter. He’s getting this again even if he has to beg for it on his hands and knees. Izuku isn’t used to not working for his cock. He’s not used to just taking it, but holy shit he thinks it might be the only way he wants it from down on. Denki is mouthing and moaning into his neck, and Izuku can’t help but let a hand grip onto Denki's hair to keep him there. His own hand shakes in the blond’s hair, trembling as his body is pushed through overwhelming pleasure. He almost can’t grip, but Denki’s hair is surprisingly thick, allowing for an easier grasp.
Denki lets himself bite down on the other’s neck, adoring how Izuku took every single thrust through overstimulation with no complaint. It's more than clear that Izuku enjoys it. It’s perfect for the both of them. He can feel the vibrations of Izuku’s cries through his skin. He licks and kisses the bite, knowing he wont be able to hold out much longer. He has to make Izuku cum again. That's something he is guaranteeing to himself will happen before he paints the other’s guts white.
There is pounding on the wall from Aoyama’s side and some French cursing, but they don’t realize it. It’s much too loud for either of them to hear, and with how Denki is still making Izuku scream, neither of them care.
Not many words had been exchanged between the two, but Denki knew what Izuku wanted, and he was more than willing to give it to him. As he felt Izuku tense up again, he knew the other was cumming, even more white being added to the new stain in the sheets.
“F-Fuck, Zuku!” Denki tossed his own head back, hips snapping and stuttering as he came deep inside of the other, barely able to focus enough to suck in a breath so he didn't suffocate.
His hand loosens in Izuku’s hair, letting go as the other slowly lays his head down on the pillow he is holding. His own hand falls from Denki’s hair and bounces on the bed next to the pillow. Denki lets out a single, long and loud groan as he keeps himself inside of Denki as his cock softens in his white mess that coats the insides of his friend.
“Holy shit, Denki.” Izuku hummed in a happy tune. “That was so good. You fucked me so well, Denki.” The praise from Midoriya filled his chest. Denki lays a kiss on the other’s shoulder, allowing himself to take his time and adore the other’s shoulder freckles.
“Mmmm~ Your ass ate my cock up so fucking good, Zu.” Denki hummed and let a hand slowly rub up the other’s back, soothing the other as best he could. How Izuku was okay with what just happened was a mystery to Denki. One that he is perfectly fine not poking at.
“Mhm~” Izuku looked behind himself and chuckled. “Wanna pull outa my ass now?”
Denki looked to the side with some embarrassment as he slowly pulled out, cum coating his soft cock. He began to pull his pants back up, but before he knew it, the other was pushing Denki to lay down on the bed, straddling his lap, his own pants no longer around his calves, but on the floor. He sits in the other’s lap, his own coated with cum. Izuku can’t help but grin, thighs still slightly trembling as he sits. His hands run up the other’s bare chest before he lifts his shirt fully off.
“Oh, did you think we were done?” Izuku’s smirk was even more predatory than before. It was like he planned this. Of course he hadn’t actually planned it, but he was taking the opportunity in front of him to do as he pleased.
Izuku loved how the confidence that Denki had wavered in place of aroused surprise.
Trailing two fingers up Denki’s chest, the freckled boy chuckled and cupped the other’s chin.
“Have you ever had anything in your ass?”
Denki nodded, but the hesitation had Izuku ask, “And what was that?”
Denki swallowed hard, intimidated by the sexy guy on his lap who was leaking his cum in the blond’s own lap.
“A thin p-pink vibrator I stole from the mall.”
Izuku’s predatory grin turned deeply lustful. He let out a soft chuckle and spoke sickeningly sweetly, “I am going to enjoy breaking you.”
A dart of exciting fear ran through Denki’s spine and raised goosebumps on the back of his neck. Without thinking he began to quickly nod.
“Y-Yes please!”
Izuku cupped the other’s cheeks and leaned in, kissing the other with a passion Denki was too scatterbrained to process at first. He could feel his own cock swelling back to full mast which surprised him. He’s never cum more than once when he masturbates, but Izuku got his interest back so easily. He can’t help but kiss the other back just as fervently. Hands slide up Izuku’s sides, taking a bit of time to take in how soft the other was. Denki can’t help but let out a little sound of need in the other’s mouth.
“Fuck me.” Denki mumbles onto the other’s lips. “Fuck me, please. I wanna feel good with you again.”
In response he hears a soft, “Of course.” Mumbled onto his lips. It sends a wonderful thrill through him to feel Izuku move and spread Denki’s legs. Denki pulls their lips apart to tell him,
“I tossed the lube somewhere over-” There is a finger on his lips to quiet him. Slowly the finger shifts to push into his mouth, making Denki gently suckle on it reflexively.
“Shhh~ Don’t worry about that. We have everything we need.” Denki doesn't realize what the other means until Izuku reaches back to gather some of the cum dripping down the back of his thighs with a scooped hand before bringing the cum to Denki’s hole and coating his rim with it. Denki doesn't speak up. He just suckles the other’s finger and the second one that joins it as Izuku coats his own cock with the leftover cum.
When Izuku lines up and starts to prod into the other with his tip, Denki pulls his head away to get the fingers out of his mouth. “W-Wait. Shouldn’t I be stretched for this?”
He doesn't get any reply other than a chuckle and lips on his own, taking him into another kiss. As he relaxes and wraps his arms around the other’s neck he can feel it. Izuku is pressing slowly into him. It's a bigger stretch than he thought he could take, but the head of the other’s cock slides in and Denki lets out a whine on the other’s lips. It aches ever so slightly, but overall he’s loving the experience. Izuku can’t help but push his tongue into the other’s mouth, encouraging the other to kiss back just as deeply.
As he feels the other slowly sink to his hilt, Denki shutters and gasps in the other’s mouth. His toes curl and pull at the sheets under him. He can feel the mess he’s laying on, and overall he thinks this is the perfect night. Izuku is giving small experimental thrusts into him, seeming to look for something. Denki knows what he’s looking for. He’s a bit surprised the other is trying to find his prostate so soon, but as soon as the other’s tip brushes against it and he jumps slightly, he resolves to let Izuku do anything he wants with him. If how he took it was so good, then maybe he gives it just as good.
There is a pause. Denki wonders why Izuku is no longer moving after finally finding his spot, but when Izuku gives a sudden snap into him, he lets out a yell into the other’s mouth. Izuku stays buried in Denki, watching as Denki writhes under him slowly, processing that little surprise.
Izuku pulls his lips from the other, a strand of saliva breaking between them after it tried so hard to keep them connected. “Relax, Denki. I know what I’m doing.”
He never doubted Izuku. Denki was just surprised. He then realizes Izuku hasn’t made a move since then and is still buried inside of him. He opens his mouth to ask him to keep going, but that’s when Izuku shushed him and began to gently fuck him, kissing up his jawline and telling him, “You are so much prettier than you give yourself credit for. I can’t wait to see you cry.”
The ominous feeling from those words worked to twist Denki’s guts wonderfully with anticipation. He could feel the build of pleasure slowly growing. He knew he didn’t have to say anything as Izuku took his time. He just had to wait. He could see it in Izuku’s eyes. Izuku was watching Denki’s lips until now. When their eyes met, Izuku set a suddenly brutal pace. Denki had worried he would burst from anticipation before this, but finally he was getting what he had hoped for.
His mouth dropped open and he gave some of the most ungodly sounds anyone in the dorms has ever heard until now. The banging on Aoyama’s joint wall started again. The two noticed this time but just didn’t care. Denki wrapped his legs around the other as Izuku wrapped his arms under Denki’s thighs and lifted him up. He now fucks up into Denki while bouncing him on his cock. Denki had no control. Denki can’t find the bed and can’t even find which way is up as Izuku bounces him hard on his cock.
It's around now when Denki realizes why and how it feels like his insides are being turned into a fine powder. He can see the green lightning shapes that manifest around Izuku when he’s using his quirk. His heart is pounding as he screams louder than Izuku. He never thought he would be so vocal. He didn’t think it was that possible really. He had thought people just fake screamed in porn and stuff, but here he is, being demolished on his buddy’s quirk activated cock.
Denki’s own pretty face is littered with tears as he is cock punched in the guts. He didn’t exactly expect this outcome when he had his dick between Izuku’s plush thighs. He’s more than happy with it at this point though.
Izuku can feel himself coming close. He knows he can cum three times tonight, but probably not four. No. Not tonight.
“Come on, Denks. Come on, baby. Cum for me. Cum for me, Denki.”
He knew that would work. Denki’s previously inexperienced hole clenches as Denki tenses, cumming harder than ever before, cock coating both of their stomachs in ropes of hot cum as Denki claws into the other’s back, eyes rolled up and tongue hanging from his mouth as he is fucked through an orgasm until he’s squirming and shaking.
He’s laid back on the bed, but his hips are being held up as Izuku fucks into him past Denki’s orgasm, loving how Denki writhes and cries under him before gasping at the feeling of his guts being filled with white. He slowly stops squirming as Izuku’s hips stutter. He pants hotly and looks up at Izuku with a dazed look. He almost gets a word out, but it seems to be a garbled groan.
As Denki passes out, Izuku runs a hand through his own sweaty hair, watching as he pulls out of Denki and lowers his lower half to the bed. He stretches his arms up and lets his back crack. Aoyama is still banging on the wall, even throwing a few things. Something about needing his beauty sleep. Izuku wishes he had the energy to care. He’s just surprised Iida or Aizawa haven't come over to scold him. They probably want nothing to do with the situation though.
Good. Denki is his.
Izuku knows he should get up and get a cloth to wipe Denki down with, but he knows his legs won't support him if he tries walking, so instead he just lays down with Denki and kisses the sleeping blond’s cheek.
With a hum, Izuku pulls Denki to his chest and asks the unconscious boy, “Did you learn a lesson?”