Archive of Our Own ^beta

There's a couple of things Serizawa's realized about Reigen after being in a committed relationship with him for the past 5 months. Well, he’s realized more than a couple, but listing them all would take a literal lifetime on Serizawa’s part. He could start with how Reigen likes to sleep sprawled across the entirety of the bed, something that doesn’t change when he’s sleeping with someone else. Or he could illustrate how Reigen likes to talk with his mouth full, and sometimes, he’ll start laughing so hard that whatever he’d been shoveling down his gullet starts spurting out his nose. Neither of those compares to the real source of Serizawa's current torment though: the fact that Reigen, in the purest sense, is a naturally messy person. The other man isn’t anywhere near how bad Serizawa was when he lived at his mother’s, but certainly bad enough for Serizawa to be hyperaware of his habits at this point. The Esper’s suffered as he’s observed Reigen’s hurricane mess at the office, at the conman’s apartment, and as of 4 months ago, at Serizawa’s place. Reigen had probably stayed over only a handful of times at this point, yet somehow, he’s already left about what looks like half of his closet spewed across Serizawa’s usually tidy bedroom. It was especially bad tonight, since the last time Reigen had slept over, he'd dumped some laundry he'd hidden at the office. Apparently, it was easier to leave here rather than drag the entire way home, Reigen using Serizawa's apartment as the halfway point. 

It’d been just his luck that as soon as Reigen had dropped the bag in Serizawa’s room, it’d burst open, spewing its contents across his floor. Reigen hadn’t even tried to pick it up, merely bulldozering it into a pile against the box spring of Serizawa’s bed, before plopping down onto its surface and passing right out. The clothes are what Serizawa’s been glaring down with his hands planted firmly on his hips for the past ten minutes, looking sorely irritated by its presence. He’d completely forgotten it was here after the buzz of the workday, and rediscovering its existence isn’t exactly exciting for the man. Most of it seems to be comprised of the same white undershirts, the Esper recognizing them as the ones Reigen wore underneath his button-ups. His boyfriend seems to have an endless supply of them, all from the same cheap brand bought in bulk. Serizawa was reasonably sure that Reigen actually bought more of them instead of doing his laundry sometimes, putting the chore off for as long as humanly possible. Which of course, just meant he had even more clothes to make a mess with in the future. Really, it was like a never-ending cycle at this point.  

Serizawa can’t help but release a sigh as he crouches, plucking one of the shirts from the top of the impressive mound. The fabric stinks of Reigen, the scent wafting up to the Esper’s nose and forcing him to sink his teeth into the inside of his cheek. It’s strong enough that he feels like the other man is standing right next to him, hovering over his shoulder with a stupid Cheshire-like grin. The idea is enough to send a pang of want through his gut, and the irritation fades as he grips the shirt a bit tighter. God, it’s embarrassing how badly he craves Reigen’s presence. Even with how annoyed Serizawa is at him, he wishes more than anything that Reigen was actually here, so he could love him, touch him—just experience him. It hasn’t even been that long since he last saw the other, but he already misses him so much. He’s horribly addictive, and Serizawa's more than hooked at this point. Everything about Reigen seems to hit all the right spots inside of Serizawa, and the man’s dug himself a nice, conman-shaped hole in the Esper’s heart—a gap that most likely would be there for the rest of his life. Beyond the love though, there’s something else stirring inside of the Esper’s body. A distinct twinge of arousal pulls at the back of his throat, and his dick gives an interested twitch in his gray sweatpants. That alone is enough to force a flush to Serizawa’s cheeks, pulling the shirt away from his face quickly and looking away in shame. He feels dirty, sniffing his boyfriend’s dirty laundry. But, at the same time… his craving for Reigen is too intense for him to ignore. Plus, Serizawa reminds himself quietly, he doubts Reigen would have even a second of a doubt when it came to masturbating with something of Serizawa’s. He even bets the conman’s done it before, and the idea makes his dick give a second, stronger twitch.

"Guess it's been a while since I've had some ‘me time,'" Serizawa mumbles, considering his growing boner with steadily fading embarrassment, “I’m sure you’d love if I jerked off, huh little guy?” 

Before joining Claw, Serizawa had practically been a serial masturbator. There really hadn't been much to do in his room beyond playing video games, browsing the web, and jerking off. The number of tissues that'd piled by his bed from cleaning himself up post-orgasm had been absolutely shameful, a mountain of crusty old jizz, a monument to Serizawa's habits that he rebuilt over and over. The few times his mother had crept into his room to clean up a bit had been absolutely horrific for Serizawa, turning completely red and ducking his head as he attempted to hide from her judgmental gaze. It was the same look she gave him whenever she’d passed him packages he’d started ordering after he turned 18, using a credit card to purchase copious amounts of sex toys. By the time he left at 27, he’d amassed a small army, a collection that would make any porn star green with envy, consisting of fleshlights, dildos, vibrators… really, anything you could think of, Serizawa probably owned. But, after joining Claw, the habit had died off, Serizawa simply too busy to fulfill his body’s needs. That’d only continued after he’d joined Spirits and Such and began attending school again, mind focusing on everything else but his body. Though, after he’d started to date Reigen, Serizawa had definitely noticed a definite spike. The conman sparks something in the Esper that just makes his need to jerk off skyrocket into alarming levels. 

Case and point, popping a boner from smelling his sweaty laundry.

Mind made up about the evening's activities, Serizawa allows his eyes to flutter shut, unable to stop himself from bracing as he slowly brings the shirt back to his nose. This time, he holds it even closer, taking a deep inhale of his boyfriend’s rich scent and shuddering intensely as it flows through him. The smell of sweat is layered on top the crisp, vaguely spicy scent that Reigen emits, and it’s all Serizawa needs to bring him spiraling back to the last time the other had sucked him off. Images of Reigen between his thighs flash behind his eyelids with extreme clarity, mind conjuring his hand resting on his knee, as the other curled around the portion of his cock that wasn't already sliding back and forth past pink lips. He'd looked up through his lashes to lock onto Serizawa's face, merely taking in the Esper's expression as he expertly worked his cock. It’d been one of the hotter things Serizawa had seen in his life, and it’d forced him to bite his tongue to stop himself from whimpering or his face twisting into something embarrassing. It’d quickly devolved though, and soon enough, his mouth had fallen open, and his head had fallen back as pleasure wrecked him. His hands had flown down to Reigen’s hair seconds later, holding on to dear life and pressing as deep as humanly possible as he came. Reigen had swallowed it all down without even flinching, a glint in his eyes exposing just how much he was loving wrecking Serizawa. Afterward, Serizawa had returned the favor, a lot messier and with quite a bit more drool and choking, but it’d been no less appreciated by his boyfriend. Apparently, ‘he looked best with a cock thrust past his lips, and any second there wasn’t one shoved in there was an absolute shame’ according to Reigen.

By the time Serizawa finally pulls the garment away from his face, his cock is fully hard in his sweats. It throbs painfully, practically begging Serizawa to take care of it, and the Esper is in no place to deny it. Placing Reigen’s shirt on his bed for the time being, Serizawa turns and steps awkwardly over to his dresser, mindful of his erection. He crouches down in front of it with a little creek of his knees, sliding the bottom drawer wide open and exposing a large assortment of sex toys. It looked more like a selection that’d be under a glass case in a higher-end sex shop, neatly organized by increasing size by none other than Serizawa himself.

Right now, the Esper considers three items: a fleshlight consisting of a clear plastic case that surrounds electric blue silicone, a black prostate massager that doubled as a vibrator, and finally, a bottle of water-based lube that was half empty. He plucks them all from their resting places, tucking the toys under his arm before shifting to open the next drawer up, snatching one of his towels to lay out under his ass. He’d rather keep his bed from turning into a sticky mess from lube and cum, thank you very much.

Standing, Serizawa walks back to the bed, taking the time to properly lay out the towel on the spot where his ass would be resting soon, folding it in half to ensure maximum protection. The toy’s get messily lined up next to it in the best straight-line Serizawa can manage in his need, before he’s quickly ducking out of his bedroom and into the bathroom across the hall. In rapid succession, the Esper strips his sweats, briefs, and shirt off, tossing them into his dirty hamper by his shower. His dick slaps against the curve of his belly once its freed, aching a little from how hard Serizawa was. That’s not why he’d ducked into the bathroom though—an unfortunate fact about anal play was the definite need to douche beforehand. As uncomfortable as the process was though, Serizawa had become an expert at it, and after retrieving the douche from under his sink, it barely takes him any time at all to clean himself thoroughly. He’s careful to wash his hands afterward with plenty of hot water and soap, before darting back across the hall (absolutely buck naked, cock waving in the air) into his room. As soon as the doors closed behind him, he’s flicking the lock, still unable to shake the habit that persisted from when he’d lived with his mother. He’d learned at a young age that leaving his door unlocked just signaled figurative death for him, starting to lock it religiously after the first couple times his mom had walked in on him having his… special personal time.

With a whoosh of air from his lungs, Serizawa flops down onto his bed, careful not to land on his toys or lube as he makes himself comfortable along its surface. Once he finds a position against his pillows that doesn’t seem like it’ll end up with him suffering from a sore lower back the next morning, he reaches for the prostate massager. It’s about the girth of two of Serizawa’s fingers, tapering down to the thickness of only one. The toy is small enough that it thankfully doesn’t really need any prep for Serizawa to slide inside, and the man doesn’t bother to finger himself as he takes the lube and spreads a generous amount along the head, watching the viscous liquid slowly slide down its length. It’s a little mesmerizing, and it takes a shake of his head to rip his attention away from it, quickly using his hand to spread the lube over the rest of the massager. With that complete, Serizawa spreads his legs a little further apart, pressing the tip of the toy against his hole. He flushes at how easily it slips in, barely encountering any resistance as it sinks inch by inch into him, before settling against his taint with a comfortable stretch. The tapered and comes to rest against his prostate as designed, and even off, the sensation is enough to make Serizawa shiver. He doesn’t even turn it on just yet, unable to stop himself from merely shifting a little side to side to feel it move inside his ass.

As he allows himself to adjust to the massager, the man grabs the fleshlight. For the second time, he takes the lube, pressing the nozzle into the hole for his dick and squeezing a healthy amount into the toy. He’d learned his lesson after his very first fleshlight that over lubing was better than under lubing, the chaffing not worth the orgasm. The bottle is capped once more, Serizawa glowing purple momentarily as he uses his powers to whip it back into his dresser, simultaneously bringing Reigen’s shirt into his open hand. As soon as his fingers close around the fabric, Serizawa’s shoving his nose in it, inhaling Reigen’s scent in deeply. Like before, a rush of memories assaults his mind, his brain immediately conjuring various sultry images of Reigen. Serizawa’s unable to stop himself from groaning as past sensations and feelings wash over him, eyes fluttering shut and slowly pressing the head of his dick against the cool entrance of the fleshlight. He doesn’t thrust into it at first, simply testing the rim with his tip, before taking a deep breath and increasing the pressure behind his cock. Seconds later, it sinks in, making an incredibly embarrassing slick, wet noise as inch by inch he buried himself inside. The ridges against his hard flesh are like heaven, and his foreskin is pushed back along his head to bunch along his shaft, exposing the sensitive glans to the interior of the toy. 

Serizawa keeps going and going with the fleshlight until finally, it meets his pubic hair, legs trembling a little bit as he adjusts to the pressure around him. It feels fantastic, and it’s enough to force him to clench up on the massager, the action barely nudging it against his prostate. The sensation is so good that he can’t help but do it again, teeth catching his bottom lip as he teases it along the sensitive gland. It’s not hard for Serizawa to imagine it was Reigen’s fingers instead, his mouth around his dick and blowing the Esper with a frightening amount of skill. Or god, that it's his cock buried in Reigen’s ass while a toy rested inside of him, the conman riding his partner like his life depended on it. He didn’t even try to hold back, completely inhibited by the things that’d have Serizawa clinging to his partner in embarrassment, face buried in his shoulder. He was getting better with it, but his first instinct was still to hide, instinctually covering himself from view. Reigen had even started forcing Serizawa’s arms to either side of his body, slowly pushing the Esper closer and closer to being comfortable with being observed while being so vulnerable. Serizawa loves being taken care of—loves Reigen telling him how good he’s doing, loves being showered with compliments, loves how his boyfriend makes sure he feels like the only person in the world—but for some reason whenever he thought about Reigen watching him while he did any of that was… well. It was terrifying.

Unable to resist any longer, Serizawa awkwardly reaches down between his legs past his cock, fumbling for the button along the massager that’d start the vibrations. It takes him an almost embarrassing amount of time to find it, finally pressing it with a soft click, and the toy begins to pulsate inside of the Esper. He doesn’t even wait to adjust to the buzz that’d come alive in his gut, quickly pressing the button a couple of times in quick succession, turning the toy to the highest setting. The vibrations are strong enough that it’s almost too much for Serizawa to handle, panting heavily as pleasure shakes through his bones. He somehow manages enough conscious control over himself to start fucking the fleshlight, gripping it tightly in one hand as he continues to breathe in his boyfriend’s scent. 

“A-Arataka,” he gasps out, “feels so good, feels so fucking good—”

Already, his rhythm is beginning to break down, the simultaneous stimulation to his cock and prostate combined with Reigen’s scent incredibly overwhelming. Serizawa’s not even imagining past encounters with Reigen anymore, instead only seeing the other man in his mind’s eye, grinning at him with that stupid look in his eyes. Sweat drips down his face, his hair sticks to his forehead, the heat in his gut stoked higher and higher. His orgasm is so close, that precipice looming—and with a sob of his boyfriend’s name, he comes, releasing deep into the fleshlight. It doesn’t take long for cum to start pooling around the base of his dick, forming a sticky mess with the lube.

“Now, this isn’t a surprise I expected.”

Serizawa jolts at the sound of Reigen’s voice, his orgasm rudely erupted, sitting up so fast that his hand accidentally whips the fleshlight off of his dick and sending it flying at the same time. He hasn’t even stopped cumming, the last of it spurting onto his belly and looking like someone had spread the contents of a toaster-strudel frosting over him. They're surprisingly reasonably parallel to the stripes of stretch-marks that line his lower gut, though still stand out obviously with the amount of hair coating him. The fleshlight itself hits the wall with a disgusting, wet smack, leaving a little mark along the pain before landing on the carpet and immediately beginning to a cum/lube mixture onto it. Reigen himself is standing in Serizawa's somehow unlocked door with his arms crossed over his chest smugly, the Esper not noticing amid his pleasure that his boyfriend had arrived.

“I… I locked the door?”

Serizawa’s voice wavers. Honestly, he’s in shock. He doesn’t know what to do. This isn’t something that’s happened to him since he was a teen, and he certainly never had the person he was jerking off to appear like this. God, Serizawa’s still even holding his shirt! What should he do? Toss the shirt too? Cover his cum-covered dick or the massager that's continuing to go off in his ass? 

“What, do you think I don’t know how to pick a lock, Katsuya? Shame on you.”

Reigen steps forward, humming as he shuts the door behind him.

“I thought I’d be the one to surprise you by coming over—I didn’t think I’d be treated to such a delicious sight! I’ve never seen you so… open with your orgasm. Super. Hot. I’m a little jealous I haven’t been able to get an orgasm face like that out of you before. And beyond that…” his eyes drag over the entirety of Serizawa’s naked form from head to toe, licking his lips, “you look so incredible naked. But I’ve already said that before. A lot, actually. And repeatedly.”

Despite how flustered he is, Serizawa still manages to hone in on the bulge in Reigen’s slacks as he begins to walk over to the bed. The fact that he’d been the one to do that to the other man isn’t lost on Serizawa at all, and pride wells up behind his embarrassment like an unstoppable force, the Esper quickly biting his bottom lip to stop himself from smiling like an idiot. Fundamentally, he knew that Reigen was attracted to him. The man had been entirely honest about that from the very start of their courting. But, it was always another thing to see hard, physical proof of that. Pun intended. 

“How about I clean you up a bit and we have some fun together? Instead of just… sniffing my dirty clothes.” Reigen reaches forward, plucking the shirt from Serizawa’s hands and holding it away from his body, arching a brow. “Really, you should’ve gone for a pair of my briefs rather than a shirt. Stinks way more like me. Plus, it would’ve been fairer, since I’ve jerked off multiple times while smelling your underwear.”

“Wait, what?”

Reigen completely ignores the question, instead kneeling on the bed and reaching between Serizawa’s legs. The Esper’s unable to stop him as he pushes on it, smirking at the little keen that Serizawa emits, oversensitive still. The noise only grows louder as Reigen leans forward, licking a stripe along his half-hard dick. It’s already twitching again in interest, recovering quickly from its master's orgasm in the presence of Reigen, the object of its desires.   

“C’mon, I’ll show you some of the crazy shit I figured out you can do with one of these massagers.”

Well, fuck. Literally.