Archive of Our Own

Katsuki spills into his bed, limbs heavy from a full day’s work. Goddamn, criminals sure don’t like to make things easy for him. Not only were these particular ones difficult to deal with, but hauling ass and chasing them all across the city was fucking time-consuming. Katsuki had thought that once he graduated to adulthood these petty games of ‘hide and seek’ would be over and done with, but apparently not. And they had alerted the Pro-Hero agency of their presence at the worst possible time.

Katsuki had barely even had time to use up ten minutes of his appointed thirty-minute lunch break— which by law he was fully entitled to— when they received the call. These criminals had not only broken the federal law, but also Katsuki’s legally appointed thirty-minute break. The fucking audacity. It was damn lucky he had only brought one sandwich with him to consume else he would have really brought the wrath. It sure felt good throwing the assholes into the holding cell for the next Pro-Hero on shift to deal with, but damn, was Katsuki exhausted.

He turns onto his back and lets out a drawn-out groan. He really should find time for a massage. It would do him wonders having some of the kinks in his back worked out. Just as he’s drifting off into a peaceful state of mind, the creaking sound from beyond the wall slowly starts up. Katsuki heaves a sigh. Not again.

Ever since his last neighbour, an eighty-something year old woman who always minded her own business, moved out, Katsuki has had nothing but incessant disturbances from his new neighbour. He’s unsure if it’s still ongoing during the day, but he knows for certain it happens at night. When Katsuki’s in his bedroom, slumber softly pulling at his consciousness, that’s when the goddamn squeaking starts up. It’s infuriating. The neighbour is always trying to get busy at ass o’clock at night when Katsuki needs his beauty sleep the most, and it’s driving him up the fucking wall. And he knows it’s just the neighbour all on their own as he’s never heard any other voices. So not only is his new neighbour annoying, they’re pathetic to boot.

Katsuki bangs his fist on the wall several times. The noise instantly dies down. Damn right. Katsuki mutters out a string of curses before tossing back on his side, pushing his anger aside in favour of sweet sleep taking him away.

*

The next day Katsuki is shuffling into his building after a rather intense workout session at the gym. It had been leg day, but considering he’d technically already vigorously exercised them the previous day courtesy of the idiot criminals, he’d decided to focus on his arms. He wasn’t sure if he was still sore from the day before, but for some reason the workout had really strained him. Seriously, he needed to schedule a massage appointment before his body grew too stiff.

He decides to check his post before heading upstairs to his flat, when he spots another person already standing at the post slots. His jaw ticks with annoyance. Why are people always present? What a bunch of bastards. His irritation is short-lived, however, because as soon as he gets a proper look at the person he’s instantly head over heels in lust.

“Damn.” He hums, gaze travelling all over the guy’s tight body. And shit, is it tight, alright. “Didn’t know they made ‘em like you.”

The guy glances over at him, and wow, were those eyes green. “I’m sorry?”

“This.” Katsuki motions at all of the guy. “Is a very attractive package. Kudos to your parents.”

The guy gapes at the blond, clearly caught out. Katsuki doesn’t really have the energy to exchange pleasantries at the moment beyond what he’s already so generously given, so he sidesteps the guy and quickly peers into his own post slot. Nothing.

With a yawn, he bypasses the guy once more and lumbers upstairs. Mid-way up the first set of steps he turns around. The man is still gawking at him, green eyes wide and bright even from afar. Damn, he’s cute to boot. “You new here?”

It takes a second for the guy to register the question, but he does eventually give a nod.

Katsuki returns it with one of his own. “Welcome to the building.”

And with those parting words, he whirls right back around and continues to plod upstairs.

*

Another hard day at work, another evening where Katsuki stumbles home and makes straight for his bed. He should probably have something to eat first, but even the thought of making a simple sandwich drains his already tapped-out energy levels. He’s barely finished crawling under the duvet when the unbearable squeaking Katsuki knows too damn well permeates the thin wall. With what remaining bit of stamina he has left, Katsuki emits a sigh and slams his hand against the wall.

“Quit that shit.” He snarls.

He hears the distinct sound of his neighbour huffing, then the bedsprings giving a final groan as they leave the bed. He hears the audible slamming of a door echoing through to his room. Katsuki has to hold back a smile. Not his fault his neighbour doesn’t have the common decency to masturbate where no one can hear him.

He lays back onto his bed with a satisfied sigh, the quiet a welcome tool in helping him wash the day’s events off him. He waits for slumber to do its thing, take him by the hand and float him over into deep sleep. He waits. And waits. And waits.

Katsuki tosses in bed for the umpteenth time, frustration boiling. What the absolute fuck. He is exhausted, sapped of all his strength, begging for merciful release— seriously, there’s no two ways about it; he is fucking tired. He doesn’t understand why sleep is evading him. He’s got the basic components to make the formula work; a weary mind and a comfy bed. So where is the goddamn result?

His eyes flash to his phone charging on the nightstand. He taps its screen and sees that it’s already past midnight. Katsuki suddenly sits upright. This isn’t working.

He throws the duvet off him and slips his legs over the edge of the bed. If sleep won’t come to him, then he’s going to damn well go find it. He walks out to his kitchen and begins rifling through the cupboards. He knows warm milk is recommended to help with a good night’s sleep, but he only has so much left and plans on using that for his morning coffee. Instead, he grabs a tumbler, his half-empty bottle of whiskey, and a handful of chilli rice crackers. He begins snacking on the crackers as he pours out a generous dosage of the alcohol.

He’s just finished screwing the bottle closed when he catches sight of the outside. There’s nothing eye-catching about it, but he’s just sort of floored by how bright it is. Nights are supposed to be dark, shrouded in mystery and creepiness. But right now it looks rather inviting. Katsuki bets the moon is massive tonight. He purses his lips in thought. When was the last time he’d just looked at the stars?

The air outside is crisp. He feels it as soon as he steps out onto the balcony, and it’s only intensified by the coolness of the floor. Katsuki immediately slips on his outside slippers which give him a momentary reprieve from the cold. He should have dressed better for this, but he hadn’t exactly planned on coming out. He’s wearing nothing but his joggers and slippers, his chest open to the elements. Not that he minds too much. With him constantly running hot due to his job and Quirk, a bit of chill is welcome.

The night is astonishingly beautiful. It might be because Katsuki’s not really made time in a while to enjoy simple pleasures like night-gazing, or it might be because he’s a sappy fuck. It really could be either or. Katsuki takes a sip of his whiskey, the burn searing. His gaze travels across the sky, trailing over the blinking lights dotting the dark. He doesn’t know shit about the stars or constellations, but they sure do look pretty. He can still appreciate something he doesn’t understand. It’s just like art. Except modern art— that shit really was the worst.

His stargazing is interrupted when he hears a mumbled, “What on earth…”

Katsuki instantly seeks out the source, suddenly on high alert. His eyes land on someone on the balcony beside his own. Wait. Not someone. The Hottie.

“Well, well,” Katsuki announces, his good mood turning up several notches. “I didn’t realise we were neighbours.”

The guy stares at him for a moment longer, those goddamn green eyes somehow even more alluring in the night. Though it’s a bit difficult to see them properly with the specs he’s sporting.

“I wish I’d never found out.” The guy huffs eventually, diving back into the book in his hand. That would explain the glasses, Katsuki thinks. The guy came out here to read. At past midnight. That’s not weird.

His gaze lands on the small, circular table the guy is sat at. It holds a glasses case, a bookmark, and what looks to be a glass of water. Something clear, anyway. The guy himself is wearing simple boxers and a delicate robe draped over him. Katsuki can’t make out the colour in the dark, but it looks to be a dim shade. His hair is all mussed up, curls galore spilling over the side of his head, and he’s wearing a t-shirt with some scribbling across the chest. Katsuki tilts his head to the side in an attempt to decipher the messy writing.

The guy suddenly drops his book, shooting Katsuki a fierce glare. “Do you mind?”

“Not at all.” The blond replies, head still tilted.

The guy scoffs and lifts his book back up again, covering his entire face.

A heavy silence drapes over them, growing more severe as the seconds trickle by.

“Penny for your thoughts?” Katsuki prods eventually.

“How about a cool buck?” The guy replies, voice dripping with sarcasm.

Katsuki has to fake a cough to hide his cackling. “Someone’s moody.”

The guy suddenly jumps to his feet and strides across the balcony toward Katsuki, eyes ablaze. “You know you…” He trails off. The blond watches the emotions flit across the guy’s face before they settle on what appears to be resigned anger. The guy shakes his head with a twist to his lips. “You are just the worst.”

“Me?” Katsuki repeats faux indignantly. The guy is most definitely right, but Katsuki doesn’t think he really knows him well enough yet to have any right to say that.

“Yes, you! You’re just… infuriating.”

“I don’t even know what I’ve done.”

“You keep—“ The guy’s cheeks redden, and after an awkwardly long moment he averts his gaze. “You keep banging on my bedroom wall.”

Realisation hits just as Katsuki is having a sip of his drink. “Oh, shit.” He laughs, thumping at his chest where the whiskey almost collided with his breathing. “That’s right. I do do that. But only when you’re getting busy with yourself.” He points out, not adding that it happens almost every damn night.

“Yes.” The guy agrees in a clipped tone, slumping back to his table. “You do.”

Katsuki catches sight of him gathering up his things. He instinctively tries to stop it. “You, uh. You pent up?”

The guy meets his gaze and lazily drawls, “What gave me away?”

Katsuki has to hold back a chuckle. This guy is entertaining as hell.

“I could help.” He offers.

“Fuck off.” Is the instant reply.

“What, I’m not good enough for you?” Katsuki jokes, languidly straightening up to his full height.

The guy pauses and turns to the blond. He gestures at Katsuki’s body. “Looks-wise, you’re more than I deserve. Personality wise,” His gaze lands on Katsuki’s, something dark stirring in the depths of those green eyes. “You can eat shit and die.”

With that, the guy slams the balcony door shut behind him, leaving Katsuki all on his own.

The blond huffs out a laugh. “Someone’s real pent up.” He takes another swig of his whiskey, the burn that stains down his throat forcing a hiss out of him.

*

Now that Katsuki is aware of who his neighbour is, and with the added knowledge that the guy is both hot and easily peeved, he has taken to wishing their shared bedroom wall goodnight before he goes to sleep every night. And he means every night. If there’s one thing Katsuki recalls from his childhood bully days, it’s that nothing grinds someone’s gears more than repetition. Especially meaningless repetition.

Some days he’ll spice things up a bit and talk at the wall in the hopes of riling the guy up some other way. The guy. Right, he doesn’t even know the dude’s name.

Katsuki raps his knuckles against his bedroom wall and asks, “What’s your name?”

All he receives in response is silence.

“If you don’t give me a name, I’ll have to make one up for you.”

Further silence.

“Alright, then.” He takes a moment to think of a good name he can anoint the guy with, but ingenuity strikes sooner than expected. A wide grin splits across his face. “Got it. I’ll call you ‘Illegal’.”

The continued silence stretches over several moments until finally a faint voice queries, “Why ‘Illegal’?”

“I’m glad you asked.” The blond clears his throat. “‘Cause it’s got to be illegal to look that good.”

An unnerving long silence follows his joke, then Katsuki hears a stunned laugh. “God, you’re the worst.”

“It got you talking though.” He folds his arms behind his head. “So. You got a name?”

“Yeah.”

“Care to share it?”

“...Deku.”

Katsuki feels out the name on his tongue. Deku. He scowls. “Call it a gut feeling, but that’s not really your name, is it?”

“It’s my nickname.” Deku explains. “If you want to know my name so badly, why don’t you just check out the name on my mail slot?”

Katsuki had actually already thought of doing so, but ultimately decided against it. “‘Cause I’m trying to play fairly.”

“Oh wow, Mr. Katsuki Bakugou has standards?” The guy mocks.

Katsuki is instantly sitting up straight. He leans into the wall with a grin, delight clear in his voice. “You little shit.”

“Unlike you, I don’t mind playing unfairly every once in a while.”

“You kidding me?” Katsuki mutters. “You look like you sell Bibles door-to-door.”

The sound of snickering passes through the wall. Katsuki can hear Deku’s bed creaking as he rearranges himself. “Well, looks can deceive. Come closer.”

Katsuki frowns. “What?”

“To the wall. Come closer.”

The blond inches forward, eyes narrowing. A loud bang suddenly hits the wall, startling Katsuki back with a yelp. He ends up falling off the bed entirely and lands right on his ass.

The muffled sound of Deku’s cackling rings through the room. “That’s payback for all the times you’ve done it to me!”

Katsuki sits staring at the wall in shock. He spits out a dry laugh. “Asshole.”

*

From that incident onward, Katsuki makes it his nightly mission to rile Deku up. By day he’s got his daily missions which relate to his job and personal errands, but by night… well. Unfortunately, it doesn’t always work. Some days Deku is frustratingly quiet even though Katsuki can hear him moving about on the other side of the wall. It actually irks him more when he’s ignored than when Deku makes disparaging comments about him whenever the blond takes on his nightly mission.

He does attempt to chat some more with the guy, but he only gets little bits and pieces. The majority of their banter is just snark, which Katsuki enjoys immensely, but goddamn if a growing part of him doesn’t want to properly get to know the man on the other side of the wall. Besides, the snarkier Deku gets, the more Katsuki grows frustratingly attracted to him.

A dark part of him wants to put Deku in his place. Really hold him down and show him where his impudent mouth belongs. The dude’s way too cheeky to get away with behaving in such a way. But, Katsuki’s sexual grievances aren’t what fuels his actions. Sure, he would absolutely love to get into Deku’s pants, but a greater part of him wants to simply tease the guy. Ruffle his hair a bit, maybe steal his glasses and rag on him for reading on his balcony past midnight.

It’s these types of thoughts that actually cause Katsuki pause. He easily recognises this behaviour for what it is as he apparently hasn’t matured at all since his preschool days. He’s veering into dangerous territory. Away from lust and toward genuine fondness. Right now, he’s having a whale of a time just pressing Deku’s buttons. He’s not sure how to handle ‘affectionate feelings’ being thrown into the mix.

*

One night Katsuki stumbles home practically dead on his feet, exhausted beyond capable thought and itching to melt into his bed. He just wants to pass the fuck out and maybe sleep for at least a decade. If his old teacher, Eraserhead, could sleep whenever his mood struck, why shouldn’t Katsuki?

The blond falls right into bed, the springs squeaking loudly beneath his weight. His body aligns with the mattress’s form, sinking deep into the comfort it offers. He’s just about to slumber off into dreamland when some long-forgotten sounds ease him back into consciousness.

At first he doesn’t recognise them for what they are, but after the second low moan his brain catches on. It’s Deku. He’s masturbating. Wow. It sure has been a while. Katsuki raises his hand, intent on banging it against the wall, when he suddenly stops. You know what. He’ll let the guy have this one night. He’s certainly earned it.

Katsuki twists onto his back and pulls out the pillow from underneath his head. Might as well give the guy some privacy and muffle the noises coming through the wall. He’s just about to cover his ears with the pillow when he hears an unmistakable sound.

“Bakugou…”

Katsuki stills. What. He lifts the pillow off his head. He’s positive he heard what he heard. He remains perfectly motionless, breathing stalled and ears pricked up. He almost gives up after not hearing anything for ages, when it happens again.

A strained voice exhales, “God, Bakugou.”

One of Katsuki’s hands instinctively falls to the wall. Holy shit. His heartbeat quickens as he bows his forehead against the wall. He gives his dry lips a quick lick before announcing, “At least have the decency to use my first name.”

The motions instantly stop. Katsuki’s heart drops. Fuck. He fucked up.

An audible sigh drifts through the wall. “I thought you were asleep.”

Katsuki ignores the comment. “Why’d you stop?”

The ensuing silence is so tense a knife could slice through it. Distantly, Katsuki can hear the sounds starting up again.

He presses his ear fully to the wall. It’s not enough. He wants more. Needs to hear more. Some part of his brain tells him he should feel guilty about what he’s doing, this dirty deed, like he’s some sort of Peeping Tom. But honestly, he can’t bring himself to care. The noises spilling through from the other side are too enticing to ignore. How the fuck could he stop?

“Tell me what you’re doing. Describe it to me.” He murmurs, voice rough. “Please.”

“You’re ruining the fantasy.” Deku chides, a soft gasp dropping from his lips.

“What fantasy?” Katsuki whispers.

“First time I met you, I thought you were damn attractive. Before you spoke, that is. I like to imagine our first meeting could have gone differently, with you shoving me up against a wall and taking me right there.” Katsuki picks up on a noise of frustration. “I can’t really reach that deep with my fingers, but I’d like to think you could. You and your,” A gasp. “Long fingers.”

“They are long.” Katsuki looks at his fingers splayed out across the wall, the skin weathered from years of sparring. “Long and calloused.”

A low moan echoes through. “You sound strong.”

“I could easily lift you. Pin you up against the wall.”

Deku’s breathing comes out in soft, stuttered hitches. A deep heat consumes Katsuki. Oh, how the tables have turned. He leans in against the wall until his lips almost brush up against it. “Do you have any idea what you’re doing to me?”

“T-tell me.”

“I’m sat in my own bedroom, hard as a rock, like a goddamn teenager. That’s embarrassing, Deku.” He hears Deku’s soft laughter filter through the wall. “It’s embarrassing, yet all I can think about is continuing your fantasy. About shoving you against the wall and having you. Dragging you to my flat and bending you over the arm of my sofa.”

A strangled gasp falls through. “Drive into me.”

“Fucking Christ, Deku.” Katsuki’s forehead thumps against the wall. “Yes. Drive into you. Pull at your hair. Spank your tight, little ass.”

“Yes.”

Katsuki abandons his narrating and immediately tucks his hand into his trousers. He begins working his cock, stroking the length sitting heavy in his hand. The angle which he’s rubbing at is awkward, so he pulls it out of its confines, making it easier for him to stroke. Katsuki’s breathing becomes laboured, his hand working vigorously over his cock. He scrunches his eyes shut, focusing on conjuring up the image of Deku of his fantasies. Fully naked from head to toe, that defiant expression on his face transforming into one of pleasure as Katsuki touches him in all the right places. Against the wall, hot and heavy, hard muscles beneath Katsuki’s touch. Over the arm of his sofa, that wonderfully pert ass angled in such a way to expose all of Deku. Fuck, Katsuki may be a pervert, but it’s not exactly weighing heavy on his mind right now.

Katsuki works his cock faster, fingers gripping his length tighter as they slide up and down. Every few strokes he’ll rub his thumb over the tip, body trembling from the sensation. He can distantly pick up on the sound of moans dripping through the wall. Evidently Deku is also a perv. The realisation delights Katsuki more than he wants to admit. He continues to pleasure himself, keeping a steady rhythm until he can feel his climax building to the point of tipping. Finally, he reaches completion, hunching forward with a drawn-out groan. His entire body is shaking from the aftershocks. Katsuki remains unmoving for a few moments, trying to regain his breath. His heavy pants fill the suddenly silent bedroom.

A languid voice floats through the wall. “Did you cum?”

Katsuki looks at his hand covered in spunk. “Yep.”

“Me too.”

His eyes slip shut. Fuck. “We should do this again sometime.”

The light rumble of Deku’s laugh floats through to his bedroom. “Good night, Katsuki.”

Katsuki gives the wall a last look. “Night, Deku.”

*

In all honesty, the experience does nothing but energise Katsuki. He thought he might feel embarrassed, ashamed maybe, or just a smidgen of regret over the exchange, but apparently not. He goes about his day without a care in the world. Catching bad guys, completing paperwork, going on patrol duty. It’s all the same old, same old, but astonishingly he finds these duties don’t irritate him as much as they usually do. Sure, it’s still annoying having to fill out copious amounts of paperwork and chasing idiotic criminals, but he’s surprisingly in a better mood when dealing with it all. And it’s not escaped the attention of his co-workers who all seem to have unanimously decided to stay clear of Katsuki for the day. Whether it’s because they’re scared of this change in attitude or because they want it to continue for as long as possible, he doesn’t know. And admittedly, he doesn’t care.

Katsuki’s good mood follows him home, and for once he actually has the energy to make himself a proper meal. Fair enough, it’s just pasta, but he cooks up a fancy sauce alongside it which in books count as ‘gourmet cooking’. Honestly, the whole evening after work goes smoothly. He has his dinner, he has a long shower, and even manages to enjoy reading through a few pages of a book he’d been meaning to get around to for ages. It’s strangely calming.

Eventually, Katsuki’s relaxing evening becomes a bit too relaxed for him. Sure, he does enjoy some downtime for himself, but the thoughts of last night finally make themselves known. During the day he’d been professional enough to keep his personal worries separated from his work duties, but now, at home, it’s all coming down on him. He’s not entirely sure what this thing with Deku is. All he knows is that he enjoys the guy’s company, he finds him attractive, and they had non-penetrative sex. Well, it’s more like they had a joint masturbation session, but gods, Katsuki really wants to label it as them having had sex. Evidently Deku finds him just as attractive, else they wouldn’t have partaken in that little exchange.

Katsuki’s body and mind are both attuned to Deku, yearning for even more of the guy in any form he can get it. He checks the time on his phone and realises it’s still too early for bed. Still, impatience gnaws at him. Katsuki abandons his book and heads out onto the balcony. The cold chill bursts against his skin. It’s so very welcome. Katsuki shuts the balcony door behind him before peering over to Deku’s side. Empty. He feels a sigh building in his chest.

Suddenly, there’s a sound near Deku’s balcony, and in the next moment the man steps outside. The two of them instantly make eye contact, their breaths seemingly caught.

Katsuki wastes no time in heading over. “Hey.”

“Hey.” Deku returns.

Katsuki watches as Deku takes a seat. His hair is as dishevelled as ever, and his reading glasses sit comfortable on the bridge of his nose. He’s wearing the same robe he always does, along with briefs and yet another shirt with messy scrawling across the chest. Katsuki really does have to wonder how many of those types of shirts the guy owns?

“You look good.” The blond comments off-handedly.

“When don’t I look good.” Deku cracks as he takes a seat at his little, round table.

Katsuki chuckles and leans his forearms on his balcony railing. “You jest, but you’re spot on. When don’t you look good?”

Deku levels him with a fond glare. He opens the book up and removes the bookmark keeping his place. There’s a lull in the conversation. Katsuki observes as Deku’s finger slowly moves across the page. So the guy reads with a handicap. Huh.

The silence enveloping them seems to drag on forever, and finally Katsuki can’t bear with it any longer. “You not gonna inquire into my wellbeing?”

Deku looks up, clearly holding back a sigh. Katsuki can’t help the grin that comes over his face. “How are you?”

The blond’s grin widens. “Better after having seen you.”

Deku rolls his eyes. “You’re ridiculous.”

They fall into yet another lull, but it’s one Katsuki makes quick work of interrupting.

“You, uh.” He starts. “You feeling less pent up as of late?”

Deku’s eyes flash over to him, holding his gaze for a tick before they return to his book. “One session won’t do it for me.”

“Oh? How many does it take to please you, then?”

“At least seven a week.”

Katsuki practically chokes on his own spit. “Holy shit, dude! What are you, a succubus?”

Deku offers a one-shouldered shrug. “I happen to like sex.”

“So do I, but even I have my limits.”

“Shame.” Deku tuts, turning the page. “You look like you could handle pretty much anything.”

Katsuki feels a sudden heat pooling in his groin. He rearranges his stance, eyes never letting off Deku. “Is this you playing unfairly again?”

That infuriatingly green gaze flicks over to him. “I don’t know what you mean.”

Katsuki licks his lips. Deku’s eyes instantly drop down to them.

“Look at me.” Katsuki demands.

The eyes jump back up.

“Are you busy tonight?”

“...I might be.”

Katsuki grins. “Well, if you can make some time tonight, how about I jump over there and we have ourselves a good time?”

“Jump over?” Deku repeats incredulously, having gotten hung up on completely the wrong part of Katsuki’s sentence. “As in physically jump the railing?”

“It’s not that far.”

“It’s like two metres.”

“Yeah.”

“That’s dangerous.”

Katsuki waves away his worries. “I jump that type of shit daily in my line of work.”

Deku narrows his eyes at him. “Really now? And what is it you do?”

Better to show than tell, after all. “I’m a Pro-Hero. My Quirk is…” Katsuki raises his hand. Small sparks suddenly start to appear in his palm. Excitement rolls through Katsuki at the sight, as it always does whenever he uses his Quirk. He can feel the power coursing through his veins, eliciting miniscule blasts against his skin. “Explosions.”

And just as quickly as the sparks had appeared, they flicker out, leaving not a single trace of their existence behind. Katsuki briefly peers across the balcony, noticing Deku’s eyes have widened perceptively and his chest heaving. A salacious grin lifts up the corner of the blond’s mouth.

“So,” He begins casually, hand falling back to the balcony railing. “How about that good time?”

*

Katsuki spreads his knees further, allowing him to better sink his cock down Deku’s throat. The man is sprawled out on his back with Katsuki resting on his chest, his wonderfully soft lips wrapped around his dick, expertly tonguing the length and occasionally sucking on the tip. Katsuki’s hips careen forward in an effort to seek more of that lovely heat. The only way this could be better is if they were barebacking it. Goddamn, he feels like he’s on fucking cloud nine.

Deku chokes slightly on his cock but doesn’t move away. If anything, he renews his efforts, fingers digging into Katsuki’s hips as he tilts his mouth upwards. Katsuki can feel the guy’s nose digging into his pubic hair, the tightness of his throat making his cock jump. He briefly swabs away the sweat on his forehead. Deku hums and Katsuki damn near comes right then and there.

He grabs Deku by the back of the hair and pulls him back. Deku coughs, clearly displeased with this. He wipes at his mouth with the back of his hand. His dark gaze peers up at Katsuki from under his messy curls, those damn green eyes getting him worked up like nothing else. The encompassing heat in Katsuki’s every muscle propels him forward. He presses Deku’s lips against his own, tongue dipping in to coax the man into dropping moans.

One quick fix is all he needs before he flips Deku over onto his stomach. Katsuki stretches toward the nightstand, fingers already digging into the bottom drawer. “Where’s your lube?”

“Top drawer.” Deku pants. He glances over his shoulder at Katsuki, but the blond swiftly pushes his head back onto the bed. He can feel Deku’s entire body shiver.

“Top drawer? You really are a succubus, aren’t you?” He mutters, grabbing the lube. He foregoes closing the drawer in favour of sitting back on his haunches. Deku is spread out before him like a goddamn meal in his full, naked, muscled glory. If Katsuki were religious he’d give a quick prayer. Instead, he pops open the lube and squeezes a liberal amount out onto his fingers. Better safe than sorry.

Deku starts writhing in place, impatience digging its claws into him. Katsuki takes his free hand and spreads Deku’s cheek open. His entrance is twitching, keen and eager. Katsuki’s fingers instantly rub against it, the cold lube causing Deku to tense. Katsuki soothes him with soft murmurings, gently rubbing the thumb of his free hand over the man’s cheek. He firmly but carefully works the lube against Deku’s hole, warming it up enough before sliding his index finger in until the first knuckle. There’s not much resistance, and so Katsuki slips it back out before sliding it once more, to the second knuckle this time.

The enveloping heat is driving him mad, promising fucking great things to come if Katsuki can take his time and work Deku open until he’s writhing, begging mess. Katsuki’s cock jumps at the image. Yes, that’s what he wants. Deku on his stomach, delirious with pleasure, begging Katsuki to take him.

“We’re going to take it slow and safe, Deku. Don’t want to hurt you.”

“Call me ‘Izuku’.” The guy pants.

“So that’s your name.” Katsuki gives his fingers a particular twist, and Izuku emits a startled gasp. He grinds back against the digits. Katsuki drapes himself over the guy’s back, lips falling right beside his ear, and whispers, “It suits you.”

Izuku chokes out another moan, his body tensing around the blond’s fingers. With his end goal in mind, Katsuki keeps to his mission. He works Izuku open one finger at a time, with each finger adding a dribble more lube to help ease the man’s muscles. He can feel Izuku’s insides twitching at the intrusion, hugging his digits close. It’s taking all of Katsuki’s patience not to abandon the prepping and simply shove into Izuku. It feels like it takes ages, years, eons, but finally Katsuki can comfortably fit three fingers into the man. He can even spread them apart slightly, watching with utter fascination as Izuku’s entrance widens. Katsuki’s entire body is aflame. He’s not done. Not yet.

“Please tell me you have an enema.” Katsuki grits out.

Izuku mutters something inaudible.

“What?”

“Already done.” Izuku says, louder this time.

Katsuki barks out a dry laugh. “Jesus Christ, is your switch always on?”

Izuku throws him an irritated look over his shoulder. “It’s been on ever since I found out who my new neighbour was.”

Katsuki grabs one of Izuku’s cheeks and gives it a tight squeeze. “Cheeky.” He leans forward once again and captures Izuku’s lips in a firm kiss. He bites at the man’s bottom lip, pulling slightly, and devouring the deep groan that spills from Izuku’s mouth.

With that, Katsuki sits back on his haunches and lines himself up with Izuku’s entrance. He quickly runs his fingers down the cleft of his ass, revelling in the way the man’s body twitches with anticipation, before slipping the tip of his cock inside. The heat is unbearable. It’s so, so good, and he’s not even fully inside yet. There’s not much resistance from Izuku’s body, and Katsuki inwardly congratulates himself on his dutiful prepping. As he sinks deeper into Izuku, he can feel the guy’s entire body trembling. His back is glazed with a layer of sweat, his muscles jerking every few seconds.

Katsuki gingerly drags his hands up Izuku’s sides. He can clearly see the shiver running down his spine. A smirk finds it way onto the blond’s lips. With increasing confidence, he angles slightly forward, knees spreading further and submerging the last of his cock inside Izuku. He gently kneads at the guy’s lower back, allowing himself a moment to enjoy the goddamn perfect tightness engulfing him. He feels as if he’s slowly losing his mind to a dream.

Izuku rolls his hips back. “Move.”

“What’s that now?” Katsuki repeats, mind elsewhere entirely.

“I said ‘move’, Katsuki.” He repeats, hips still shifting. “Move.”

Katsuki finally latches onto the words and barks out a dry laugh. “As you wish.”

He lifts his hand and drops a smack right onto the guy’s ass. Izuku lets out a shocked gasp. Katsuki repeats the motion immediately, and Izuku propels forward. His entire body is tight with tension, trembling from head to toe. He’s truly a sight to behold.

Katsuki begins to do just as Izuku requested; he moves. His hips careen forward, starting out slow but swiftly working their way up to a steady rhythm. Izuku feels absolutely amazing, just heat, and tightness, and a fantastic body that pushes back to meet every one of Katsuki’s thrusts. It’s terrific. It encourages Katsuki to increase his speed. It’s not that he’s afraid of harming the guy— not with all his careful prepping— but he doesn’t want Izuku to come away from the experience feeling unfulfilled. But, seeing how enthusiastically he’s reacting to Katsuki’s actions, he reckons he’s not got much too worry about there.

Katsuki drives further into Izuku, keeping his quick pace. Before, when there was just a mere wall separating them, Katsuki had never allowed Izuku to go too far with his masturbation, and so he didn’t know how vocal he was in bed. He’s delighted to find that the answer is ‘very’. With every thrust Izuku gasps out a moan, or groan, or pants as if he’s struggling to find his breath. It drives Katsuki mad and he can’t stop himself from driving further into the man’s body. His force causes Izuku to pop one of his legs out to the side, bending it so as to use it as leverage to meet Katsuki’s thrusts.

It’s goddamn perfect. The new position allows Katsuki to piston deeper inside Izuku, and going by the man’s increased level of noise, he’s pretty goddamn keen on the change too. Katsuki can feel himself nearing completion, his stomach muscles spasming with every push forward. He leans forward until his hands fall onto Izuku’s hip and shoulder. He can feel the sweaty mess beneath his palms, muscles hot and quivering. Katsuki’s ego is in serious danger here. He digs his fingers into Izuku’s skin and drives in, going hard and fast without faltering. Izuku’s moans fill up the bedroom, the man dropping them from his lips without an ounce of shame.

Katsuki drives in deeper, harder, faster, burying himself inside Izuku until his sight damn near blanks out. He instinctively grabs a fistful of Izuku’s hair. Izuku throws his head back with a startled gasp, and Katsuki feels his inside constrict around him like nothing he’s ever experienced before. That, along with his building desire, is what finally leads him to climax. Katsuki hunches over with a groan as pleasure tears through him, Izuku’s body milking him for everything that he’s worth. His cock jumps, making a valiant effort at getting hard again, but Katsuki doesn’t have it in him right now.

He topples over from the exhaustion, falling beside Izuku who is still fighting to catch his breath. Katsuki does the same, breathing in and out several times as he tries to lower his insane body temperature. Goddamn, he always runs hot, but post-sex he’s truly at his worst. It takes a few more moments before he’s able to regain a level breathing. Katsuki peers to the side and finds Izuku is still taking his time deeply inhaling and exhaling, his eyes screwed shut.

“You alright?” He asks.

“Just a sec.” Izuku pants lightly, and fuck, his voice sounds wrecked.

Katsuki continues to watch, unsure of what to do. He would love to help, but it’s probably best for Izuku to handle his own comedown. Not wanting to lose his reputation of being a generous lover, Katsuki pulls himself out of bed and goes hunting for tissue paper. His legs are unsteady as he walks, a reminder of his most recent activities. Katsuki manages to find Izuku’s bathroom and grabs a roll of toilet paper. While there, he also makes sure to dispose of his condom. He wets some of the paper and heads back toward the bedroom but stops in his steps. A glass of water would probably help. He heads into Izuku’s kitchen and swiftly grabs a glass, filling it to the brim with water, before finally heading back to the bedroom.

He hands the glass to Izuku who gratefully takes it. Katsuki half-watches as Izuku gulps down several mouthfuls, the other half of his attention focused on wiping the cum and sweat off of Izuku. Never let it be said Katsuki doesn’t have great aftercare skills. Izuku makes a meek noise of protest, but it’s quickly quenched by another gulp of water.

Katsuki emits a low chuckle. “You alright now?”

Izuku holds up a finger, the lip of the glass still resting against his mouth. “One moment, please. Still recovering.”

Katsuki grins to himself. He’s still got it.