Work Text:
Katsuki has a plan.
He’s been a virgin for long enough that it’s starting to get pathetic. He doesn’t have time for a relationship, but it wouldn’t be bad to fuck someone and get it over with so he can move onto better methods of stress relief than watching Netflix with a jar of grilled olives and a beer.
The first step of the plan involves downloading a dating app, uploading a few photos that don’t have his face or recognizable scars, and specifying in his profile that he doesn’t want anything serious.
It works well. Too well, in fact, which is why he’s currently spending his Saturday afternoon sorting through no less than 101 matches, a good two-thirds of which have sent him dick pics in varying shapes and sizes, all unappealing.
Annoyed, he collapses onto his sofa and kicks his legs up onto the coffee table. He needs someone who seems fairly experienced, but doesn’t look like a massive jerk. All he needs is a guy who can take control and show him a good time so he doesn't have to flounder around, considering that his attempt to watch porn for research ended with him slamming his laptop screen down in disgust within two minutes of the first video.
He pauses on the next match. The guy is the same age as him, with fluffy green curls and bright eyes. His profile declares proudly that he’s an All Might fan, loves katsudon, and is looking forward to meeting new people. What a nerd. Still, he has muscled arms littered with scars that are more attractive than Katsuki would like to admit and a confident smile in his profile photo, so it’s worth messaging him.
He doesn’t really know how this shit works, but he figures it can’t be that hard. all might, huh? good taste
He shuts his phone off and very firmly does not check his phone every five minutes until Midoriya Izuku replies a few hours later.
Yeah!! You like him too?
Katsuki types back, been a while since i watched kiddie shows. It’s a lie. He rewatches All Might’s Super Smash Adventures every other week.
The conversation continues from there. It turns out Izuku—at least, Katsuki’s pretty sure it’s Izuku and not Deku, even if that would be amusing—is actually pretty fun to talk to. He’s smart, witty, and types with way too many exclamation marks, but his ridiculous enthusiasm is kind of endearing.
More importantly, he’s getting the vibe that Izuku is decently experienced, especially since he barely hesitates at all before inviting Katsuki over to watch an All Might movie. That has to be an excuse to fuck, but it’s what Katsuki wants, so he agrees to go over to Izuku’s apartment the next week.
The day of their meeting, Katsuki starts getting ready embarrassingly early. He always pictured himself topping, but looking at those strong hands that would fit perfectly around his waist, he’s not so sure, so he skims through a few obscenely titled articles before cleaning himself thoroughly. After some consideration, he pulls on a pair of jeans and a tight shirt. Ashido would tell him to put on eyeliner, so he stares at himself in the mirror for a solid five minutes before he reaches for the eyeliner. He might as well.
Izuku’s apartment building looks normal to the point of mediocrity. Another tenant is walking in at the same time Katsuki arrives and holds the door open for him, so Katsuki goes straight up the stairs to the floor and flat number Izuku texted him earlier. He takes a deep breath, then rings the doorbell.
There’s a skidding noise from inside, frantic footsteps, and the door flies open. Large green eyes shine brightly as Midoriya Izuku beams at him, messy curls framing his round face. “Hi, Bakugou-san.”
Katsuki wrinkles his nose. It wouldn't feel strange ordinarily, but the fact that he's here for sex makes it too formal. "Don't call me that.”
“Uh…Katsuki-san?” He gives him a toothy grin. “Katsuki-chan? Oh—Kacchan?”
Katsuki glowers at him. “We’re not five years old.”
“I think it’s cute,” he teases, stepping aside to allow Katsuki into the genkan. Katsuki shoots him a glare, but takes off his shoes before following Izuku into the living room.
It’s even nerdier than he had anticipated. There are multiple All Might posters on the walls, along with bookshelves filled with shounen manga and superhero figurines. Still, it looks clean and tidy, and Izuku clearly keeps everything well organized. It doesn’t look like the apartment of a serial killer who would invite Katsuki back to his place to murder him, so at least he isn’t fearing for his life.
Beside him, Izuku’s freckled cheeks are turning crimson. “I know it’s embarrassing, but I figured there’s no point in taking it all down, so…”
“You’re goddamn lucky I like All Might,” Katsuki tells him. A relieved smile breaks out on Izuku’s face, and Katsuki can’t help but think that he’d like to see that smile every day.
He pushes the thought away. He’s here to fuck once so he can get it over with, not get into a relationship with someone who looks like the embodiment of sunshine. Izuku is obviously the kind of person who would water his neighbors’ plants and adopt a stray kitten because he felt bad for it, and Katsuki isn't going to allow that to sway his resolve.
“I was thinking I could make dinner,” Izuku offers. “Then we could watch a movie.”
Katsuki shrugs. “Sure, whatever.”
“Is there anything you want? I mean, I prepared some stuff, but—” He gives an awkward huff that almost resembles a laugh. “I don’t really know what you like."
“Anything spicy,” he advises.
Izuku brightens. “I can do that.”
While Izuku busies himself with rummaging inside the fridge, Katsuki sits on one of the stools beside the kitchen islet and watches him flit around the kitchen like a fish at a coral reef. His curls flop over his eyes when he kneels to pull two bowls out of the cupboard, and he flicks his head back to tilt them away.
His arms look even more impressive than his photos, littered with light purple scars that curl around his biceps like vines. When he pushes himself up on his toes to grab a spice jar from the top shelf, Katsuki catches a glimpse of the sliver of skin around his hips, the sharp lines of his pelvis and the dusting of tiny green hairs that lead into his pants—
“Kacchan?”
Katsuki jolts, looking upwards. The slight smugness in Izuku’s face makes it glaringly obvious that Izuku noticed him staring. “You’re not seriously calling me that.”
“Why not?” he says with an unfairly adorable smile. He’s the human embodiment of a golden retriever and it shouldn’t be so fucking cute. “Are you okay? You were kind of spacing out.”
Katsuki doesn’t blush. He does not. “Fuck off.”
“Um. Okay.” A hint of shyness creeps into his expression. “You’re—you’re really cute.”
“Cute?" he repeats, incredulous. "I’m not fucking cute."
Izuku steps closer and sets his hands on the kitchen islet, leaning over the marble until Katsuki can almost feel those rowdy curls tickling his cheeks. “Handsome, then.”
Katsuki goes lightheaded, warm tingles prickling at his skin. He’s never felt this before, a swarm of butterflies attacking each other in his stomach. He leans just a little closer, enough that Izuku’s breath touches his lips. His heartbeat thunders in his ears, his gut twisting into a tight knot. He never expected to kiss someone who’s practically a stranger, but he finds his eyes drifting shut, waiting.
The warmth in front of him pulls away, and he opens his eyes to find Izuku turning back to the counter. Katsuki stares at him in disbelief. As if sensing the glare on him, Izuku glances back over his shoulder, shooting him a coy smile before returning his attention to the food.
Katsuki wants to be infuriated, but for some reason, he’s considering dropping to his knees and sucking Izuku off right here while he nonchalantly chops the garnish.
Once the thought has entered his head, he can’t help but wonder what Izuku’s dick looks like. How it would feel in his palm. Certain that Izuku is distracted, Katsuki glances downwards, trying to make out the imprint of Izuku’s dick in his pants. He’s wearing nice pants, the fancy kind someone would wear to a restaurant rather than an at-home date, though they’re paired with a lame shirt that reads 'Dress Shirt'.
“Kacchan,” he says, and shit, he obviously noticed Katsuki staring at him again.
Katsuki looks up, frustrated. “Focus on the damn food.”
Izuku stifles a laugh, his eyes sparkling. “You don’t seem very interested in it.”
“Shut up. Get back to it and mind your own business.”
“Isn’t it my business if you’re checking out mine?”
“I—” Katsuki sputters, taken aback. “Fuck you.”
He hums. “Not exactly the plan.”
Oh, they’re definitely on the same page. A shiver of anticipation runs up Katsuki’s spine, along with a traitorous lurch in his stomach. He can’t be nervous unless he wants to remain a virgin for the rest of eternity, so he forces himself to meet Izuku’s eyes with a casual grin as if he wasn’t just trying his best to check out the man’s dick.
“You distracted, Deku?” he taunts.
Izuku almost looks surprised at that, his confident exterior shattering. “It’s, uh, Izuku.”
“I know.” He props his elbow up on the islet, resting his cheek in his palm. “I just think Deku suits you more.”
Crossing his arms, Izuku leans back against the counter. “Has anyone ever told you that you’re kind of a jerk?”
“All the time.”
“I figured.” He smiles again, oddly sweet for someone who just insulted Katsuki. “I still think you’re cute, though. And I’ve never met anyone else who knows so much All Might trivia, even if you’re pretending you’re not a huge fan.”
He sniffs. “Whatever.”
Despite his best attempts, Izuku refuses to let him help, insisting that most of the meal is ready, despite the fact that he’d presented the idea of eating dinner at home as if it were an impromptu suggestion. Katsuki can't help but feel satisfied that Izuku isn’t half-assing this, even if it’s a thinly veiled excuse for a hookup.
The dinner, katsudon served in pale blue plates with mismatched placemats, isn’t particularly romantic, but the conversation flows well. Katsuki usually has to suppress his urge to rant about superheroes when he’s around his friends, but with Izuku, the topic arises naturally, shifting from films to soundtracks they both enjoyed to a thousand different subjects.
It’s been a long time since Katsuki has connected with someone, but it definitely helps that the man sitting across him is so fucking cute that it almost hurts to look at him. When he smiles, it’s sweet and enthusiastic, his eyes sparkling, and the way he tilts his head to the side like a bird just a moment before he asks Katsuki a question makes Katsuki want to kiss his face all over.
He wants more, too, to feel that talkative mouth trailing kisses down his body, murmuring dirty words in his ear, but the thought has him uncomfortably crossing his legs under the table to hide the swelling bulge in his pants, so he tries to divert his attention back to the story Izuku is recounting about a disastrous amusement park visit where he ended up getting heatstroke.
It’s only after dinner that everything draws to a standstill. The plates are cleared away, and they’re left in the living room, staring at each other. Tension buzzes in the air, but it’s not the kind that pulls them closer to each other. Katsuki knows what’s supposed to happen next, but the idea of breaching the gap between them feels strangely nerve-wracking.
Maybe it’s best to dive straight into the deep end. Bakugou Katsuki is not a little bitch, so he charges forward and grabs Izuku's shirt with two fists to tug him straight into his first kiss ever. It’s messy and clumsy and Izuku makes a small, surprised noise that turns into a choked moan when Katsuki sticks his tongue into his mouth. He doesn't know whether that's supposed to be a good thing, but he likes it.
Then Izuku pulls away with a shuddering gasp, his cheeks flushed pink. “Wait. I–I’ve, uh, never done this before.”
He stares at him. “What. The. Fuck.”
“I’ll try to be good,” Izuku says hurriedly, looking abashed. “I’m sorry, I know you’re probably much more experienced, but I liked you so much that I was hoping it wouldn’t matter, and I get it if you’re uncomfortable and I should just leave—I mean, I live here, but you can leave if—”
“Shut the fuck up!” He glares at Izuku with all the force he can muster. “You were supposed to be the expert. I’ve never done this, either.”
It’s Izuku's turn to look taken aback. “Really?”
“Why’s that surprising, huh? You’re not ahead of me!”
“I didn’t say that!”
“I’m not backing out now,” Katsuki informs him. He wishes he could say it’s because he wants to get this over with, but the truth is that he has been thinking about climbing Izuku like a goddamn tree since he laid eyes on him and he’s not stupid enough to miss the chance to fuck the most attractive person he has ever met, even if the aforementioned person is a massive nerd and a virgin, on top of everything.
Izuku's eyes widen a little. His confident aura has effectively disappeared, but Katsuki kind of likes this, too, the cute blush on his cheeks and the way he stutters over his words like he’s too excited to form them properly. “Are you serious? Then, um, should we—uh, we could—”
“Bedroom.”
“Right! Bedroom.”
Izuku's bedroom didn't survive the whirlwind of All Might merchandise that he apparently deems acceptable decor. A grin worthy of a dentist's office grins at Katsuki from at least ten figurines lined across shelves, and a full body poster leers at him like it knows why Katsuki came here. There's no way in hell he is losing his virginity while his childhood hero cheers him on with a thousand-watt smile and the tagline Plus Ultra!
"Sorry," Izuku says, defeated. "I didn't think ahead."
Katsuki blinks, then sighs. “Forget it. I’ll just go.”
The moment he steps towards the door, a strong hand grabs his wrist and yanks him into a kiss, hot and eager, Izuku’s tongue insistent in his mouth, and fuck, that’s more like it. Katsuki moans against his lips and grabs a fistful of green curls, forcing Izuku’s face closer to his as they stumble together towards the bed.
Once his knees meet the bedframe, he collapses backwards and Izuku crawls over him, caging him in with his arms, still kissing him. Katsuki’s head is spinning, his lungs burning for air, but he can’t do anything beyond wrap his arms tighter around Izuku’s neck and kiss him like he would die if they broke apart.
When they do, Izuku draws a shuddering breath, dropping his forehead against Katsuki’s. “I’ve been wanting to do that all night."
"Yeah?” he says, breathless. "Should've done it."
"I was too nervous." Izuku’s hands slide along his sides over his shirt, sparking tingles all over his skin, then his mouth is on Katsuki’s again, messy and eager.
Katsuki always thought kissing must be overrated, but he finally understands why people make such a big deal of it. The warm mouth against his, large hands palming at his ribs, the steady weight of the hard, muscled body pinning him down in the best way; yeah, it's fucking good.
“You’re so hot,” Izuku breathes. “I can’t believe I get to do this with you."
“Nerd," he grumbles. "Take my shirt off.”
With a small, nervous laugh, Izuku tugs at the hem of Katsuki’s shirt, pulling it up and over his head. He lifts his own shirt, too, revealing the hard tones of his abdomen that make Katsuki want to push him down and lick fucking chocolate sauce off his body. The shirt gets stuck around his neck, and he struggles with it for a few seconds before Katsuki snorts and takes pity on him, reaching up to help him guide the shirt off.
Izuku flattens his palms against Katsuki’s abdomen, tracing the planes of muscle with an awed look. “You’re… wow.”
Normally, he would feel smug, but there’s something electrifying about having Izuku stare at his bare chest like that, eyes hungry and searching, lingering without shame on his pecs. Anticipation sets his nerves on fire, forcing shivers through his body. He wants Izuku to do something already.
“You gonna look or touch me?” Katsuki taunts.
“Touch,” he says, and bends down to kiss Katsuki. His lips slide from Katsuki’s mouth to his jaw, the side of his neck, leaving wet trails under the press of his tongue. Each kiss feels like a small explosion in Katsuki’s body, warm and exciting.
Then Izuku's nail brushes against his nipple, and Katsuki lets out an obscene moan. Instantly, they both freeze.
Izuku looks like he just discovered the rarest edition of the limited-run All Might manga series. “Did you like that?”
“No way!"
He experimentally drags his nail over Katsuki’s nipple, and a whine catches in Katsuki’s throat. Before he has a chance to die from the mortification, there’s a hot, wet mouth on his nipple. Katsuki makes an embarrassing sound he’ll never be able to forget, right up until Izuku sucks and he lets out a high-pitched moan that’s even worse.
Izuku pulls away with shining eyes, a strand of saliva webbing between his bruised lips and Katsuki’s nipple. “You really do like that.”
“I hate you,” Katsuki manages to say, though he’s still reeling. “Don’t stop.”
A cocky grin, and Izuku swipes the flat of his tongue over the pebbled bud before sucking it back into his mouth. Katsuki can't help but squirm at the slight tickle, but Izuku squeezes an arm under his body, holding him close in a possessive grip as he swirls his tongue around the hardened nipple.
Katsuki chokes back a gasp, shoving his hand into Izuku's mussed hair. "Oh, shit. Keep doing that."
Izuku's free hand finds his other pec, rubbing a rough thumb over his nipple, his scars a delicious texture against Katsuki's sensitized skin. He arches off the mattress, melting under the ecstatic sensations, pushing his chest harder against Izuku’s palm.
“I can’t believe this," Izuku mumbles. "You’re so hot.” He laps at Katsuki’s other nipple, tweaking the first with his hand. “I could do this all day.”
“Stop licking my pecs and fuck me already.”
Izuku pauses, surprised. “You want me to top?”
“Got a problem with that?”
“No! I just—you don’t seem—I mean, you do, but—”
“It's not a big deal,” Katsuki says, annoyed. “I just don’t wanna stick my dick in some random guy.”
“But it's fine for someone to stick their dick in you?"
"That's different," he sputters, though Izuku actually has a point. "I–you–I don't trust you to clean yourself properly."
He pouts. "I have excellent hygiene."
"Good for you. Get your dick out."
Izuku pulls away to fumble at the buttons of his pants, but his next glance meets Katsuki’s intent gaze and he leans forward for a quick kiss. He tries to undo his pants while kissing him, but it proves difficult, so he draws back just enough to keep their lips connected while he struggles with his pants.
Katsuki makes a frustrated noise. “Damn it, Deku—get your pants off! Then you can kiss me.”
“Sorry,” he says sheepishly, clambering off so he can tug off his pants.
Once his pants are off, Katsuki takes a moment to stare at him. In addition to a cute face and a voice that makes Katsuki feel like someone tied balloons around his heart, Izuku has a body that could only have been sculpted by Greek gods, and he’s looking at Katsuki with unabashed admiration. Katsuki must have done something seriously good in a past life.
"Can I kiss you?" Izuku asks. At Katsuki’s incredulous look, he adds, "I just want to make sure we're both, uh, comfortable, and–"
"You had your mouth on my nipple a minute ago," he says, unimpressed. "That's not comfortable enough?"
He flushes, his gaze trailing down to Katsuki's chest. "Uh. Yeah. Can I… do that again?"
Katsuki makes a split second decision. "No. I'm gonna suck your dick."
Izuku looks like he was told that All Might is visiting their neighborhood for a meet-and-greet. "You–you–what?"
"I'm not saying it again! Lie down."
"But–" He looks far too torn for someone about to get his dick sucked. "Are you sure?"
He glares at him. "I don't do shit I don't want to. Get on your back and spread your legs."
"You're making it sound like a medical procedure!"
Impatient, Katsuki pounces, pushing Izuku over, who falls flat on his back on the bed with a yelp, then shoves a hand down to grab Izuku's dick. It's not that long, but it's thick and solid in his hand. He’s almost relieved; if Izuku had a massive dick, Katsuki wouldn’t have admitted defeat, but he sure as hell wouldn’t have enjoyed the idea of dealing with it. This is more manageable.
Izuku's eyes go impossibly wide, his face blazing scarlet. "Kacchan!"
Holding Izuku's dick without moving is plain weird, but the prospect of jerking him off feels weird, too. Katsuki drags his hand upwards, the wet glide of precome easing the motion, and Izuku's breath hitches in this quiet, whiny little way. Fuck, Katsuki could listen to that sound all day. He takes the plunge, crawling down the bed and gripping the base of Izuku's dick to keep it in place as he sucks the head into his mouth.
Izuku lets out a choked groan, hips flexing upwards, but Katsuki ignores him, too occupied with the fact that he has another man’s dick in his mouth. It tastes like clean sweat, the shaft pulsing on his tongue. He gives it an experimental suck, and Izuku makes a sound like he’s dying.
“Kacchan,” he moans, his hand fisting tight in the sheets. “More, please.”
“Don’t tell me what to do,” he says, but he licks the tip of Izuku’s cock anyway, making his hips buck up. He never thought it would feel good to give someone a blowjob, but he likes the weight of the cock in his mouth, the slight musk of Izuku’s scent that strengthens with his arousal.
A hand strays to his hair, hovering loosely like he's not certain whether he can touch. Katsuki's still trying to figure out whether he's supposed to actually suck Izuku's dick or whether that's just an expression and he has to move his head like those terrifying tower rides he likes at amusement parks.
He settles for the latter, bobbing up and down, and once he falls into something resembling a rhythm, he curls his tongue around Izuku's shaft in a way that has him crying out and thrusting into Katsuki's mouth hard enough that it nudges against the soft palate of his throat. He sputters, nails digging hard into Izuku's thighs in an attempt to hold back his gag reflex.
Izuku instantly moves away, shuffling back on his hands with a mortified expression. "I'm–I'm sorry! I just got excited, I didn't mean to hurt–"
"As if your shitty dick could hurt me!"
He looks wounded. "Shitty–ah!"
Katsuki swallows down as much of his cock as he can at once, pushing Izuku's hips flat against the bed to stop him from bucking up. Izuku keeps moaning and crying out, yanking on Katsuki's hair to try and stuff more of his cock into his mouth. Katsuki's eyes are starting to water, but he’s not a quitter so he manages to force his mouth wider to take more of Izuku’s cock inside.
He doesn’t have all of it in his mouth, but he makes up for it with his hand, stroking the base while he drags his tongue along the underside of Izuku’s dick. Heat floods his stomach, humming through his veins as Izuku writhes under him, panting with his lips falling open. It’s almost embarrassing that Katsuki’s getting hard, too, just from watching Izuku’s reactions.
His jaw is starting to get sore, but he powers through, arousal shooting through him as he sucks on Izuku’s tip, making him jolt.
“K-Kacchan,” Izuku chokes, yanking on his hair, “Stop, I’m close—”
He knows he should stop, but he’s drunk on control, on the power buzzing through him as he makes Izuku fall apart. Still, if he makes Izuku come in his mouth, he doesn’t know whether Izuku can get it up again in time to fuck him, so he pulls off—
Warm liquid spatters across his cheeks, landing straight in his eyes. He lets out a pained screech, rubbing a frantic hand over his eye to wipe away the milky fluid dripping from his cheekbones. It tastes unpleasant on his lips, salty and a little bitter.
"I'm so sorry!" Izuku sits upright quickly, eyes wide and horrified. "Are you okay? I did try to warn you.”
Scowling, he tries to wipe the cum off his face with the back of his hand, then grabs a few tissues from the tissue box on the nightstand to clean the rest of it off his face. "'Why'd you come so quick?"
"I couldn't help it! It felt too good–but I'll get it up in a minute, I promise."
"Fine," he grumbled. "Until then, you'd better make it up to me."
“I–I will!” Izuku crawls forward and kisses him, pushing him flat against the mattress. Katsuki sighs into his mouth, wrapping his arms around Izuku's neck to keep him close. His jeans are painfully tight, crushing his hard cock against his thigh, but the burning friction as he grinds up against Izuku's body feels so good that he can't bring himself to pull away long enough to take them off.
He doesn't have to worry about it, because Izuku reaches down to fumble with his zipper. The heat of his hand against Katsuki's groin, even through the fabric of his jeans, sends a shock of sensation through his body, and he has to bite his lip hard to hold back a moan. Izuku has barely touched him, and Katsuki feels like he's going to come if Izuku breathes anywhere near the general direction of his dick.
Izuku moves down his body, pressing kisses along the planes of his stomach and his hips, until he reaches the waistband of his jeans. Izuku undoes the buttons and tries to pull the jeans down, but Katsuki's skin is sticky with sweat and Izuku's hands are shaking so much that it takes him a few tries to pull the jeans off Katsuki's legs, along with his boxers.
He sits back on his haunches to reach for the lube, his face twisted with desire. "Can I touch you?"
"About time you do.”
Still, Katsuki flinches when Izuku presses his fingers against his rim. It feels weird to have him touch such an intimate place, but he breathes past the embarrassment, scrunching up his face. Izuku spreads the lube around his opening, then pushes a finger inside to the second knuckle.
Katsuki can't hold back a choked gasp, a strange sensation shooting off inside him like electricity straight to his nerves. It feels good, like scratching an itch he didn’t know he had inside him. Desire crackles through him, frantic need, his blood boiling in his veins. Izuku gently circles his finger, rubbing his walls, and hot shivers erupt through Katsuki’s body. He clenches down around the intrusion, and Izuku glances up at him, gaze hazy and intense.
“That’s it,” he says in a soft voice, his breath ragged as he works a second finger into Katsuki’s tight hole. “You’re amazing. So sexy.”
He groans, spreading his legs wider in a silent plea for Izuku to keep going. He does, slowly at first then faster, his fingers quickening until they're pistoning into Katsuki without pause. When Izuku dips his thumb between his cheeks and rubs over his sensitive rim, Katsuki whimpers and clamps down, his whole body tightening. He never thought much about what being fingered would feel like, but he wouldn't have expected this, raw pleasure flooding his body and setting off small explosions along his nerves.
“Harder,” Katsuki manages to choke out. A tingle tears up his spine as Izuku’s fingers find his prostate. "Harder, Deku."
Wet noises fill the room as Izuku fucks his fingers in and out, curling them upwards, rough knuckles nudging deliciously against Katsuki’s sweet spot. His back arches off the mattress, short pants and huffs of breath slipping from his lips as pleasure courses through him, rushing down his spine and making his toes curl. He’s seeing fucking stars. Another firm nudge to his sweet spot and the world explodes like a supernova.
“Ah, yes, fuck, Deku—” Katsuki throws his head back into the pillow, chest heaving with each panting breath. “Yeah, fuck, feels good—”
Good’s not enough to describe it. It’s perfect, it’s ecstatic, it’s the best fucking thing he’s ever felt. With each thrust, Izuku’s knuckles catch on his rim, and Katsuki’s hips keep rolling back into the swift motions. The added pressure only makes him moan louder, but he still needs more, needs to be filled and fucked open on Izuku’s dick.
"Can I–" Izuku's voice is husky, desperate. "Can I fuck you now?"
“Yes, fuck, yes,” he pants, so turned on that it feels like he'll explode if he doesn't get Izuku inside him now. “Fuck me, come on.”
He wipes his hand on the sheets and reached over to rummage around in the drawer until he procures a small package. He rips the wrapping open and rolls the condom onto his dick, just a little too confidently. Katsuki squints.
Izuku catches his suspicion with a sheepish smile. “I, uh, practiced.”
“You practiced,” he says in disbelief.
“On myself,” he adds quickly. “Not, like, a banana or anything.”
“Just stop talking.”
“Got it.”
Izuku leans down to kiss him, soft and sweet, as he presses his dick to Katsuki’s opening. Slowly, he pushes forward until the head pops inside. Katsuki swallows. It doesn't hurt, but it's definitely more than taking a few fingers. He’s about to have sex for the first time and all he can think of is that he just accidentally made eye contact with the All Might poster on the wall—then Izuku’s dick slides further into him, and all thought flies out of his head like a bird launched from a nest.
Izuku pulls back, then pushes into him again, slipping a little further this time. Katsuki is starting to feel the stretch, intensifying as his body tries to accommodate the thick, hard length. That’s a dick. Inside him. He’s getting fucked and it’s like being fingered dialed up to a thousand; more girth, more sensation, more fucking everything. He thought the sensation would be centered in his ass but it’s everywhere, from his shaking legs to a pleasant buzz at the base of his skull, an electric current fizzing through him.
“Are you okay?” Izuku asks, searching his face intently.
He nods, feeling breathless. “Don’t stop.”
Izuku thrusts in harder, and Katsuki moans at the new sensation, his ass seizing around Izuku’s cock. It didn’t look that big, but it feels massive inside him; he can feel each intimate detail, the ridges and veins rubbing up against his walls as Izuku starts moving inside him, pushing in and out. Katsuki has never felt so raw and open, his body responding to every touch and breath like a plasma ball. Izuku kisses his neck and it feels like a thousand butterflies taking off at once.
“How does it feel?” Izuku whispers, low in his ear. A shiver runs down Katsuki’s spine as Izuku nuzzles his neck. “Good?”
“Y-yeah.” He wraps his legs around Izuku’s hips, yanking him closer. "Fuck me like you mean it."
Izuku buries his face in his hair as he drove into him, rough hands squeezing his hips. "I am."
The way Izuku moves his hips is clumsy, but his sheer enthusiasm makes it feel fucking fantastic. He keeps pressing eager kisses over Katsuki's face, his mouth, moaning loudly, clutching Katsuki's hips like he would die if he let go. Katsuki would tease him for it later if he wasn’t moaning, too, grabbing the soft, curly hairs at Izuku’s nape to tug him down into a sloppy kiss. He doesn’t want this to end. He wants Izuku to keep fucking him for—
“K-Kacchan,” Izuku says, his voice strained. “I’m really close.”
He snaps alert. “Seriously? It’s been two fucking minutes.”
“I’m sorry!” He lets out a soft whimper. “I can’t hold out much longer. You're so tight, and you keep making all those cute, lewd faces. C-can I come? Please?”
Katsuki would yell at him if the fact that Izuku asked for permission wasn’t the cutest fucking thing he’s ever heard. He can’t help but grin, tightening his arm around Izuku’s neck. “Go on, then, baby. Come for me.”
Izuku's breath cuts off into a guttural moan like he was waiting for it. He’s breathing hard, face painted with pure bliss. Katsuki has never been so jealous of someone. Spent, Izuku falls forward until he’s lying flat on top of Katsuki, his head tucked into his neck, still moving with slow, shallow thrusts as he rides out his orgasm in Katsuki's ass.
The fiery pleasure has ebbed away and they’re both silent now, except for their breathing and the soft creaks of the bed. It’s almost… peaceful. That isn’t what Katsuki expected, but it’s strangely nice. Izuku makes a valiant effort to fuck in a few more times, but his dick’s softening and he gives up with a quiet sigh.
“Sorry,” Izuku says sheepishly. “I think I’m done.”
“Yeah, obviously,” he says, but he strokes Izuku’s back all the same. His fingers come away drenched in sweat. It doesn’t feel as gross as he would have considered it yesterday. “Don’t go to sleep. You still have to get me off.”
“Oh! Right.”
Izuku pulls out of him and an odd emptiness loosens his core. He doesn’t have long to feel it before warm lips close over the head of his dick. He jerks, thrusting up, and Izuku takes it without protest, cupping Katsuki’s balls in a gentle hand while he licks along his shaft. It’s sloppy, but Katsuki’s so wound up that it barely takes half a minute before blazing heat crests in his groin and pleasure floods his body, tingling along his legs.
It almost feels unfair that Izuku got him off so easily, but he doesn’t care. He’s not a virgin anymore. Strangely enough, it doesn’t feel that different. Really, he just feels exhausted. Izuku climbs off the bed, presumably to throw away the used condom, and returns a moment later with a bottle of water. Katsuki almost refuses it, but he’s thirstier than he thought, so he swallows a few gulps before falling boneless against the pillow. Yeah. This is a good feeling.
“Aftercare,” Izuku blurts out, interrupting the peaceful silence. “The internet says you should always do aftercare after sex.”
Katsuki blinks. “I don’t think it counts if it only lasted for forty-five seconds.”
“Kacchan!”
“I'm kidding, nerd. Get up here.”
The mattress dips, and Izuku snuggles up beside him, throwing his leg over his knees and wrapping an arm around his waist like a cuddly, oversized limpet. Katsuki feels a little sore, but mostly, he just feels good.
“I’m glad we did this,” Izuku says. “It was… nice.”
“Yeah,” he says, which is a pretty big understatement. “It was a good forty seconds.”
He can hear the pout in his voice. “You’re so mean.”
“You knew what you were signing up for.” He yawns. “I wanna take a shower. Where’s your bathroom?”
It’s a task easier said than done, because the moment he stands, his legs almost collapse beneath him. He grabs the mattress to steady himself and shoots Izuku a glare before he can offer to help, then stumbles to the bathroom. He can still feel the phantom presence of something inside him, which is weird as hell but not exactly uncomfortable.
It takes a while to get the water as hot as he likes, considering that the shower seems steadfast in its belief that humans should bathe at a lower temperature. The hot water soothes his muscles, washing away the mess of cum and sweat on his skin, and he watches it rush down the drain with an unexpected sense of triumph swelling in his chest. As awkward as it had been, he finally had sex, and fuck, it was good. This was a good decision. Possibly the best decision he’s ever made.
He dries himself off with a fresh towel hanging on a hook by the shower, then ambles back into the bedroom, where Izuku is laying clean sheets over the stripped bed.
“What’re you doing?” Katsuki says, frowning.
“Changing the sheets,” Izuku points out. “They’re all dirty, so I didn’t want you to have to sleep on—” He cuts himself off, cheeks flaring red. “I didn’t mean to assume you’d stay over. I just thought, maybe, in case you felt like it, you could—you’d be welcome to—”
“Stop rambling, nerd.” He fakes a nonchalant expression. “I don’t feel like cooking tomorrow, so you handle breakfast.”
A bright smile spreads across Izuku’s face. “You’re staying?”
“‘Course. I wouldn’t have wasted my time texting you if I wanted a one-night stand.” He tries not to sound flustered. "Don't make it a big deal."
His smile widening, Izuku rushes forward to hug him, crashing into him with enough force to make him grunt in surprise. “I’ll make breakfast—whatever you want. We can go on a date, too, if you’re okay with that, and, uh, maybe we could do this again. I promise I’ll do better!”
Katsuki snorts, but he’s too content to pretend it doesn’t sound absolutely perfect. “Whatever you say.”