thinking about katsuki straddling izuku after winning deku vs. kacchan part 2 and leaning back just a little bit to feel the boner pressed up against his ass.

they both freeze. the air is heavy, and they’re watching each other’s every move. red eyes on green, izuku can’t decipher the look on katsuki’s face as he cants his hips down, grinding them against his erection.

something snaps then, and the both of them start moving frantically. katsuki lets go of izuku’s arm to place his hands on his chest, balancing himself as he alternates between rubbing his ass on izuku’s dick and his own cock against hard abs.

izuku thrusts his hips up, hands moving to katsuki’s waist to gain more leverage. not wanting to break the moment, neither of them can look away from the other, heavy breathing and the occasional moan being the only things to cut through the silence.

katsuki is beautiful like this, on top of him. izuku takes in the furrow of his brows, the tension in his shoulders, the clench of his thighs around his hips and revels in it all.

katsuki is desperate, movements becoming feverish as he nears his orgasm. he leans his torso forward, sliding his hips down so their dicks can rub directly against each other, and they both let out shaky moans at the friction.

in a spur of passion, izuku wraps his arms around katsuki’s small waist, pressing their bodies together as both of them desperately thrust their hips against the other.

they come together, katsuki letting out a shout as his orgasm rushes through his body. he collapses against izuku, who holds his trembling body gently, rubbing circles into his back and running his fingers through blond spikes.

they lie there like that for a while, both of them a sweaty mess with their spend making their pants stick to their skin, until izuku realizes katsuki has fallen asleep.

listening to the blond’s light snores, he lets himself enjoy the feeling for a few minutes before pushing them both off the ground. he uses his remaining strength to carry katsuki on his back, dragging both of them to the dorm bathrooms.

leaving him on the bathroom floor for a little bit, he runs to his room to grab his bathing supplies and fresh clothes. when he goes back, he washes himself down first before turning to the unconscious boy on the floor.

his hands shake as they remove katsuki’s clothes, face in flames as he tries not to ogle him, though he can’t help himself from taking a peek at his cock. cute.

trying not to be too rough, he rinses him down gently with warm water before propping him up between his legs and shampooing his hair. izuku hopes someday katsuki will let him do this when he’s conscious, let him take care of him.

he dries him off and dresses him in some of his own pajamas uneventfully, though he does flush again at seeing katsuki in his clothes. finally fresh and clean, he carries him up to his room, not knowing where katsuki’s room key is.

though if he’s being completely honest, they’re probably in the pocket of his pants. but he’s a selfish man, and he wants katsuki in his room tonight.

placing him gently on the bed, he tucks him into the covers, smoothing blond hair down as he looks at his face, for one calm and not scrunched up in rage. he thinks katsuki is ethereal like this but kills the thought before he becomes too greedy.

something like this probably won’t happen again for a long time. as his last indulgence for the night, he leans down and presses a soft kiss to his forehead, nuzzling his nose into his hair, enjoying the way he smells just like himself.

out of both consideration for katsuki and fear of what will come in the morning, he sleeps on the floor that night, though it’s the warmest and most content sleep he has gotten in a while.

//should i continue? this was just supposed to be a short drabble but i have a few more ideas for this. also,, aizawa while watching from behind the building:

unsurprisingly, izuku wakes up to an empty room, bed made neat and tidy almost as if the night before had never happened. he knows it did, though, because of katsuki’s clothes in his hamper and the way his room, everything, just feels /different/.

aizawa calls both of them into his office before class starts, him and all might waiting for them with stern looks. but if you ask izuku, they seem almost a bit... uncomfortable?

izuku doesn’t look at katsuki while the two adults dole out their punishment, though it’s a lot less harsh than he had expected. he’s acutely aware of the other boy’s presence beside him, body heat radiating off the blond in waves. has he always been this warm?

when he steals a glance at katsuki, he seems contemplative, face softer than usual. izuku is reminded of his sleeping face but immediately shuts down the memory. now isn’t the time to fawn over something like that.

they start their cleaning duty in silence, mostly ignoring each other’s presence—or, at least, /trying to/ in izuku’s case—but he can’t stop his mind from combing over every detail from the previous night.

there’s a noticeable change in katsuki since the past few days before. he’s softer, somehow. quieter. when he gives him advice on his fighting technique, izuku can barely suppress the giddy smile that threatens to overcome his face. something between them has shifted.

but katsuki is also more volatile. not in the way he used to be. it’s more purposeful now, like a snake waiting to strike. as they clean, he’s picking fights with izuku, bumping into him and making snide comments about his cleaning.

he doesn’t understand what katsuki is trying to do until there’s a fist flying at his face. he barely manages to duck in time, only to collide with katsuki’s knee.

his back is on the ground, and he’s looking up at katsuki—beautiful, ethereal—when he realizes he’s hard. they both are.

katsuki kicks down his legs, and izuku doesn’t stop him as he climbs over him, planting himself on his lap. he hesitates for a second, conflicting emotions crossing over his features. izuku is able to make out frustration and confusion before katsuki’s movements distract him.

he rubs their groins together through their clothes, moaning softly. izuku lets him take control, knows he needs it that way, cursing at the way katsuki grinds his hips down.

this time, it’s slower, more explorative. when katsuki starts to let out little gasps and whines, izuku reaches for the waistband of the blond’s sweatpants, pulling it down under his cock.

he gives him a few strokes before katsuki is doing the same to him, trembling fingers hastily pulling out his erection. izuku wastes no time in pressing their dicks together, moaning at the contact.

katsuki isn’t exactly small, but even he flushes at the size difference as their cocks are lined up against one another. unable to stop staring where they’re touching, the blond watches as izuku uses his hand to wrap around both of their dicks as best as he could.

their cocks are slick as he glides his hand over them, both of them dripping with precome. finally snapped out of his trance, katsuki begins fucking into izuku’s hand, against his dick.

he whines as he approaches his orgasm, thrusts becoming more desperate. izuku is fascinated with the way tears gather in his eyes, wishes he could lick them up.

he settles for tightening his grip, causing katsuki to moan louder than before, and moving his own hips as much as he could.

it feels electric, the room being filled with just their pants and moans. izuku isn’t sure what causes him to say it since neither of them have spoken this whole time, but he doesn’t regret it.

“shh, i have you, kacchan. i have you,” he murmurs, and katsuki lets go. his eyes roll to the back of his head as he comes, back arching. white spurts coat both of their cocks, and izuku uses it to continue stroking both of them through katsuki’s orgasm.

the sight of the blond losing control, unsure whether to move toward or away from izuku’s touch, was what finally pushed him over the edge. his eyes latch on to katsuki’s dazed expression as he orgasms, embedding the image into his memory.

when it’s all over, they’re both breathing heavily, katsuki slouched over in his lap. izuku doesn’t dare look at him, opting to stare up at the ceiling instead. he feels katsuki’s gaze on their dicks, now soft but still pressed together and covered in their come.

he hisses when katsuki’s fingers unexpectedly press against his cock, just touching, almost exploring the feel of his skin and the shape of the vein underneath it.

the touch is gone before he knows it, katsuki picking himself up without a word and cleaning himself off with some tissues. he leaves izuku on the ground, still shocked and unsure of where they’re going to go from here.

from then on, katsuki continues to shift from one extreme to another, alternating between bouts of calmness and hostility. he shares his notes with izuku, patches up his wounds after class, even smiles at some of his jokes.

but sometimes, when they’re alone, he punches izuku out of the blue and drags him to a sparring room where they’ll go a couple rounds before ending up in the same position they always do: dicks pressed together, feverishly thrusting against each other until they come.

it’s an addictive cycle, one izuku doesn’t stop for fear of setting katsuki off again, but honestly, does he really want to? it’s terrifying to think about how fragile everything—the closeness they’ve developed, the physical intimacy—is between them.

one wrong move and everything could fall apart. that’s what izuku is thinking when he finds himself pressed up against the brick wall of the back of the U.A. dorms yet again.

he’s close, and all it takes is katsuki biting into his shoulder before he’s coming, both of them riding out their orgasms together. that’s katsuki’s new thing, biting.

izuku didn’t mind it, actually liking it quite a bit, if only it wasn’t another sadistic way for the blond to let out his frustration and aggression on him.

the aftermath is always awkward, neither of them speaking as they get cleaned up and dressed. katsuki is the first to leave, and right when izuku is about to follow him, he notices that the blond left his phone behind.

he thinks about calling out to him but decides against it when he remembers the tenseness in his shoulders and the glare in his eyes. he’s almost always moody after their hookups, so izuku resolves to catch him later that night before he goes to bed.

the next few hours pass by quickly, and before he knows it, izuku finds himself in front of a familiar door. as he knocks, he wonders which katsuki will open the door—the calm or angry one—and can only hope it’s the one that won’t punch him in the face for returning his phone.

“the fuck do you want—“ katsuki’s growl is cut off when he sees izuku, face blanching almost immediately. it takes a moment for izuku to realize why as he takes in the sight before him.

katsuki stands in front of him, wearing /his/ clothes from the night that he slept in his room. izuku didn’t even realize they were missing until now, too preoccupied with katsuki’s strange behavior.

the blond tries to slam the door in his face, but izuku is faster, managing to wedge his foot in front of the door. “kacchan, let me in!” he whines, but it only seems to spur him to push harder.

eventually, with a quick spurt of his quirk, izuku manages to pry open the door from katsuki’s hands and shove it closed behind him, leaving them alone in the room.

he asks, “why are you wearing my shirt?” a beat before katsuki swings at him, connecting his right fist with his face. “what the fuck?” he yells, face starting to throb. “can’t we do this just /once/ without beating each other up? why can’t you just communicate in a normal way?!”

katsuki laughs then, but it’s more cold than anything. maybe even scared. “don’t blame this all on me when you’re the sick fuck who likes it. you /want/ me to hurt you.” the bitterness in his voice is enough to distract izuku from the explosion in his face.

but it’s not strong enough to keep izuku from saying, “what the fuck does that mean? why would you ever think i enjoy being punched and assaulted every time you’re horny?”

izuku can see katsuki’s resolve waver slightly before he steels himself, replying, “don’t lie to me. that first night, at ground beta, you got hard after i pinned you down. then the next day, you were hard again when i punched you.

“every time we spar, you get a boner. i don’t get it 100%, but it’s obvious you like the pain. or the fight or whatever.” izuku has to pause and rub his temples at how /completely wrong/ katsuki is.

his reasoning makes sense, but the conclusion is just so incorrect, it makes his head spin.

leveling katsuki with a serious look, he carefully says, “kacchan, that first night, i was hard because you were /straddling/ me. the next day, i was already hard when you punched me because i was thinking about you.

“i’m not into the pain. i’m just into /you/.” they stare at each other for a little bit, izuku trying his best to stay collected while katsuki is already a blushing mess.

“oh,” he responds, looking down at the floor in embarrassment. the next thing he says takes izuku completely off guard. “so you don’t like the biting either?” he refuses to look back up at izuku, but he can see the smallest pout on his lips, making his chest warm with affection.

chuckling lightly, izuku answers, “no, i kind of like that.” he walks slowly toward the blond, who still has his gaze pinned to the carpet, until they’re only a breath apart. “it’s cute,” he breathes, cupping his face before leaning in the rest of the way to press their lips

together. their first kiss is soft and gentle, so much different than the rest of their relationship. it’s how they should’ve been all along if they could just /communicate/.

katsuki sighs into his mouth, pressing closer and deepening the kiss. when they break apart to catch their breaths, he wraps his arms around the shorter boy, burying his face into green curls.

izuku likes this /much/ better, enjoying the warmth of katsuki’s body against his own. and he’s sure the other boy knows, the hard-on pressed up against katsuki’s thigh being a pretty good indicator.

walking them back to the bed, he sits on the mattress, fondness welling up inside him when katsuki follows him without question and climbs on to his lap.

they continue kissing like that for a while, katsuki’s hips rolling into his own. izuku knows they’re not ready for penetrative sex, but they’re both horny, both hard, and clearly wanting more.

contemplating it, he gently pulls off katsuki’s clothes, letting the other boy do the same to him until they’re only in their boxers. one thing’s for sure, though, and it’s that izuku is going to take his time showing the blond how a loving relationship /should/ be.

he’s especially careful as he pulls down katsuki’s boxers. this is the first time either of them have seen the other completely bare, and the blond clings to izuku in embarrassment, inadvertently having his dick poking into his abdomen.

holding him close, izuku whispers into his ear, “hey, can we try something?” katsuki nods hesitantly, unsure but trusting him as he maneuvers his body.

when izuku is done, katsuki finds himself, face down, staring at the other boy’s dick. izuku is underneath him, head propped up so he could get a perfect view of his round ass. he feels izuku’s gaze on his hole, flushing as he sputters, “w-what’s with this position?”

katsuki can’t see izuku’s face, but he hears the smirk in his voice as he says, “aw, c’mon. this is fun. the view is nice, too.” /easy for him to say/, he thinks. /not like he’s the one so exposed/. he’s interrupted from his thoughts when izuku teases, “don’t bite me, now.”

he nips at his thigh in retaliation, but his smugness is blown away when he feels izuku’s arms wrap around his thighs, hands parting the globes of his ass and tongue pressing in to lick at his rim.

his reaction is instantaneous, back arching as he cries out. feeling vindictive—maybe this was his way of getting revenge for all those broken noses—izuku doesn’t wait for him to catch his breath, lapping at his rim as he feels it clench rhythmically.

katsuki gasps, hips twitching but unable to decide whether to move toward or away from the feeling. “deku, s-stop, it—hn—feels /weird/,“ he manages to choke out, body beginning to tremble.

hushing him, izuku answers, “do you really want me to stop?” as he presses his tongue a bit harder to the rim, threatening to enter. it’s a challenge. he knows his answer, can feel how turned on katsuki is by the amount of precome he’s been dripping on his chest.

katsuki lets out a long moan, shaking his head no. izuku grins and bucks his hips lightly, reminding the blond of the cock in front of him. “try not to gag,” he says softly before katsuki leans down to lick at the bead of precome at the tip of his cock.

izuku groans at that, the vibrations causing the blond’s body to shiver as he envelops the head of his dick. as a reward, izuku removes his right hand from katsuki’s ass, using it to stroke his weeping cock.

the friction makes him whine, clearly overwhelmed by all the sensations. izuku’s tongue continues to bully his rim into submission, causing it to slowly relax until he’s able to enter his hole.

half way down his cock, katsuki mewls at the feeling, choking on izuku’s length as he pushes his ass back on to his face, trying to push his tongue deeper. izuku moves his tongue around as much as he can, appreciating the heat and the way he spasms around him.

he imagines that tight hole around his cock, milking him for all he’s worth. the fantasy is enhanced as katsuki suckles on the head of his cock again, slowly working his way down until he’s about three-quarters of the way down.

it’s probably not the best, but they’re both inexperienced, and izuku can’t resist the wet heat of his mouth or the small whimpers that he lets out around his dick as he tries to bob his head diligently.

katsuki’s moans steadily grow louder, unable to contain himself as he approaches his orgasm. he pushes his hips back on that tongue at a feverish pace, nearly sobbing as his ass is tongue-fucked into submission.

knowing he’s close, izuku tightens his fist, giving a few more pumps until katsuki lets out a loud cry around the cock in his mouth, coming all over izuku’s chest.

and izuku gets a front-row seat to the entire show, sees the perfect arch of katsuki’s back, watches as his hole clenches around nothing, feels his body convulse on top of him as he rides out his orgasm.

the sight is enough to push him over the edge, coming into katsuki’s mouth with a shout. the blond chokes on it but otherwise takes it like a champ, swallowing most of it while the rest drips down from the corners of his mouth.

katsuki is still twitching from the aftershocks when izuku pulls him off his cock, maneuvers him so he’s upright on the bed. his face is completely /wrecked/, eyes glazed over and come drooling from his mouth.

izuku can’t help but lean in and kiss him, the blond too out of it to do much more than kitten lick into his mouth as he’s completely dominated. they taste like each other, but neither of them care, just languidly exploring each other’s mouths.

when they’re too tired to do anything else, they hold each other close, izuku running his hand up and down katsuki’s back as the blond clings to him.

he’s drowsy. izuku can tell by the way he doesn’t contort his face, showing a soft expression and the beginnings of a small smile on his lips. they need to get cleaned up—the come on his chest now wiped on to the sheets—but he can’t bring himself to disturb the moment.

he settles for pressing a gentle kiss to his forehead, asking, “you good?” he doesn’t get a verbal response, just a hum and arms tightening around his waist.

they have so much to work out, so much miscommunication to fix, but he gives into the temptation, saying, “let’s sleep for now and work things out tomorrow. i’ll take you on a date, and we can talk things through.”

“okay,” katsuki mumbles.

after a pause, izuku continues softly, “maybe not yet if you’re not comfortable, but i want to be your boyfriend eventually.”

katsuki doesn’t say anything, and izuku thinks he fell asleep, tucking a stray lock of blond hair back behind his ear. that’s fine. he would just tell him in the morning.

until he hears a small, “me too,” whispered into the crook of his neck, so soft he would’ve thought he imagined it if it wasn’t for katsuki nuzzling into him, pulling apart to press a kiss to his cheek before cuddling right back up to him.

izuku burns with affection all the way down to his chest, feels tears well up in his eyes at the gesture as he tightens his hold on the blond.

yeah, they’re going to be fine.

— end —