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the list of things that kirishima loved about katsuki bakugou could wrap around the entirety of the planet twice and then some. from the surprise he gets when he runs his hand through ashen blond spikes expecting something other than soft and silkiness , to the way his pupils dilate in those crimson eyes when he's got a strong opponent in front of him. kirishima has his biases though; he loves all of the variations of his smile. his murderous grins in the middle of a battle. his wobbly smirks when he bites back laughter over one of those damn extras saying something funny. then there's the smiles that are a privilege for kirishima alone - the ones that are soft, sweet, loving , barely there unless kirishima does or say something to make it more prominent.
they've got the common room to themselves for the time being, the TV drolling on in the background. bakugou's situated between the open space of his legs, back to kirishima's chest, arms coiled lazily around his stomach, and the redhead can't help but give his boyfriend a little squeeze. there's small grunt in response, bakugou shifting some in his position until he relaxes again with the slightest nuzzle into kirishima as he does. the redhead's lips pull into a grin, and he sighs gently through his nostrils, amused at the fact that the smallest things from bakugou can jumpstart his heart. it's always the small things that catch him off guard, because bakugou is such a loud and dominant presence, but when you're allowed to see those moments of delicacy, those moments of simplicity where the blond can simply be, it's wholly different experience to his usual. kirishima is honored to be the one bakugou chose to share those moments with.
so kirishima takes advantage of this tender space they've crafted and let's his heart run with kisses from the back of his bakugou's head down to the shell of his ear. his stomach twists in the best way when he feels bakugou squirm a little bit against his chest. he hears him huff a breath and bakugou, who's glancing at him from his peripheral, frowns softly, attempting to will away the flush of pink that dares to heat his cheeks.
" oi , kirishima, we're not in our rooms dumbass."
"but we are alone."
"yeah, but who knows for how long."
"don't worry - someone comes in, we stop immediately and go to either of our rooms. no biggie."
"mm.." bakugou hums in response, not in the mood to continue arguing, not when his skin's buzzing from where kirishima's lips had touched down and he's missing the feeling. he'd much rather give in this time. "we get caught, it's on your ass."
"noted." kirishima chuckles, taking that as his cue to continue and placing his lips right back where they belong. he returns to his trail of kisses along the shell of bakugou's ear, relishing in the way he shifts again with a small sigh so gentle that kirishima nearly misses it. he only presses closer, the limbs snaked around bakugou’s waist tightening slightly, enough to exude that softhearted possessiveness that drives bakugou just a little bit crazy.
it’s when the blond feels his boyfriend’s lips mosey down the tender surface of his neck , down to a spot below the ear , right between the back & side of it, that bakugou settles a hand over kirishima’s arm and squeezes it, biting back the squeak that almost forced itself past the tight line of his mouth. kirishima shifts a bit, but his ministrations continue, remaining in the same area. those sweet - tempered kisses are a killer on this particular spot, evidenced by the way bakugou’s gritting his teeth together and squirming lightly against the other’s hold.
the redhead notices the changes in bakugou’s demeanor, but before he can even lift his head to inquire what’s wrong, he catches a glimpse of the wobbly grin that bakugou is so obviously fighting, along with his cheeks pooling with petal pink warmth and a glare shooting from his eyes that kirishima is well acquainted with.
“st ⎯ stop kissing me there, it ⎯⎯” he grumbles, knowing damn well that the way he cut himself off is all the information kirishima needs to decipher his predicament.
the grin that blossoms upon kirishima’s lips flips bakugou’s stomach, and suddenly the arms coiled around his waist have gained motion again; yeah, he’s screwed.
“it what?” kirishima asks in a tone much too saccharine, much too sing - song, “does it tickle ?”
bakugou growls, as if his current disposition wasn’t enough to override any sort of intimidation he assumed he could draw from.
“shut the hell up, i’m not ⎯⎯”
“not ticklish ?”
bakugou can only see some of kirishima due to sitting against him, but the way his boyfriend’s grin grows into something sharper, a little more smug, has his fight or flight response activating. unfortunately, he isn’t exactly able to do either, not with the way kirishima’s got him in a hold and has a goddamn quirk that was basically made to counteract his own.
“because, i don’t think that’s true, katsuki.” kirishima goes on, savoring the biting intake of breath from the boy in his arms when he speaks his first name. he rehomes his hands on bakugou’s sides and just leaves them there, unmoving, but bakugou is so fucking aware of them. “you’re not a liar right? you never lie. so if you’re someone who never lies, then you’ve definitely gotta be ticklish.”
he’s going to kill him. all of those empty threats of murder have been leading up to this situation, bakugou’s certain of it. except, his mind and his body aren’t synced up, and the last thing he could ever want at this moment is for kirishima to stop.
“oh my god⎯⎯ shut up and let me go, you dumbass.” bakugou snarls with no bite, and to his surprise, kirishima’s hands loosen their grip and there’s an immediate spark of panic within the pit of the blond’s stomach.
“sure, if that’s what you want.” kirishima’s voice is lower than prior, above a whisper but barely, and cocky enough to piss bakugou right off. that self - satisfaction is duly justified however, when bakugou nearly slaps his hands over his boyfriend’s to maintain their place.
“i .. just⎯⎯ ugh, do whatever you want, it’s not that big of a damn deal..” he absolutely refuses to glance through his peripheral at kirishima, who’s grinning from ear to goddamn ear and beaming with a fresh brilliance like he’d just stolen light from the sun.
“baby, you are SO cute,” the glee in his voice is palpable and hits bakugou like a semi - truck, all adoration and compassion etched into each syllable, “telling me i can do what i want, aren’t you sweet? well, what i wanna do is tickle you. i wanna hear my favorite sound in the whole world.”
nevermind, it seems like kirishima is hellbent on killing bakugou this time around. there’s no way his complexion could heat up any redder than it is, he’s already squirming just from the other’s words and the hands have returned to his sides but have yet to move again, and god , kirishima knows exactly what he’s doing.
“you⎯⎯ just..! shut UP and do it alreheHEHEHADY!” the fingers settled on him start scribbling at the same time he barks his demand, which results in it dying off into startled giggles from the explosive youth. kirishima’s heart flutters in his chest, the grin he wears softening up in an instant.
“hm.. where was that spot again? oh!” kirishima moves to nestle his lips back against bakugou’s neck, in that same sensitive area he’d discovered earlier, and covers it in butterfly kisses.
“AHA⎯⎯! waHAhait! shihihihit, nahahat theHEHEre!” bakugou doesn’t have the spoons to oppose the second squeak that rips from between his lips, his hands gripping onto kirishima’s forearms for grounding, lest his palms start to crackle and pop.
“not there? not where? not here?” the redhead leans in close once more, sucks in a breath that bakugou can feel from his diaphragm, and before he can shout words of protest, the damage is already done. the raspberry blown against his skin is a straight shock of ticklishness that has bakugou reeling, wiggling in his boyfriend’s grasp like an unearthed worm in a halfhearted attempt to escape.
“fUHUHCK⎯⎯ NOHOHO⎯! kihiHIHIRISHIMAHAHA, staHAHAP!” his giggly commands fall on deaf ears as the other blows not one, but three more stupid little raspberries into that new little spot below his ear, one after the other.
kirishima relishes in the way his boyfriend’s laughter heightens in volume and pitch, the wide smile plastered across his face bright, carefree, and seems so uncharacteristic for someone like him. again, kirishima thinks back on the fact that he’s been granted bakugou’s trust and favor; he wouldn’t willingly allow anyone else to see himself like this, much less be the very cause of it. it makes his heart sing and swell with love, his eyes shining of it.
as if on some untimely cue, the sound of the dormitory doors swinging open catches both students off guard and it takes a matter of a moments for them to untangle from one another and scoot an appropriate distance away, acting as though they’d been merely watching television.
kirishima greets the small group of kaminari, ashido, and sero as they enter the common room from the hallway, whereas bakugou merely grumbles, forcing the color from his cheeks and ears to dissipate before one of the others noticed. kirishima stands up from his seat on the couch then, subtly motioning for bakugou to do the same. he fakes a yawn and reaches for the ceiling, pretending to be tired as a means to excuse himself and bakugou. the group bids them both a good nap, with ashido reminding them that dinner will be soon. on a genuine thanks, kirishima bounds to the elevator with bakugou hot on his heels.
all he does is toss a knowing grin in bakugou’s direction, and catches that slight shiver upon his shoulders, but feels goosebumps prickle up his arms when those pretty crimson eyes stare back into his own with a glaze of impishness. now that he’s free to make a move and they’re on their way to the privacy of a bedroom, bakugou isn’t going to let kirishima off the hook that easily. it’s time for a little revenge .