a/n: based off this !! - longest thing i've written >.<
kirishima x katsuki x reader
you get up and run over to the door. “you actually came!” you squeal, grabbing katsuki’s hand and yanking him inside.
“easyyy.” kiri chuckles. “you’re gonna scare him off.”
“it’s fine.” katsuki mumbles with pink cheeks, letting you drag him over to the couch while kiri grabs the bag katsuki is holding on his shoulder.
“c’mon let’s get comfy.” you push him back on the couch and squish in next to him.
“i’ll get the lights.” kiri hums.
the room goes dark and you press in closer to katsuki, giggling when you hear his little gasp. kiri takes the seat on the other side, leaning back and spreading his legs so his thigh is pressed right against katsuki’s. you reach for the remote, holding onto katsuki’s thigh for support as you stretch as you stretch.
“do you just wanna watch an episode of something since it’s late?” you look back at katsuki over your shoulder.
“whatever you want.” he nods.
the living room is illuminated in red as you open netflix and lean back on the couch. kiri reaches across the couch and plucks the remote from you, stealing a kiss, smiling at the sound katsuki makes. kiri pulls back but you chase after him and kiss him again, a small giggle bubbling out of you.
“thought we were gonna watch something.” katsuki clears his throat.
“stop pouting.” you lean back, quickly pressing a kiss to katsuki’s cheek.
katsuki’s heart stops and starts again, face going red as he stares at you. “i..”
“want another?” kiri smirks and kisses his other cheek.
katsuki’s chest is heaving now, mind racing at what’s going on. is he dreaming? did he fall asleep instead of actually coming over? he’s in heaven sandwiched between the both of you and now you’re both kissing him? he doesn’t know what he would do if you guys actually kissed him.
“you good?” kiri cups the side of katsuki’s neck.
“uhh yeah.” katsuki nods.
“were those your first kisses?” you poke his cheek.
“they totally were.” kiri chuckles.
“want a real kiss?” you whisper, brushing his hair back.
“what?“ his voice cracks.
“she asked if you wanted a kiss.” kiri grins, thumb stroking along the warm skin of katsuki’s neck. “or do you want a kiss from me first?”
“i.. yeah.” he breathes out.
kirishima cups the other side of katsuki’s neck and turns his head towards him. he searches katsuki’s eyes, slowly leaning in to check if there’s any changes but all he can see is katsuki’s desperation. katsuki doesn’t move when kiri presses his lips to his, its soft, just a peck, but it leaves katsuki breathless nonetheless.
“my turn.” you hum and katsuki turns to you. “if you want.”
“i do.” he glances at your lips. you peck him softly and pull back. “can i.. have another?”
“wanna try another kind?” you tilt your head.
kiri leans across katsuki and takes your lips, licking into your mouth and sliding his tongue against yours. you moan softly, melting into him and letting your tongue move around his mouth. katsuki stares at the both of you, sweats getting tighter by the second as you two makeout in front of him.
“like that.” kiri pulls back.
“yes.” katsuki pants, tips of his ears going red.
you lean forward and press your lips to katsuki’s again, licking along his lips, pushing your tongue into his mouth when he gasps. his tongue follows yours, shy as you slide against his. kiri squeezes katsuki’s thigh and he groans into your mouth, hips bucking up causing kiri to chuckle.
katsuki’s face burns but every thought leaves his head when kiri attaches his mouth to katsuki’s neck. kiri slowly kisses his way up his jaw and meets your lips on katsuki’s. you kiss him once and then he replaces your lips on his. katsuki groans when kiri pushes his tongue in his mouth, sinking into the couch as you and kiri take turns with his lips.
“your sweats seem a little tight kats.” kiri’s hand slides up katsuki’s thigh.
“wanna take em off?” you press a kiss to the side of his mouth.
“i.. nghhh!” katsuki whines when kiri brushes against his throbbing cock. “yes!” his eyes squeeze shut.
“let’s go to the room.” kiri nudges his nose against katsuki’s jaw.
“okay.” his breath shaky.
you and kiri get up from the couch, each taking one of katsuki’s hands and leading him down the hall. you both walk him to the edge of the bed and turn to him. you reach up and kiss him again, your fingers push up the edges of his shirt and pressing your palms against his abs.
“can we take this off?” you mumble against his lips.
“yeah but.. you guys too.” he’s given up trying to rein in his blush.
you step back and turn to kiri and pull his shirt up, tossing it to the floor and kiri’s hands are on you the next second. he has you turn towards katsuki, making a show of slowly lifting your shirt until your tits come into view. katsuki’s eyes widen when your nipples harden and kiri takes them between his fingers.
“wanna play with em? she likes it.” kirishima coos.
“can i?” katsuki answers right away.
“mhm, please.” you nod your head quickly.
he steps forward with shaky hands outreached, kirishima chuckles and grabs his wrists and guides them to your chest. katsuki’s fingers flex into the plush, small puffs of air leaving his lips as kiri guides his fingers to your nipples.
“roll, pinch, tug.. bite.” kiri grins when katsuki’s eyes widen.
kirishima moves his hands and katsuki brushes his thumbs over your nipples, glancing at your face with each pass. he gives a little pinch and you gasp, pushing back into kiri but arching your chest towards katsuki. he glances back at kiri with parted lips and shivers when he locks eyes with him.
“hm?” kiri gives him a lopsided smile.
“what about you?” your lashes flutter open at katsuki’s words.
“what about me?” kiri tilts his head.
“do you.. like your nipples played with?” katsuki tilts his head.
“i.. i don’t know.” his pupils blown wide.
“wanna find out?” you step forward.
you lean forward and circle one of his nipples with your tongue. kiri comes up beside you and curls his tongue around the other, wrapping his arm around katsuki’s waist to help him stay standing. you give a little nip and katsuki lets out a moan, tossing his head back, knees going weak.
“let’s go to the bed.” kirishima lifts up. “still want these sweats off?” he tugs on his waist band.
kirishima hooks his fingers into the grey fabric, making sure to get his boxers down in one go. katsuki lets out a hiss of air when his cock springs free and steps out of the sweats with bright red cheeks. when he looks up he sees you and kiri peeling off your pants and then you both turn back to him.
“excited katsuki?” kiri looks down at katsuki’s flushed tip that’s leaking with pre.
“be nice.” you hum, stepping closer to katsuki.
“i am.” kiri chuckles. “lay back kats.” he nods to the bed.
katsuki sits on the edge of the bed, looking up at you and kiri, letting out a soft moan when the two of you join him. you both help him scoot up the bed, each hooking a leg over his thighs and reaching for his twitching dick.
“can we touch you?” you trail a figure up his thigh.
“yeah.” he chokes on the word he says it so fast.
you trace one finger up his shaft, circling around the head as he lets out a low groan. “she likes to tease.” kiri hums, wrapping his fingers around katsuki and slowly pumping as you continue to thumb at the pre.
“fuuck.” he tosses his head back into the pillows.
“should me and my pretty girl take turns with you?” kiri slides his hand down and cups katsuki’s balls. “hm?” he grins at the way katsuki is bucking his hips up.
“yes.” his cock throbs at the thought.
kiri pulls you closer, his other hand slipping between your thighs to get you ready for katsuki while he’s still lazily pumping him. he chuckles when he finds you already wet, slipping two fingers into your sopping walls with ease. katsuki props himself up to watch, lips parted and eyes heavy as he stares at your pussy and the way it sucks in kiri’s fingers.
“she’s gonna do that to your cock.” kiri squeezes his hand, watching katsuki fall back into the pillow as a glob of pre oozes out.
“wha- what are you gonna do?” katsuki fists the sheets.
“watch her ride you and then..” he hums. “get you ready and fuck you if that’s what you want.” katsuki cums all over kiri’s hand. “yeah?” he grins.
“want that.” katsuki nods, hips bucking up, cock still hard and twitching.
“alright, come on, pretty baby.” kiri slowly pulls his fingers out of you. kiri helps you get into position, holding your hips as you straddle katsuki’s waist. “hands here kats.” he nods.
katsuki’s hands replace kiri’s and he stares up at you with pink cheeks and hearts in his eyes. kiri reaches between you both, wrapping his fingers around katsuki and sliding him through your slick. katsuki’s chest heaves when kiri pushes him into your pussy.
“give him a good ride baby.” kiri kisses the side of your neck.
you watch kiri curl up next to katsuki and brush the hair off his forehead as you slowly start to sink down. katsuki’s fingers flex into your sides with each inch you take, your gummy walls slowly melting his mind. when your ass finally meets his thighs you let out a soft moan feeling him so deep.
“better not cum yet.” kiri scoots down to kiss at his neck.
“it’s- ngh! feels so good.” katsuki gasps.
“i know it does.” kirishima nips at his pulse.
you lift up on shaky knees and then plap back down pulling a moan from both you and katsuki. you start bouncing up and down and katsuki can’t take his eyes off the way your tits jiggle.
“i- i am!” his stomach flexes.
you grab onto his hands and yank them up to your tits and have him squeeze. he jerks his hips up, abs flexing at the way you pulse around him. you roll your hips after every slide down, brushing your clit against his pelvis, making yourself even wetter and messier for him.
“she- she feels too good.” katsuki shakes his head, eyes squeezing shut.
“hear that pretty girl?” kiri unlatches from katsuki’s neck. “pussy’s too good for him.” he eyes the creamy ring you leave behind on katsuki’s base after every smack.
kirishima reaches forward and thumbs at your clit. “kiri!” you clamp down on katsuki’s cock.
“i’m gonna cum!” katsuki’s voice cracks.
“not until she cums.” kiri kisses the side of his head.
your tummy tightens, thighs burning as you ride him faster, kiri’s thumb relentless on your clit. katsuki pinches your nipples and that’s all it takes to have you cumming. your thighs shake, katsuki still humping up into you, eyes rolling back.
“can i- hic! can i cum?” katsuki almost cries.
“go ahead.” kiri coos and katsuki lets go.
“fuck, thank you! fuck!” he sobs as he fills you.
you collapse forward onto his chest and smash your lips to his, slowly rolling your hips, smiling into the kiss when you feel him twitch back to life. “gonna lift off now baby.” you kiss the side of his mouth.
you lift off, legs shaking as you collapse on the bed next to him. kiri trails a hand up katsuki’s thigh, slowly wrapping his fingers around his half hard cock. “still want me kats?”
“yeah?” you curl into katsuki’s side. “gonna be a good boy for kiri?” you giggle watching his cock twitch at your words.
“kats has been such a good boy tonight.” he lifts one of katsuki's legs, pressing a kiss to the side of his calf. kiri grabs his other leg and presses a kiss in the same place. “gonna have to get you ready.”
“kiri’s big but it feels so good.” you run your fingers through his hair.
kiri dips down, still holding katsuki’s legs up as he kisses down his thighs. he licks at his dick, groaning at the taste of you still coating him, making his way down to his balls, sucking one into his mouth while you suck little marks onto the side of his neck. katsuki’s eyes roll back when kiri’s tongue traces around his hole.
“kiri..” it’s a breathless plea.
“hm?” another circle of his tongue.
“hah- fuck!” katsuki’s toes curl.
kirishima keeps up his soft licking, each broken gasp from katsuki spurring him on. he pushes his tongue past the tight ring and katsuki moans, legs shaking in kiri’s hands. kiri reaches for the bottle of lube he grabbed while you two were busy and and coats his fingers, just barely fucking his tongue into him.
“gonna start with a finger.” kirishima lifts his head up. “you tell me how it feels.” he locks eyes with him.
“o-ohhh okay.” katsuki pants as kirishima circles his hole with his slick finger.
kiri slowly pushes his finger in, only to the first digit until he feels katsuki relax then he moves to the next one. katsuki is gasping, dick twitching and leaking all over his stomach as kiri starts to pump his finger.
“how does it feel katsuki?” you nuzzle into his neck.
“good.” he pants. “so good.”
“think you’re ready for another?” kiri curls his finger and katsuki moans.
“yes!” hips wiggling back down.
you dote on katsuki while kiri starts to push a second slick finger in, dripping down some of the lube directly onto his hole as he pushes them in. katsuki adjusts quickly, becoming a whining mess in seconds. he tosses an arm over his face, hips bucking up as kiri spreads him open. kirishima works him up to a third finger, spreading him open and fucking his fingers in deeper.
“think you’re ready for kiri?” you lick up the shell of his ear.
“you change your mind at any point you let me know and we’ll stop.” kiri slowly pulls his fingers out. “okay?” he pours a generous amount of lube on his cock.
“okay.” katsuki lifts his hips as kirishima gets into place.
kiri rests katsuki’s legs on his hips, grinning when katsuki locks them into place. he pushes softly at katsuki’s hole, slowly easing just his tip in and hissing at the tightness. katsuki blinks up at him, mind emptying as he focuses on the stretch. you reach down and slowly start pumping his cock, whispering the sweetest words in his ear as kiri pushes in another inch.
“i.. i-” kiri stops his movements at katsuki’s stutters. “gonna cum.”
a smile spreads across kirishima’s face at his words. “you can cum, kats. let it out.”
you keep pumping him even as he cums, watching the way his thighs shake as kiri continues to push in. katsuki is babbling now, hiccuping in pleasure, finally letting out a low moan when kiri finally settles against his ass.
“you did it.” you coo, kissing along his jaw.
“s’big.” katsuki blinks up at him with heavy eyes.
“you did so good for me.” kiri rubs katsuki’s outer thigh. “let me know when you want me to move.” his own abs flexing at the feeling of katsuki clenched around him.
“now.” katsuki bucks his hips up, sending the both of them into whiny messes.
kirishima slowly starts to pull out, pushing back in even slower no matter what katsuki says. he takes it slow until he feels him relax even more and then he starts to pick up the pace. each push of his hips back in he searches for that one stop that will have katsuki cumming again.
“kirishima!” katsuki gasps, ropes of cum shooting across his abs. “that- i- hah! fuck ‘s so good.”
he’s fully relaxed now and kirishima finally starts to let go a little more, fucking into him with more purpose, chasing his own high. you’re still pumping katsuki’s over sensitive dick, kissing across his cheeks as he shutters.
kirishima’s abs flex, feeling his pleasure rapidly building at the way katsuki is clamping down around him. he looks at you with hearts in his eyes, taking care of katsuki so good while he fucks him. his feelings become too much and he can’t stop the words about to tumble out of his mouth as he’s right on the cusp.
“i.. i love you guys so much.” kirishima’s eyes tear up. “my pretty, pretty babies.” he’s choked up. “kats? katsuki.”
“hmm?” he blinks up at him, head in the clouds.
“you’re not going anywhere.” his hands flex into katsuki’s legs. “staying right here with us.” he nods, grunting as his orgasm starts to wash through him.
kiri slowly pulls out, watching the way katsuki’s face scrunches at the loss and the way he relaxes into the bed. he gets on the other side of katsuki and the two of you shower him with kisses and praise.
“you did so good.” “sounded so good.” “felt so good.” “looked so pretty.”
katsuki’s cheeks get redder and redder at each word and kiss, fingers digging into each of your waists. kiri leaves for a couple minutes to grab some water and snacks while you continue to pepper katsuki with kisses. when kiri returns, you both turn to him, welcoming him back into bed and thanking him as he dotes on the both of you.
“i was serious kats.” kiri brushes his hair back.
“hm?” his eyebrows scrunch.
“we’re not gonna let you go.” kiri shakes his head.
“you’re stuck with us.” you kiss his cheek.
“for the night?” his cheeks heat.
