Izuku keeps cumming prematurely. It's to be expected, really, he was a virgin when you met and he gets worked up easily. You've never held it against him- in fact you find it pretty hot. He always keeps going, though it can be hard for him. Too intense. And embarrassing in his eyes. He's a firm believer in making your partner cum first. So you had to come up with something to help him hold off for a few minutes, for his sake.
That's how you end up on his lap, telling him to talk you through his last homework assignment or his favorite anime. He rambles through equations or plot points in extreme detail while you ride him, asking him questions to keep his focus off of your pussy and on whatever topic he chose. It works pretty well- he doesn't cum within the first fifteen minutes if fucking you, and you think it's hot when he rambles. It's a trait about him that initially attracted you to him in the first place. You love your nerdy little boyfriend and his rambling <3
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Sex chocolate with Hawks, Dabi, Aizawa and maybe Toshinori???
⋆ ft. izuku ⋆
⋆ this is written as if the guys didn’t know they’d eaten the chocolate and how they’d react to the treat. sorry I didn’t put Toshinori in this, I’m not quite sure how to write his personality yet. (ó﹏ò。)
𝛏 master list link 𝛏
// @emmab3mma hope you enjoy! ₊˚ʚ₍ᐢ. ̫.ᐢ₎₊˚✧ ゚.
Izuku’s lips would tug into a sheepish smile, no doubt thankful for the sweet treat pick me up. His eyes would brighten, a satisfied hum dancing in the air.
Izuku would be unbearably jittery out on patrol that evening, hopping from the sidewalk on one side the street to the other, green light crackling in his wake. He’d do it mindlessly, thoughts wandering to you and what you currently could be doing.
Suddenly, he’d be flailing mid air when he vividly imagines you on your knees, plush lips stretched so wide on his cock he knows it must hurt your mouth. Izuku would stumble when he hit the concrete, catching himself on the bench nearby.
Izuku’s expression would twist from calm to horrified, thoughts running a mile a minute when he steadies himself and realizes his cock is…hard. Throbbing. Straining against his hero suit. He’d make haste running to the nearest building with a public restroom.
Izuku would shut the door to the restroom and lock it before anyone could even notice he entered. He’d be frantic, shoving his pants down mid thigh as he leaned against the wall and hissed through his teeth when the cool air hit his freely bobbing cock.
He’d have a million concerns in the back of his head but not be able to focus on a single one. Izuku would have a one track mind, wrapping a hand around himself and jerking until he came in less than 20 seconds to the image of you on your knees.
Izuku would be so embarrassed afterwards, cheeks bright pink as he adjusts his clothes and washes his hands.
Being as smart as he is, he’d have a suspicion this is related to the chocolate you gave him and he intends to find out once he’s home. Once he returned, he’d tease you until you’re on the edge of tears and blurting out the truth, fucking you until your mind whites out and you scream his name.
Lucky you.
Keigo would give you a flirty grin, winking playfully as he snatched the chocolate from you and swallowed it within two bites. You’d give him an unimpressed look but he’d just laugh like it’s the funniest thing in the world.
Keigo isn’t surprised when he got a boner while soaring through the skies on the way to his agency. He’d been thinking about you anyways and his dick getting hard wasn’t uncommon when he thought of you. It’d be fair to say that happened often, if he’s honest.
Keigo would take note of the violent flush crawling down his neck and snaking under the fuzzy collar of his flight jacket. He’d suck his bottom lip in between his teeth and adjust his cock in his pants so it’s sticking straight up instead of outward.
He’d be able to somewhat focus on the business meeting he didn’t want to attend in the first place, only being reprimanded a few times more than normal for zoning out.
Keigo’s pulse would thunder. He’d wear a neutral expression, letting his chin rest in his propped up hand as he sent a feather to find and turn on the air because why the fuck is it so hot in here?
He’d text you something filthy as discreetly as he could under the table, biting his knuckles when you sent back a picture of yourself with your tits on display. Keigo would come to the conclusion that maybe he was a bit more pathetically horny than normal and he needed to ditch this meeting yesterday.
Keigo would go straight home, ignoring anyone who had tried to speak with him on his way out. He’d find you on the couch with nothing on but an oversized shirt and waving what’s left of the chocolate bar at him with a smirk when he entered through the balcony.
He wouldn’t even be upset when you told him what you’d done. He’d just crowd close, looming over you with a wolfish grin that shot a thrill down your spine.
Keigo would succumb to the aphrodisiac completely. He’d bend you over the backrest of the couch at hip level and wrench your arms taut behind you, fingers circling your wrists to secure you in place.
Keigo would have no mercy, sliding his cock in your tight pussy before you’re turned on enough to take him smoothly. He’d send a feather down to play with your clit until you strain to escape, not stopping despite your pleas because “this is what you wanted, isn’t it baby? yeah, so stop yapping and take it.”
In the end all you can do is nod, because if you truly wanted him to stop you’d only have to say the safe word.
Shouta would raise an eyebrow with a bored expression on his features. He’d roll his eyes and eat the chocolate after you pushed your lower lip out and fluttered your lashes at him.
Shouta’s a sucker for you.
He’d be grading papers that afternoon, knuckles rubbing at his sleepy eyes in the office of your shared home. He’d take a break, pressing his palms to his eyes and resting his elbows on the desk.
A scenario would pop into his head, one where you sat on the edge of the desk while he’d relax in his chair and lazily eat you out. He can imagine the way your clit would feel against his tongue, how warm and soft your pussy would be on his lips.
Shouta would lean back in the chair, a hand absently dropping to his lap to palm his cock and he’d be startled at just how much he’d filled out already. His dick hot and sticking to his inner thigh. Shocked at the unavoidable thick warmth swirling in his belly when it’d usually take a bit more than a brief daydream to get this worked up.
He’d be certain that you had something to do with this and irritation would lance through him. He’d sit in the kitchen once he’s finished, arms crossed and cock stubbornly refusing to flag until you returned home.
Shouta would ask you about it as if he were asking a child if they had stolen a cookie from the cookie jar. Easily, you admit to it. No hesitation, no shame, just a smug air about you.
Then, Shouta would make his fantasy a reality. He’d eat your pussy until you were right on the edge of cumming and then he’d stop. He’d speak condescendingly, saying “poor baby, your pussy just wants to cum doesn’t she?” as he sits you roughly down on his cock.
He’d spank you a few times, teasing you a bit more but he’d make you cum so intensely your toes would cramp — and then he’d keep going until his own brain got fuzzy.
Touya would say fuck no at first. He doesn’t like chocolate. Until you mention there’s something special about the sweet and he assumes it’s an edible. You don’t bother to correct him because, technically, it is an edible, just not the kind filled with weed.
Touya would be leaning his back against the railing on your balcony, angled so he can peer into the open doors of your living room. He’d have a cigarette dangling from his lips, scrubbing at his cheek with one hand because yeah, his cheeks are typically roasting but they’re never this hot.
He’d shrug it off and nonchalantly light up the cigarette with his pointer finger. He’d startle as the tiny flame bursts into a fireball that he really didn’t mean to create when you stride past the doorway in soft shorts that show the crease of where your thigh joins your ass.
You’d freeze mid step and turn to stare at him incredulously, lips parted slightly when the aftershock of heated air damn near singes your skin.
Touya would be flustered. Cheeks painted rosy pink with embarrassment at the lack of control over his quirk. He’d scowl harshly, pinching his brows together as he dropped and stomped on his cigarette to put it out. He’d stalk towards you and snarl “why the hell are you wearing those fucking shorts?” as if his sudden overbearing lust is your fault specifically.
You’d roll your eyes and begin walking in the direction you’d intended in the first place but Touya would snatch your wrist tight enough the bones grind together and drag you to your bedroom. He’d ignore your obviously fake bewildered expression and shove you onto the mattress. He can’t focus on the fact that you seem to be going along with this a bit too easily.
His cock would be jumping and pushing painfully against the zipper of his jeans before he so much as kissed you. He wouldn’t get either of you truly naked, he’d just slide your soft shorts to the side and unzip his jeans. He’d shove your shirt to your collarbone so he could watch the way your tits are about to bounce.
Touya would yank your ankles up and over his shoulders until the backs of your thighs press into his chest and then fold you in half like you’re a fucking blanket. He’d tilt his hips until his tip catches on your pussy and then he’s shoving his cock all the way inside to steal the breath from your lungs.
Touya wouldn’t have the self control to stop for a long time that evening and you’d almost regret giving him the chocolate. Almost.
A lazy Saturday morning, he has to get up later to finish some papers but that's a problem for later izuku. You wake up earlier than him for the first time ever, you admire his beautiful features whilst hes in slumber land.
His forest green hair being portrayed in the most beautiful lighting, said lighting brightening up his face despite being asleep, he's such a bright person he doesnt even need the suns array of beautiful sunshine for that. His slightly chewed lips dry yet so plump and kissable, the freckles that popped out more due to the sun's colors beaming on his beautifully tanned skin. He was gorgeous.
You leaned down to plant a gentle kiss onto his sleeping face, cupping his cheeks as you do so. The touch on his face makes him jolt and try and scoot away, his eyes squeezing shut and annoyance being painted on his features, he groans and tries to pull away but only to stay in the same place due to you holding his face.
Izuku was annoyed and opened his slightly crusted eyes to see your face, his eyes immediately softened. Finally being able to see his gorgeous emerald green eyes, you smile in content. He hums and closes his eyes again before you pepper kisses all around his face.
“ good morning~“
You sing in his ear, making him hum once more. He didn't want to be awake, izuku wanted to lounge around all day and be lazy with his other half before he had to go and teach a bunch of noisy kids, who he did love dearly.
“ you're always awake before me! I'm surprised I managed to get up before you!“
Izuku peers his eyes open slightly to look up at you with furrowed brows in annoyance, he groans and rolls his eyes before closing them again, all you can do is giggle at your adorable husband. You scoot in closer to him and squeeze his cheeks making him huff.
Izuku then sits up and yanks you into him making you bury your face in his chest. Your eyes widened in surprise but you weren't exactly complaining. He holds you close with a tight grip ensuring you can't move even if you tried.
“ go t’sleep baby. ’know you're tired, j’s get some rest hon.“
Izuku lazily gets out, his speech slightly slurred and his voice raspy and groggy do to the morning. He was a morning person, by all means but sometimes all he wanted was to be lazy with his significant other, and you seem to be ruining it by touching him whilst he's trying to sleep.
“ ’zuku m’not tired.“
“ shut up.“
Trying with all of your might you manage to squeeze out of his arms and roll onto of him making him turn over on his back, he groans and looks up to you with angry eyes ones you never really seem to see.
“ can I cockwarm you?“
His once angry eyes were now wide and confused. You wake up and the only thing on your mind is dick? Really? He groans again with a blush to his freckled and still baby-like cheeks, a scar on his right cheek. He was hesitant, he really was fathoming it, debating, thinking about it, whatever you want to say he truly was.
Izuku was having a hard time deciding, he did want you to do that to him only because he was particularly pent up, you two hadn't had sex in about 3 weeks? Thats far too long for someone like izuku, he would never force you to do something of the sort, normally you initiate sex and he happily obliges, but you both have been very busy recently and haven't had time to do much more than hold each other when nightfall returns at the end of everyday.
Izuku finally had an answer, he gulps and looks back up at your happy and waiting eyes. You would've been okay with either answer, really. You just wanted him to be inside of you. With a blush still on his cheeks, he nods to you before looking away.
“ I want a verbal answer my love.“
He sighs at your words, eyes shutting as he clears his throat trying to get rid of the grogginess of the morning time.
“ yes, you can c... cock.. warm me...“
Izuku manages to get the confirmation out as you giggle and lay down beside him, confused he follows you insuit, you scoot back into him and pull down his sleeping shorts just enough to get his flaccid cock out. You stroke him a little trying to get him to harden up, gentle tugs at his fat and heavy cock in your hand, the weight of it is always nice but the stretch is always better. The thought alone brung a smile to your face.
Izuku watched your movements closely, admiring the way you were so sweet and gentle with his member, so careful with such soft movements it made him twitch in your hand. With that, you knew he was ready. He gulped as you turned around and pulled your underwear to the side scooting back onto him and pushing his cock inside of you.
You both wince and groan and make some kind of noise as he tries to push his way inside, you were tight and he felt just how much so, going straight to his head as he gulped down hardly. His brain was getting fuzzy from the intense squeeze to his cock, you really should've prepped yourself first. with a couple of minutes waiting you finally manage to get him inside, he bottoms out almost immediately he's always so needy and impatient when it comes to things like this he ended up thrusting into you making you fall forward and moan.
“ zu what are you.. doing?“
You ask slightly out of breath, he was choking on his breath trying his hardest not to absolutely ram his cock in and out of you like he knows he needs. God izuku was so horny he just wanted to fuck you so badly.
“ s- sorry.. hon I- ngh~...“
He sentence was ended by a muffled groan, you really were squeezing his cock so tight. You take breather and scoot back into him, his cock still being buried deep inside. It makes him moan softly into your ear as you get closer, a beautiful noose that you always welcome and are always pleased to hear. He hums in a whiney tone on accident, getting extremely red when you laugh at the desperate sound escaping your poor husband.
You sigh happily as you can feel his heavy cock stuffing you full, twitching occasionally when you pulse around him. Izuku held you close wrapping his hands around your stomach, he buried his face in your neck trying to lull himself back to sleep, you intoxicating smell so sweet and driving him absolutely feral. He tried so hard to go back to sleep but he was having a hard time, his cock was so deep inside of you and only getting deeper as time passed yet he wasn't fucking you. Not like he wanted to.
Izuku sighed desperately and defeatedly as he looked down at you only to see you asleep with a smile on your face. For fucks sake. There was no way he was getting back to sleep, and absolutely no way hes not blowing his load deep inside of you.. if he even gets to cum.
mha reactions to their kid being disrespectful towards their mom ?
mom! reader, girl dads! tdbkdk, inspired by the newest scenes i had to witness of my little cousin this holiday season. i can't use my childhood because i met 'mr belt' and i never misbehaved since.
IZUKU MIDORIYA as . . . the nice cop.
— izuku would probably be gentle with his parenting, and that's why he's in this situation in the first place. he's the type of parent that tries to reason with his child with a very nice voice, which ends up accidentally raising a manipulative child. even so, he'll never raise his voice towards his child, but he'll definitely get more serious. especially if she's being disrespectful towards his wife.
it was a tranquil sunday afternoon, where you and your family had visited izuku's mother for lunch. excited for the community pool, your daughter went dressed in her green sundress and her little mermaid swimsuit underneath. her smile dropped when she heard the news.
"i'm sorry, sweetie, the pool is closed!" you frowned, to which your daughter started crying. trying to comfort her, you guided her towards the bathroom to change clothes. what you weren't expecting though, was...
"don't touch me! leave me alone, you witch!"
izuku had never sprinted towards you faster in his life, eyes widened in disbelief. he lowered down to his daughter's height, as he called her attention. "hey kiddo, you didn't really mean that, right?"
your daughter nodded, "mommy won't let me go to the pool" she cried. "she's mean and a witch!"
izuku sighed as he patted his daughter's head, ruffling her hair. "the pool is closed, baby. we can come back tomorrow when it opens, okay? but never call mommy that again, yeah? you hurt her and my feelings that way. now, apologize to your mom."
"'m sorry mommy."
"and you'll never go to the pool again" you whispered to your husband, to which he nodded. "and then, maybe, we won't take you to the pool because you weren't nice to mommy. you have to love your mommy and treat her well" he added.
your daughter cried some more because she would never go to the pool again.
KATSUKI BAKUGO as . . . the restrained cop.
— katsuki would try to be gentle, but with his tone of voice, it would come out horribly. and if. his daughter is an exact copy of him? he would be pissed off and would probably ask you to reason with her first, because fighting fire with fire is horrible. when he finds out your daughter is disrespectful to you, though, he has to control himself not to scream at his child.
trying to teach your daughter to eat different foods was hard. and during the holidays? it was a nightmare.
when you sat beside her trying to spoon-feed her a small piece of turkey, she gagged. "gross! i'm not hungry. mommy made gross food! ew, ew, ew!"
katsuki's head quickly turned to the table where you sat, trying to reason with your daughter. as you fed her the food, she chewed it, and then opened her mouth. she spit. the food. on her hand.
katsuki had a face that read 'i know damn well she didn't, as he stepped closer. when you asked your daughter to please eat and to not waste any food, she snapped.
"shut up mommy!"
"who do ya think yer talking to, kid? huh? that's your mom" katsuki snaps, which earned a sob from his daughter. he realized he should've used a softer tone, but tough love, right? he was raised like that and he turned out fine.
"kid, do you know that mommy's hurt by the way you talked to her? see how ya started cryin' when i yelled? momma feels that way when ya don't treat her well. apologize."
your kid had never apologized quicker.
muttering a soft 'thank you', you turned to your daughter and helped her clean up her hand. katsuki, in the meantime, started wondering.
was the turkey he baked really that gross?
SHOTO TODOROKI as . . . the traumatized cop?
— shoto would try to do everything he can to not resemble his father. and if he ended up with a troubled kid, he would be very patient. if his daughter is disrespectful to his wife, he'd definitely be upset. he would also try to reason with her. he would pull the 'you wanna know how i got this scar' if things get really serious.
when you and your daughter were arguing upstairs, as you tried to dress her up for another todoroki family reunion. when she didn't want to get dressed, she cried.
"i'm going to tell daddy you hit me."
"sweetheart, please listen to me—"
bang.
your daughter threw herself onto the desk to her right, and started weeping more tears as she wailed, "daddy, mommy hit me!"
shoto ran up the stairs to find your weeping daughter and you with the most distressed look on your face. "did you?" he asked, to which you scoffed. "do you really think—"
"—i know you'd never" shoto cut you off, "but i had to ask. she needs to learn about trust, and not to lie."
your husband turned to her daughter, picking her up and cradling her on his arms. "where does it hurt?" he asked, as your daughter pointed at her forehead. his lips placed quick, caring kisses on your daughter's forehead as his expression turned more serious. "i want you to tell me the truth, (daughter's name). did mommy really hit you?"
your daughter looked around, her gaze finally fixating on the ground as she muttered a quiet 'no'.
"then why did you say that?"
she cried some more as she muttered nonsense into your husband's shoulders. shoto's hand cupped her cheek so she would look at him. "do you know how i got this scar?", he asked, to which she shook her head.
"my family was not very nice, and i ended up hurt" he stated, "and mommy is doing everything she can for you to feel loved. is this how we should be with mommy?"
your daughter shook her head.
"your mommy is very caring and nice with you, and we should be the same way with her. now, what do we say to her?"
"...sorry mommy."
"that's much better, my love. let's not do this again."
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your career starts to blow up when you were 17 years old. having to star a movie inspired by all might and all might himself make a cameo in that movie, many people start to recognize your talent.
and midoriya izuku is smitten since then.
when his first interview as the freshly debuted hero, he got asked, “what's your favorite movie?”
“The Mighty Hero, definitely. i love (name) (last name)'s performance in that movie. she's so incredible, no wonder she wins the best new actress. and i love all might's cameo too.”
it's so obvious that he's crushing on you. hard.
now, 21 years old, he found himself lining up in your meet and greet event. he had practiced all night— hell, a whole week just so he wont look foolish in front of you.
“its okay deku, you got this! you're one of the top heroes after all.” uraraka said with a cheerful tone. iida nods enthusiastically.
“it's just a meet and greet event. what could go wrong?” todoroki shrugs.
now, it's izuku's turn. you recognize him, rookie pro-hero who always brings you up in his interview. deku, you remember his hero name.
SUMMARY: When your pro hero boyfriend comes home to find you studying, he suddenly takes a great interest in helping out. You find his methods... questionable.
TAGS/WARNINGS: nsft, hysterical literature (reading out loud while sexually stimulated), pro hero deku, deku still has ofa, support tech grad student reader, slight intelligence kink, gn + afab reader, cunnilingus, established relationship, aged up characters, fluff (3k)
NOTES: Hi guys! I have been in survival mode as of late and the writing has been slow going; my sincerest apologies for how long it’s taking me to burn down my @ficsforgaza backlog. But I finally had the time & energy on my hands this weekend to work on this one and I had such a blast!! I hope I’m not too rusty—and if I am, I hope you enjoy it as much as I loved writing it regardless lol. Love you and thank you always for your patience. Happy Holidays!!
Sometimes, you thought you could tell your boyfriend was near, even before you heard his key in the lock.
It was something to do with his power, you’d always suspected—as a support engineer unduly interested in other people’s capabilities, you’d spent hundreds of hours turning it over in your head. It was the unnatural immensity of other people’s powers, you thought, pulling and coiling just beneath the surface of Izuku’s skin. In close proximity, after prolonged use, its presence felt like a shiver up the back of your neck.
You felt the barest hint of it now, an unsettled feeling creeping into the marrow of your bones, and you sat up on the couch just as you heard the scratch of Izuku’s keys at the door.
One For All fit cleanly into Izuku’s own unwavering intensity somehow, like the last piece of his puzzle. Though one would certainly never think so looking at him as he spilled through the door, pink-cheeked from the cold, all bright eyes, sweetly angelic features, and a riot of wild green curls. He looked windswept from the biting winter breeze. He also looked too kind to be carrying the sort of power he did—too sweet and eager and lovely.
“Look what the wind blew in,” you grinned at him over the back of the couch, after assessing he was well. Your eyes tracked the sinuous movement of those broad shoulders as he yanked his mouthguard over his head, the flex and pull of his bicep as he hung it beside the door. He was moving without pause, no sign of injury or muscle strain , and his suit was intact. Ordinarily you didn’t mind if there was a bit of shredding about the abs as long as he came back to you whole and hale, but in the winter you didn’t like him wandering about risking the chance of frostbite.
Your heart fluttered when Izuku returned your smile with one of his own, so beautiful and bright, chasing away the cold he’d tracked in like a warm sliver of sun.
“Lots of small, easy fights today?” You guessed, judging from his intact suit but clear whiff of power about him.
Izuku scrubbed a hand through that riot of curls, exposing the reddened shell of a cold ear. “I only had to use blackwhip a couple of times,” he said as he shouldered the door closed behind him, the muscle of his thighs flexing enticingly as he stepped out of his boots.
You gestured at the pot of soup you’d left warming on the stove, and the veritable pile of crusty bread beside it. Warmth and carbs, exactly what you would have wanted if you were a pro hero fresh off a long day of patrolling in the snow.
Izuku’s eyes fixed on it with an obliging amount of interest, and he almost tripped over himself in the genkan in his haste to get to the kitchen. “I love you,” you heard him say, muffled through a mouthful of bread, heard the clatter of the silverware drawer and a bowl being placed on the counter.
You smiled and turned back to the book in your lap, a particularly dry, knotty text on robotic imitation learning that had had your eyes drifting closed for the better part of an hour. It was the last you’d need to get through for your Wearable Technologies graduate course, and something you were deeply interested in incorporating into your design practice. You could train a piece of equipment on how an individual pro hero moved and deployed their quirk, and use predictive modeling to deploy assistance functionalities within milliseconds if you got it right—such as immediate cooling in pro hero Shouto’s temperature vest the moment he ignited an arm.
The implementation was going to be so cool—but the theory was so mind numbing.
You felt the couch sink in beside your feet, and Izuku peered interestedly at the title in your lap.
“Introduction to Robotic Imitation Learning,” he echoed, and you could hear the note of excitement in his voice. You suppressed a fond smile, knowing he was already thinking through the same applications you had—he was just as much of a nerd as you were.
“Introduction to Snoozing and Napping,” you grumbled, turning back to your page. “There are only so many words on the Kalman filter framework a brain can handle before the human mind shuts itself down.”
Izuku hummed in interest around a spoonful of soup, propping himself up against your leg. The exterior of his suit was still cool from the outside, and he groaned with relief from the warmth of your skin, even as you hissed at the chill.
You knew he wanted you to go on, so you generalized for him. “It’s an algorithm used for robotic motion planning—you not only take measurements of the thing you want to model but you account for uncertainties to predict the probability that something is going to happen.”
Izuku nodded, taking another spoonful of soup, gesturing for you to go on.
You summoned up the willpower to explain joint probability distribution, pleased when Izuku easily managed to follow—he’d always been a quick study, especially of anything that could be employed in the service of heroics. You’d long thought if he hadn’t been gifted his quirk, he would be an insane support engineer.
He managed to finish his entire bowl of soup in the time it took you to explain, and housed another two slices of buttered bread with the sort of alacrity you’d only ever seen in pro heroes and professional athletes, making you smile while you spoke.
His spoon clinked softly against the edge of the bowl as he set them aside on the coffee table, and he hooked his chin over your knees as you finished explaining. In the setting sun from your windows he looked especially lovely, the kind, angular planes of his face brushed in gold, softening the spots of his freckles.
His eyes were especially bright, the way they always were when something in particular had caught his interest, and he smiled at you again over the tops of your knee caps.
“I admire how smart you are,” he told you, in the simple, straightforward way he always gave out compliments. It was like a shot to the heart every time, and you could feel your face warm with the praise even after years of receiving similar compliments.
You reflexively flapped a dismissive hand. “Not smart enough to have internalized it all! I have mostly been falling asleep to it,” you promised him.
He tilted his head, a green curl falling into his eyes. “I know you won’t have a problem when you’re awake.”
You shifted your legs with embarrassment, and a long fingered hand came up to cup the front of your thigh, as Izuku turned more fully towards you. You could feel the warm, hard planes of his chest against your shins, the line of his jumpsuit’s zipper pressing insistently just below your knee.
“Gotta try to impress you somehow,” you joked, your skin prickling as Izuku’s fingers absent-mindedly drew a pattern across your thigh. You could feel the heat of his hand through the thin material of the leggings you’d lounged around in all day, the chill finally chased away from his skin now that he’d come inside and warmed up.
“You do impress me,” he said in his soft, gentle tone. Which made your cheeks and nose burn hotter.
You knew you did, and the steady faith Izuku had in the people around him was one of your favorite things about him. It still made you feel like a middle schooler with a crush to think about, though, the intensity of your feelings too much for one body to handle.
“I will study hard to live up to your faith in me,” you promised, unable to help the goofy smile you knew you were giving him.
Izuku’s chin shifted against the tops of your knees, and he pressed his mouth to the knob of your left one, leaving a smiling kiss. “Tell me more?” he asked, fingers still sliding softly over your thigh.
“I’ll read it to you as I go, then,” you said, turning back to the brick of a tome, propping it up more firmly on your stomach as you adjusted yourself against the couch arm. Izuku’s eyes watched you over the top of the pages, that emerald gaze tracking your face closely.
“‘The algorithm works via a two-phase process: a prediction phase and an update phase’,” you began, trying to turn your attention away from Izuku and back to the text. “‘In the prediction phase, the Kalman filter produces estimates of the current state variables, including their uncertainties. Once the outcome of the next measurement (necessarily corrupted with some error, including random noise) is observed, these estimates are updated using a weighted average, with more weight given to estimates with greater certainty.’”
Izuku’s long fingers traced firmer lines across your thighs, almost like he was taking notes. He layered another kiss along the line of your knee, eyes glittering at you as you read.
“‘The algorithm is recursive,’” you continued, “‘It can operate in real time, using only the present input measurements and the state calculated previously and its uncertainty matrix; no additional past information is required.’”
You almost jumped as Izuku’s mouth trailed lower, into the space between your knees, leaving kisses along your inner thigh. His fingers gently pulled one thigh away to make space for him in between, and you cleared your throat, trying to return to the text at hand.
“‘Optimality of Kalman filtering assumes that errors have a normal–that is, Gaussian–distribution,’” you read on. “‘The following assumptions are made about random processes: Physical random phenomena may be thought of as due to primary random sources exciting dynamic systems. The primary sources are assumed to be independent gaussian random processes with zero mean; the dynamic systems will be linear.’”
Izuku let out a soft breath, insinuating himself further between your thighs. Your own breath came out a little uneven as he bent over you, mouth tracking dangerously towards the inseam of your leggings.
You paused, but Izuku fixed you with a look of his slightly-darkened eyes. “Please—keep reading,” he said, his tone a little lower than it had been a minute ago.
You swallowed in shocked understanding, skin tingling. You felt yourself nod, as Izuku’s fingers strayed to the waist of your pants, dipping below the band.
You let him slowly peel your leggings down, your underwear with them, adjusting as needed to make it easy for him, even as you tried to return your attention to your textbook.
“‘Regardless of Gaussianity, however, if the process and measurement covariances are known, then the Kalman filter is the best possible linear estimator in the minimum mean-square-error sense,’” you quoted, nearly squeaking when Izuku pressed his mouth to your hip, his curls tickling the skin of your belly. His hands gripped either side of your thighs, palms square and rough against your skin, and you tried not to shiver with the feeling.
“Um—‘Although there may be better nonlinear estimators’,” you said, then nearly jumped out of your skin when Izuku pressed his mouth to the core of you, only the strength of his grip stopping you from accidentally kicking him in surprise.
“Oh my g—uh! It—um—‘It is a common misconception perpetuated in the literature that the Kalman filter cannot be rigorously applied unless all noise processes are assumed to be Gaussian,’” you managed, before your cut off into a groan as Izuku layered a hot, sweet kiss over you, tongue dipping carefully between your folds. “Ah-–Izuku—”
Izuku petted a thumb gently over the top of your thigh to show he was listening, even as he swiped his tongue over you again, a long, firm stroke that had your thighs flexing in his hold. He laved over your clit, sucking ever so slightly, and your grip almost tore the edge of your textbooks as it tightened.
“Keep going,” he urged briefly, then did it again, punching a groan out of you.
“Extensions—oh—‘Extensions and generalizations of the method have also been developed, such as the extended Kalman filter and the unscented Kalman filter which work on nonlinear systems,’” you read on, voice shooting up nearly into a squeal when two of Izuku’s long, firm fingers pressed into you, as his mouth moved over you again.
“Ah! Oh my god—the—um, the basis—-” you said, breath growing short. Izuku’s fingers unerringly found the spot inside you that made you twist in his grip with the ease of long practice, and his jaw worked as he kissed you so shockingly filthily. You could feel something already starting to build up behind your navel, a fluttery lightness, an insatiable insistence on more.
“‘The basis a hidden Markov model—oh, fuck—such that the state space of the latent variables is continuous and all latent and observed variables have–ah!--Gaussian distributions,’’’ you recited, your voice tripping up further into a register that sounded more like begging than reading.
Izuku’s fingers worked you, long and thick and perfect inside you, as his tongue drew unrelenting circles around your clit. Stars seemed to spark in your vision, and your eyes squeezed shut, losing your place on the page as your hips flexed into his face. You felt suddenly very floaty and lightheaded, and not at all in a position to keep going.
Still, you tried to refocus your attention.
“‘K–Kalman filtering has been used successfully in—oh—multi-sensor fusion—ah, ah!--and distributed sensor networks–fuck, please, Izuku—to develop distributed or consensus Kalman f-filtering,’” you said, your tone nearly a cry.
Izuku groaned softly, sucking gently as his fingers curled inside you. It made your veins spark under your skin, your legs shaking in Izuku’s hands. You abandoned your grip on your book to seize the arm of the couch, clawing desperately at the fabric.
“Please, Izuku,” you cried, hips bucking towards his mouth.
The book tumbled off your stomach but you hardly noticed, gaze refocusing on the way his eyelashes fluttered as he licked you. His fingers played gently within you, a maddening press that was simultaneously too much and not enough, and his other hand came up to slide under your sweater, plucking gently at your nipple.
You lost yourself to the feeling—caught between the mind-melting curl of his fingers, the delicate suction of his mouth, and the careful pinch of your nipple. A delicious heat curled through you, waves of unbearable pleasure, and you could hear yourself babbling nonsense—garbled syllables of Izuku’s name, and every entreaty you could think of, a hundred thousands mores and oh pleases.
Izuku abandoned your nipple to pull you more firmly against him with a strong arm curled under your thigh, pressing you even harder into his mouth.
You muffled a scream in the sleeve of your sweater as he sucked you harder, tongue laving over you in loving strokes. Only his terrible strength held you down as you writhed beneath him, and then his fingers twisted in a way that had your vision whiting out—and you were suddenly thrown out over the edge of your pleasure.
Izuku licked you through it as you squirmed and begged and cried out his name, your climax seeming to last for eons.
You were panting hard when you finally slumped into the cushions of your couch, the ceiling seeming to swim in and out of focus before your eyes. When you gained enough control of your body again you looked down at Izuku, finding him watching you with a satisfied, almost shy curl to his mouth.
“You’re beautiful,” he told you, emerald gaze glittering with sincerity. “You’re so smart.”
Impossibly you felt your heart swell with even more love for him, and you seized his shoulder, dragging him up over you so you could kiss his mouth. The taste of yourself on him was embarrassing yet thrilling, and you petted a pleased hand through Izuku’s wild mess of curls as you kissed him.
“Well you are amazing,” you told him, swiping a thumb over his cheek fondly, smoothing over his freckles. A gorgeous watercolor of pink washed over his cheeks and nose at the proclamation, and you could hear his fingers flex in the cushion beside your head.
The sight of him flushed and waiting over you like another small something inside of you, like a pilot light, and you let your mouth pull into a wry grin.
“I hope you know I learned nothing though,” you said casually, your plan for your next steps already forming in your head. You let a hand trail carefully down Izuku’s flank, tracking towards his waist. “I think maybe I might need a few rounds for it to really sink in.”
Izuku’s ears went red against the green of his hair, and you felt your smile widen. “Maybe you could read it to me this time?” you asked, guiding him to roll under you, retrieving your book from the floor as you did so.
You settled yourself on the tops of Izuku’s thighs, feeling the hard press of him against your core, as you placed your textbook into his waiting hands.
Izuku’s answering smile was all the permission you needed. You directed him to start from the beginning of the chapter, and he did so in that soft, lilting tone of his you so loved. And then your fingers trailed up to the zipper at his collar.
It was time to return the favor—wholeheartedly.
REFERENCES: Kalman Filtering (Wikipedia)
I took the passages our Reader recited from here because I do not actually understand Kalman filtering at all and could not organically come up with feasible text for her to read through. Sorry in advance to the author of this page lol.
hello! could you please do an izuku fluff one shot where he loves to sleep with reader in her dorm? i use she/her pronouns but gender neutral would be fine aswell if you’d prefer💓
“I LOOK BETTER IN THE DARK.”
IZUKU MIDORIYA x fem!reader.
summary: what the request said!
warnings: reader and izuku have known each other since middle school, izuku being traumatized 😔, set before the second war!fluff otherwise i believe! kinda angsty for a minute.
a/n: guys… i miss him. he’s so sweet pls don’t hurt him anymore horikoshi. also ily anon ty for requesting this omg. pls send more 🤍
—
it wasn’t uncommon for your boyfriend to randomly show up at your dorm. normally, he would arrive approximately ten minutes after texting you that he was going to try to take a nap.
but, you knew your boyfriend and you knew he would arrive with his hair tussled and eyes wide and disappointed – from not being able to sleep on his own. you were used to izuku knocking on your dorm room at random hours, you’ve even grown accustomed to this routine.
currently, you’re sat by your door. playing with your matching all might keychain that izuku got you for your birthday when you were young.
knock, smack! knock.
you smiled at the noise, you made that knocking pattern up after one time while trying to knock on your door barely awake, izuku fell asleep and smacked his head off of your door then clumsily tried to knock to cover up the embarrassment he felt in that moment.
you stood up, rushing to your door. a soft smile already on your face.
“hi. i-” izuku tried to defend himself, yet again, he forgets that you are used to this.
“you couldn’t sleep, i know.” you softly nodded and motioned for him to come in.
he smiled crookedly as he rubbed the back of his head, trudging toward your bed and flopping on it.
it was late, around 9 pm, the moonlight replacing the suns glare.
you stood by the door for a minute, admiring your boyfriend.
he laid with one of his hands behind his head lazily, the other hand playing with your all might keychain. he looked so cute. his lips were turned upwards at the sight of the keychain.
the moonlight made his freckles pop, his dark-green hair looking more abnormally fluffier than usual.
you moved towards your boyfriend, plopping down beside him and lifting the covers over you two.
for some reason, your boyfriend just looked so ethereal during calm moments like this. just you two. no fighting for your lives or breaking bones. just peacefulness.
“i think i look better in the dark.” izuku mumbled quietly as he noticed your staring, he turned to look at you. his expression was shy and you felt your heart swoon.
you quietly chucked, “you always look good, izu.” you softly whispered as he became flustered. the boy curled up against you as he moved to rest his head on your chest.
tuffs of hair tickled your chin, causing you to giggle slightly as you played with his shirt. he wore a shirt that you gifted him at the start of the year, to celebrate him getting into U.A. with you.
“what happened to napping in your own room today?” you teased, not noticing your boyfriend moving his hand so it was closer to yours.
“i had a nightmare.”
your teasing smile dropped, you should’ve known. izuku’s been having terrors constantly after the first war. it was miracle when you and your classmates had even convinced him to come back to U.A. and rest.
“sorry, they just don’t happen when i’m with you.” he said quietly after noticing your silence, his words slightly muffled into your chest as you kissed his head.
“i’m glad they don’t.” you looked down, noticing his hand beside yours, he has been awkwardly fiddling with the sheets this whole time. he was scared to hold your hand. he didn’t want to hurt you.
you softly sighed, interlocking your fingers with his. you knew he felt safe when people held his hands. izuku began drifting into a slumber, the feeling of you holding his hand comforting him.
“i love you.”
you looked down at him, expecting him to reply only to see his eyes shut, mouth opened slightly as he slept. you felt your own eyes close as you basked in the feeling of holding your lover.
izuku midoriya is one of the strongest people on earth right now but when he’s with you, he’s just your izuku. just a kid who deserves a break from society and a well rested sleep.
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a/n: my baby. THIS WAS A LITTLE OFF TRACK and very short, i’m sorry anon i got a little carried away 😔😔 i hope you enjoyed this! 🫶