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yndrgrl · 11 months

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your classmate, yandere! bakugou, is deeply & utterly infatuated w/ shy, little you, & he isn't afraid to tell you just how much you occupy his mind.

fem! reader. quirkless! au. ooc! bakugou. long ass fic. soft! yandere.

a/n: based on this video (https://youtu.be/BoHAw_pEtOA), i'm literally OBSESSED w/ it. it's like, imagine being so stunning to someone that you're on their mind 24/7 like GAHHH WHAT.

warnings: slightly disturbing content, nsfw, dirty talk, stalking, swearing, very much "joe goldberg" vibes, smut asf, male masturbation, degrading, sexsexsex, gagging, praise

youtube

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you are sweet. you are a gentle, kind soul-- so shy & reserved. to the big, bad katsuki bakugou, you are truly eye-catching. the way you didn't draw attention to yourself & yet would say the most profound things during online discussion posts made him wonder what was going on in that cute, little head of yours.

the way you're just the complete opposite of him made him crave you.

the first time he noticed you, you walked through the classroom door with your bulky headphones on that were clearly a part of your first-day-of-school outfit. enthralled was the only way he could describe how he felt. maybe shocked as well. how could someone so beautiful just walk into class?

he scoffed at his own thoughts, knowing damn well if he heard kirishima or denki say anything like that, he would've rolled his eyes. if she's beautiful, he thought, then she must have a terrible personality that i don't want to get to know.

unluckily -but also luckily- you were assigned the seat right beside him. you, with your pearly, white teeth, flashed him a courteous smile. you placed your bag on the floor, shrunk into your seat, & pulled out your binder.

what. a. nerd. katsuki laughed in his head. he could already read you like a book, he believed. a goody-two-shoes who stutters after every word, no confidence, & lives in her own little bubble, is what he deducted.

& yet he couldn't help but notice how fragrant your perfume smelled. it reminds him of a time when he was at peace, without a worry in the world. "god, how much perfume does a girl need," katsuki loudly said.

it took you a second to register that, beyond the music playing through the speakers of your headphones, there was a voice muffled. slipping your headphones down around your neck, you questioned, "i'm sorry, did you say something?"

"whatever," katsuki mumbled beside you. you felt bad, not meaning to ignore him. however, before you got the chance to apologize, the bell rang, & the professor walked to the front of the classroom. a professor that he could already tel he would hate, by the way.

that was the first day of the semester.

katsuki saw you everywhere after that. it's not like he wanted to or anything. the campus should have been big enough for the both of you, but it wasn't. he would see you at lunch with your goody-goody friends, or walking back to your dorm building with your heavy bag, or in different classes that you didn't sit with him.

one day, as the days grew slightly colder, katsuki needed to blow off some steam. he didn't know what was making him pent up. correction: he didn't want to admit that he knew why he was all pent up. since when can a person can make the great katsuki bakugou pent up?

since the first day of the semester, that's when.

bakugou, in a tight-fitting compression shirt & sweatpants, sauntered into the campus gym with his army green duffel bag slung over his shoulder. at this time of day -that being 6 in the morning- the gym was bare. only the early birds & forced athletes occupied the gym.

& apparently, so did nerds.

there you were, in all your glory. you wore black leggings that accentuated your legs. your silky, soft hair held up by a clear claw clip. your beaten up converse told the story that you are an avid gym-goer.

stationed in front of one of the only squat wracks that had a window view, the morning sunlight gazed upon your features. the soft hue made bakugou choke on his own spit. as he gawked your stature, he watched as you took sips from your water bottle. then he watched as you went to the bar, ducked under, & got ready to squat. he felt something twitch as you began your set.

"hey, bakugou~" a feminine voice spoke, causing him to almost jump. he shifted his bag so it hung in front of him. "whatcha doooing?"

"mina, what does it look like?" he scoffed.

"it looks like you were staring at-"

he cut her off. "i wasn't staring at anyone. it's just weird to see nerds like her in the gym."

"nerds like her?" she questioned, then she quickly changed the subject, "whatever, you're gonna work out with me & kiri, right?"

after that, bakugou deducted you were an anomaly. he learned how kind & attentive you are when he just so happened to read a text you sent out between you & a friend. he learned how confident you truly can be when you believe it's just you-- no eyes looking at you. he learned that your reputation was the opposite of his.

you see, bakugou was rough around the edges, to put it softly. he wore edgy clothing that made heads turn, thanks to his fashion designer parents, of course. he was proud to show off how big his muscles were & how many tattoos & scars littered his skin. he often skipped lectures, which didn't matter in the end because of his high scores on the exams.

on the other hand, you were just a beam of heaven-gate sunlight. always getting the best grades, acing tests, showing up on time, & taking pretty notes with pens, no need for pencils because you never mess up. you were also quiet, almost seeming untouchable.

the first time he caught himself truly thinking about you was late at night. he fell asleep on his dorm bed after a day of ditching classes. soon, images popped into the black void. it was a blur, colors mashing together until it was clear. there you stood, a gasp escaping your pink lips. it was as though he was watching a movie of himself.

he touched your body, scorching your skin with a red blush. he squeezed your thighs, your ass, your tits. nowhere left untouched, & you liked it. your fingers tangled themselves into his blonde tresses. you pulled him closer & begged in his ear to stick his heavy cock into your sopping pussy.

he awoke, breath heavy & a thin layer of sweat on his forehead. his dick was still incredibly hard. it was almost painful. his roommate/classmate/best buddy, kirishima already left for his early morning class & wouldn't be back until later that afternoon. katsuki knew that.

in hopes to dull the pain, he took his cock into his hand & started jerking it. though it helped, he needed something more. he took a breath, & with his other hand, he unlocked his phone & went onto instagram-- your instagram.

the most recent picture you posted was from summer. it was a college of the outfits you wore & activities you've done before fall semester. his favorite one was a candid your friend must've took. you were on the beach surrounded by people katsuki didn't care about. you were in such a scandalous swim suit that left little to the imagination. it was taken from behind so it shamelessly displayed how your swim bottoms did nothing but cover your important bits.

god, what he would do to you if he ever saw you in the swimsuit. he would bend you over, slip your bikini bottoms to the side (because he couldn't waste any time taking it off) & fuck you senseless in front of everyone. he would make you clean off his dick with that pretty, little mouth of yours. he would-

he came. he came all over his abs, & yet his cock was still throbbing. still beating for you. "shit," he whispered. as much as he hated it, katsuki was often self aware of his emotions. it's a nerdy thing to do, he knows. however, after finishing to the thought of you, he knows that he's obsessed with you, & there's nothing he can do so why fight it?

it was another day, another lecture. there sat katsuki, slumped in his seat before you even entered the class. as you did, he watched as your beautiful eyes connected with his & widen with shock. he hasn't been in class in a week, there was no big exam in class, so you were curious why he even showed up.

walking towards your desk with your eyes averted to the floor, katsuki took your figure in. he still couldn't get over how your fashion sense reflected your personality, your aura, perfectly. you seemed so comfortable, nearly confident & he loved it.

you knew he was staring; it would've been unnerving if it were anyone else. however, you found katsuki unbelievably attractive. you were flattered-- of course. what if i'm just being delusional, you wondered, denying that he was looking at you. curiosity would've gotten the better of you if you could hold eye contact though.

you sat in your seat beside him. as per usual, you took out your binder of notes, your colored pens, & placed your headphones around your neck like you do every day in this class. the professor announced that, because it is a communications class, it's important that everyone communicates. the assignment was to create a simple, few-slide presentation introducing your passion project for the rest of the year. dedication at its finest, everyone. it was an easy assignment that required nothing but a few sentences pulled out of your ass & a slides template you can download online.

as soon as he was done with his expectations for it, he let his students loose. the professor was clearly not in the mood to teach for whatever reason. you considered it a blessing because you have stacks of homework & a pile of laundry waiting for you after classes.

you pulled out your laptop you've had since forever. after signing in, you started immediately on the project. it's better to get it out of the way then to forget about it, you told yourself.

you were about to slip your headphones back on when someone questioned, "what are you doing yours on?"

it took you a second to realize it was your deskmate. it took you two to realize he was talking to you.

"um... i'm sorry?" you looked at him, confused. you didn't have any friends in this class. not that you minded.

the blonde hard head scoffed & said, "god, are you deaf? what are you doing your project about?"

"oh, um," you looked back at your computer. the blinking edit line taunting you. "i don't really know yet."

"tch, really? we're almost a month into this class," he responded. "i expected a nerd like you to be already on the last assignment for the year."

"i-i haven't really found the time, i guess."

"yeah right, don't sweat it with an explanation, nerd."

there was a silence, a silence you decided to fill.

"... what's your project about?"

"none of your damn business," he said back. that's your sign you never talk in the class again.

"hm right, just asking," you muttered, going back to brainstorming ideas you could build upon for the next year that doesn't sound too niche. or maybe you want to do something so niche that no one would know if you were right or wrong. so many options.

"i'm gonna do mine on chemical explosives."

he was talking to you again. does that mean he wants to talk with you? only you? you were looking to far into it, but you couldn't help but blush.

"oh wow, that's pretty hardcore," you responded quietly, as not to disrupt everyone else's small conversations. "what made you choose that?"

"it's a passion project; that's a passion of mine," he said as-a-matter-of-factly. he was so reserved, it only added to his bad boy charm.

you took a deep breath, deciding to -for the first time in your college life- to put yourself out there & pointed out, "the curriculum says we have to present our projects to someone of our choosing... would you want to present it to each other?"

fireworks.

you asked that & it felt as though fireworks blew up in katsuki's heart. his stoic face didn't show just how excited he was that you were the one to ask him. if you asked him to be his partner, then you've clearly been thinking of him, & if you're thinking of him, you're practically all his, &-

"yeah, whatever. you better have an interesting passion project."

that was the very first, full-blown conversation the two of you shared.

katsuki replays that moment in his head, thinks about what he should've said differently, about how he would've made a move if the two of you were alone (which he probably wouldn't have).

you ran even more rampantly in his mind. every thought crossed back to you. he constantly wondered how you were doing, what were you doing, who you were with. it drove him mad, giving him a headache. there was no medication he could take to soothe it. he found that he was only at ease when you were in sight or ear shot.

you were his clarity, & what sane person lets their clarity go? it started out small & in such a subconscious way.

katsuki was wandering the campus as he waited for his friends to get out of class when he spotted you. you must have a thing for windows because you sat on a lounge chair facing the grand window in the library. you were focused on your computer screen, so unaware of your surroundings. your brows furrowed, probably thinking about your passion project. your earbuds played whatever podcast you decided to listen to.

so, you're studying by yourself, katsuki took a mental note of that. when he did, he felt the pressure on his temples relieve. he entered the library for no other reason than you. you didn't notice him, why would you? he sat on a table behind you with his phone in his hand. katsuki's ruby eyes darted around the library before opening his camera & snapping a quick photo of you. he told himself that it would be the last time he would take a photo of you like that.

he lied to himself.

as the school year continued on, his private folder of sneaky pictures of you only grew & grew. at first, it was once every so often, but addiction kills, & he just couldn't stop.

the change that came with you was noticeable. the usually brash & unpredictable katsuki was now collected & cool. one thing that didn't change was the permanent scowl etched on his face.

his friends could see through his one-note facial expression. so it was only natural that, during a hangout in one of the dorms, they would ask, "you good?"

"yeah, why wouldn't i be?" katsuki retorted, popping a hot cheeto into his mouth while he focused on the small tv screen. katsuki wanted nothing more than to have you under his arm at the moment.

denki chimed in, "well it's just that you haven't called anyone stupid yet."

"thought you guys would be happy i didn't insult you," he rolled his eyes.

"bakubro, you can tell us anything. we've all gone through a lot together-" kirishima was cut off.

"yeah i know, there's just nothing to tell."

katsuki noticed his friends glance at each other, unconvinced. he supposes he can't blame them; he is acting so strangely afterall.

"how do i say this-" kirishima (poor man) was cut off again-- this time by mina.

"do you like someone?" she snickered. out of all the things she could've asked, that was one of the last things he thought she would ask.

"what? no! i don't like anyone," he said defensively.

"then are you lonely? i can set you up with someone," mina pulled out her phone & started pulling up a picture of said someone, "let me show you her."

"no i'm not lonely either, raccoon eyes! it's none of your damn business!" he shouted, honestly sickened at the thought of being intimate & romantic with someone who wasn't you.

"are you sure~?" mina dragged the last word out in a sing-songy voice.

"yes."

"don't be mad-"

"what the fuck did you do?"

"i already invited her," mina chuckled, quickly stuffing her phone into her back pants pocket.

"WHAT?" katsuki shouted. what would you think? would you even care?

"listen, she's a really sweet girl, & i think that-" mina's defenses were cut short by the angry hot head.

"i don't care, tell her she's uninvited or something." it really wasn't that difficult.

mina stayed silent. katsuki already knew why. as if on cue, there was a knock on the door. "i was only kidding with you, ya big baby. i just invited another girl, no date required," mina joked. she muttered right after, "hopefully you two will hit it off so you're not so grumpy."

kirishima opened the door right as bakugou yelled, "what was that, you pinkie pie bitch?" the sakura-haired girl waved him off, popping to her feet to greet her guest.

she cheered, "y/n!" mina threw her hands up & stepped towards you for a hug. katsuki's head snapped towards the door, cheeks slightly pink because he knew that you heard his outburst.

"hi, mina" you softly said, accepting the hug. you wore loungewear; you wore a black crew neck with a rib cage vinyl design & shorts. "thanks for inviting me."

"of course! let me introduce you to everyone!" she ushered you inside the dorm room, & kirishima shut the door behind you. "that one," she points to the man who shut the door, "is kirishima." he smiled his classic, toothy grin. "that's sero, right next to him is denki," she said. they both -with mouths stuffed with snacks & hands occupied with controllers- said a brief "hi."

"& that one is-"

"i know her already." katsuki had a habit of cutting off his friends. was it polite? no, not in the slightest. did he care? no, he did not. "we're classmates."

"oh, um... i didn't know you were gonna be here," you admitted, cheeks flushed in shock.

"oi! you stalking me now, nerd?"

"no, not at all!" you quickly defended. you really didn't know he was going to be sitting in front of you, he knew that.

mina stepped in, "be nice to her, bakugou! i'm trying to make new friends, remember?"

"yeah, yeah, i remember you yappin' about it," bakugou responded as he laid back onto the dorm bed. he felt your eyes on him. just your mere attention got him riled up. he didn't know how to handle it. he felt as though he were burning up. his eyes shot towards your figure, eyes locking with your deep ones. "quit staring."

"i don't mean to stare-"

"get over yourself, bakubro," kirishima joked. he chucked a throw pillow mina insisted they get to "liven the sad, jail cell of a room."

that night, katsuki couldn't help but stare. hypocrite, he knows. but he just couldn't look away. you were a magnetic force, chipping away at his self-control. even with such modest clothing, he still found himself yearning for your body, your mind, your entire being as you already had his.

time flew by fast. he could tell you were slowly getting used to the dynamic his friend group shared. your shoulders slumped throughout the evening, & you sat without your hands in your lap. denki even got you to play a round of mario kart against mina. though you didn't like being in the spotlight, you thought it was fun seeing everyone's shocked faces after you beat the self-proclaimed queen of nintendo.

the night came to a close after kirishima, denki, & sero passed out on the floor while mina slept on the bed. you fought sleep, eyelids drooping with every passing second.

"tired?" katsuki questioned. he chuckled when you suddenly turned alert.

sheepishly, you confirmed, "yeah, just a bit. i think i'm gonna head back to my dorm."

"waking up your roommate isn't very nice of you," katsuki pointed out.

"my roommate dropped out, & they haven't assigned me a new one."

"is that so?"

you stuffed your keys into your left pocket & your phone in your right before replying, "yeah, lucky me. dorm room all to myself for the semester."

"what building?" dumb question, katsuki already knew what building you lived in.

"building b, floor three," you told him. you stood up & slipped on your slides. "i really should get going. weirdos start coming out at this time."

there was a silence that followed. in katsuki's head, the gears were grinding. never has he thought so much about a decision pertaining another person in his life. would it be too pushy if he walked you back? would he be shitty if he didn't?

"fuck it," he whispered. it was so quiet in the room that you heard him clearly. "let me walk you," he spoke with more clarity.

"you really don't have to!" you didn't know he was going to offer you such a thing. "i mean it, really. i have a mace keychain-" katsuki stood up & threw on a random hoodie that was on his chair as you rambled, tiredness getting to you, "-& i have my phone so i can call the police."

"just shut up & let's go."

the walk, at first, was awkward, to say the least. the night was still, no breeze to dance with the crusting leaves. there was no one in sight, nor were there cars that zoomed past the university.

"if i would've known you were gonna walk me, i would've left earlier," you broke the silence in a hushed voice.

maybe it was because he was still awake hours past his bedtime, but katsuki responded in a softer way than expected. "did you have fun?"

"yes i did," you told him with a small smile.

"then don't worry about it."

he was so sweet to you in that moment that you couldn't help but swoon. cheeks stained pink as you averted your eyes.

katsuki stared at you through his peripheral, catching how you began to mess with the hem of your shirt.

soon enough, the two of you reached the dorm building. katsuki stood there, about to turn around when you quickly whispered, "wanna walk me up?" you gulped. you didn't even know if you could consider him a friend, & now you're practically barking orders at him; what's wrong with-

"of course."

you both reached your room. once again, in that precious voice of yours, you suggested, "you can stay the night here, if you want."

when he remained quiet (due to shock & a growing boner), you back tracked, "w-well because the extra bed is still in here, & you did me a favor so now i owe you, &-"

"i have a confession," he said, "invite me inside."

"o-oh, yeah of course," you stuttered, unlocking the door & opening it for him. you shut the door & locked it. "what do you have to tell me?"

you quickly pulled out another blanket while he sat in a chair.

katsuki experienced some things throughout his life. he experienced fights & competitions & other stupid shenanigans. he's been questioned by cops & dealt with firefighters. however, he's never felt this nervous in front of anyone. his heart leapt into his throat & used his skull as a pounding speaker. he could barely hear his own thoughts. "i don't know how you'll react."

"i won't get mad," you promised, curious. "if that's what you're worried about." you expected that, since it's confession hour or something, he'd reveal things about his past.

"i think about you, y/n." that's not what you were expecting. "i think about you all the fuckin' time."

"w-wha?" what more could you say? from behind, you heard shuffling then warmth & a looming figure. you turned around & met his eyes, trying to find if he was messing with you.

"& i can't stop thinking about you. at first, you were so annoying. with your little outfits & perfume & shit. i found you everywhere i went. i started looking out for you, wondering if you'll show your annoying, pretty face," he confessed. katsuki didn't break eye contact as he sandwiched you between him & your bed.

"you're such a goody-two-shoes. such a fuckin' nerd. but you're the only girl who's ever caught my attention, you know that? why is that?" katsuki's fingertips began to trace your clothed legs then up & under your sweatshirt. he leaned down to your ear, "are you okay with this?"

all you could do is nod, afraid that if you were to speak, it would come out as a mere squeak. he pulled away, staring into your eyes once more with his glowing ruby ones.

"good. i still don't know why it's you. maybe it's cuz of how hard you work, or how disgustingly nice you are no matter what. you're such an angel, & that must make me a demon then," he told you. you felt your entire being light on fire-- cheeks hot, ears red, & you needed to get out of your clothes. "god, let me be the one to taint you, to ruin you."

the blonde pulled you in close to his chest by wrapping his muscular arms around your frame. your hand grazed on a bulge in his pants & he jolted. "you feel that? that's how hard you get me during class."

muffled, you let out, "b-bakugou." & with those big, innocent eyes, you looked up at him.

"it's katsuki, baby."

"katsuki," you corrected yourself before continuing, "you mean all of this, r-right?" you felt tears well up & your throat tightening when you began thinking it was all a joke.

his love-drunk expression shifted into an offended one. "you think i'm sayin' all this shit cuz i think it's funny?"

"i-i don't know."

rough yet lovingly, he grabbed your chin & leaned in, noses centimeters away from each other. "this is real to me, & it will be real to you."

your gaze darted to his eyes, furrowed brows, his moonlit hair, then his lips. the moment you looked at his lips, he smashed his lips against yours. the force of his kids caused you to prop your elbows against the bed all while he snuck his knee between your legs. he pressed his thick thigh against the aching warmth.

you let out a muffled moan, & he mistakenly took that as an invite to roam your mouth with his tongue. you pushed it back with yours but, like in every other aspect besides academic, he dominated you.

the two of you ran out of air eventually. he pulled away, eyes half-lidded. "let me get you out of those clothes." he almost sounded needy, if your ears didn't deceive you.

"please, katsuki." that's all you had to say. it was like a command to him, & he was your ever loving soldier. he helped you take of your sweatshirt. gawking at your chest, you didn't wear a bra.

he scoffed with a smug smile, "sneaky girl." he saw right through you. it's true, you didn't wear a bra because of a fantasy you didn't know you were going to fulfill tonight. easy access. you wanted to give him easy access. "i knew there had to be something about you, & i figured it out."

he fondled your tits while he whispered in the crook of your neck, "you're a filthy slut, huh?" you nodded, grinding against his thigh; he chuckled before he started to mark your sensitive neck with hickeys upon hickeys.

at this point, it was getting hard to keep quiet. you knew it was only going to get harder from there. you bit your pink lip as a form of self restraint as katsuki took off his shirt & slipped off your sweatpants. you wore a lacy thong.

katsuki muttered, "oh fuck." he so badly needed you. his fingers rubbed your arousal through the fabric. he loved knowing that he made you so wet. his other hand pushed his boxers & pants down in one swift motion. katsuki needed to feel you around his poor, throbbing cock.

you might've had self restraint, but your lover didn't. he ripped the panties off of you & threw them somewhere in the dark room, not that he cared. if you were upset about it, he'll just buy you another pair he'd tear off. "fuck, y/n. i need you to tell me you want this- no you need this, need me."

you stroked his forearm with your fingers. this was so out of your comfort zone but you still managed to spit out, "i-i need you, katsu-"

there goes that habit of cutting you off again. he shoved his tip into, causing you squeal. he let you stretch, then stuck in more of his cock until you were finally well-adjusted to him. you felt the weight of cock inside you as your walls tightened around him.

you couldn't help but moan as a way of begging him to move. he demanded, "use your words, angel."

"katsuki~" you whined. his calloused hand clasped around your marked neck.

"tell me what you want, & you get to breath."

"y-you! i want you to fu-fuck me!" you choked out, eyes rolling to the back of you head as you desperately tried to breath. he let go, satisfied that you were slowly coming undone.

"such a quick learner," he praised, "i love hearing that voice of yours." you clenched around his hung prick.

he started to move, shallow humps turned into powerful, bed-rocking thrusts. he through your feet onto his shoulders while your wrists were held down to your sides with his hands. your brain turned into bimbo mush, babbling about how he needs to go harder, to keep going. katsuki happily obliged-- anything for his favorite girl.

every thrust your tits jiggled & your ass slapped against his hips. god, how was your body this divine? "such a good whore, handling my cock so good."

"k-katsuki, wanna cum- i'm cumming, i'm cumming!" you told him, scrunching your bed sheets under your grip. your mouth widened. with lightning speed, katsuki shoved something in your mouth; it was your ripped thong. the one you thought was lost in the room.

"fuck yeah," he moaned while he played with your clit. "cum all over my cock, i'm all yours." katsuki was so mean, yet so romantic. he ruined you so effortlessly & still managed to make you feel like you were a goddess amongst men.

you came. that wasn't the last time that night. he pulled out & flipped you over. "ass up, we're not done."

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