sum. sukuna teaches you how to kiss
⊱ ۫ ׅ ✧ cw. college au, detailed descriptions of kissing/making out, reader is relatively inexperienced, reader has glasses, talks of sex, maybe nerdy!reader but that feels kinda rude bc i really just think she's neurodivergent lol
Can you imagine your luck when the teacher announced who your lab partner would be?
Like cold water thrown over you when you heard the name Sukuna paired with your own.
Bruised knuckles, callous attitude, tattoos…you already began preparing to do the entire thing yourself.
Guys like him had no interest in girls like you — this wasn't self-deprecation because it was true vice versa.
Some types of people just…don't mix. Like oil and water.
You're more on the reserved side; if you talk you either don't talk enough or you talk too much. Parties are great till they get overstimulating, tolerating guys you can't stand only goes as far as your energy to keep pretending.
Maybe you've always been a bit more in your head, a bit more melancholic than your friends and roommate — and it doesn't help that you feel like the only girl in college who has absolutely no love life.
Not that you're quite sure you even want one.
"Alright, you can take a few minutes to find your partner and start discussing your project now," the professor says, leaving the class to chatter amongst themselves.
You'll just have to square your shoulders and stay cool and firm — because you already get the idea he's the type that wants to make you feel inferior on purpose.
So you don't even bother looking up to find him — no, you stay planted right in your seat trying to figure out what this project entails.
Until a large figure drops his bag right next to yours.
You blink up, slightly startled to find him sprawling into the seat beside you — frankly you hadn't even expected him to know your name.
Or if he did, then for him to pretend like he didn't.
"Uh, hi…" you start off, already nervous with the way he's staring at you. You've never quite gotten used to eye contact — your eyes are already darting off to the side by habit just to escape his.
"Uh, hello," he greets you back — though you get the feel he might just be mocking you.
You're already fiddling with your sleeve in one hand, twisting and untwisting it around your finger.
"…So, uh, I think I can do most of this. Maybe I'll just let you know when I'm finished so you only need to do a final revision?"
He stares. "Seriously? You're just willing to do all the work for a partnered project?"
Thrown off, your mouth opens too fast and you blurt out, "Well I didn't think you'd do anything and I highly doubt the professor would let me switch partners….and I don't want to fail this class considering it like…costs money."
Shit, you've said too much.
You try and rectify any damage with a small, polite smile.
He hums, openly smirking at you now. "So you assumed?"
Lips parting and closing, you finally admit, "Uh, yeah…I guess?"
"Let me guess — you also think I'm so himbo moron?" he presses, but his tone isn't mad — it's loaded with amusement, which almost feels worse.
You don't answer and that says enough.
"Well, since it seems like you want to do this project alone—" he sighs, grabbing his bag to rise.
"I'm sorry for just assuming, that wasn't…right of me."
"Yeah, it wasn't," he drawls, stretching.
Then without further hesitation he decides, "I'm not working in the library. Lets study at your dorm."
"What's wrong with the library?"
"They don't let me eat in there."
"And you think I'm going to let you eat in my dorm?"
He flashes you a sideways smirk, apparently entertained by what he assumes is you talking back.
Which isn't true of course — you're being completely genuine, wondering about his thought process.
"Considering you were willing to let me freeload for an entire project…yeah, I do think you'd let me eat in your room."
That finally makes you scowl. "Why can't we do it at your dorm?"
"Oh, you want to come over?"
Except the way he says it is more than suggestive — and immediately you swallow. "Uh, no, my dorm's good."
When he gets to your dorm, the first thing Sukuna does is spend a good fifteen minutes looking at all the small stuff crowding your desk.
"I told you not to comment on it," you grumble under your breath.
Bones, small potted plants, trinkets and a variety of odd things you found — all have a space on your desk.
He probably thinks you're a dork.
"Are you embarrassed?" he chuckles, picking up a jar with a colorful specimen floating inside — shaped like a mouse but in shades of magenta and cerulean.
"Diaphanized specimen? Damn, how much did this thing cost?" he asks, turning it around.
He finally turns when he's met with silence — because frankly you didn't expect him to actually know what that was.
Another swallow and you awkwardly shrug, gaze darting around the floor.
"So?" he asks again, "How much you buy it for?"
"I, uh,…I did it myself."
He hums, setting the jar down. "That'd be pretty impressive if you weren't so embarrassed about it."
"I'm not embarrassed!" you huff.
He cocks a brow. "Really?"
"I just…it's probably kind of weird to most people," you add with a nervous laugh.
He laughs, but his is nothing like yours. "At this point it seems like you want me to bully you like some stupid 90's highschool movie."
Immediately, your ears burn up. "What? Shut up."
"I mean I'll do it for you if you want it so much — yeah, go ahead and push your glasses up again you dork."
Maybe he's being a dickhead, but unfortunately you can't hold in the impish little giggle that escapes your lips.
"Oh see? You do like it."
You try to shoot him a serious look. "Don't be weird."
"Bet it'd turn you on if I called you a dumb little nerd."
Unfortunately you never figured out how to believably mask your emotions — immediately you forget your words, clearing your throat in a flimsy attempt to seem composed.
He catches it, grinning wide. "What a little freak."
You don't know how it gets there but a week later when you're sitting in your dorm, the topic of sex comes up — and Sukuna notices how oddly quiet you get.
"You're a virgin, aren't you?"
"Wha— no….maybe, kind of?"
You hardly even realize you're pushing up your glasses as you open your mouth to word-vomit. "Well once I was about to do it with a guy but he was also a virgin and I was a virgin and he couldn't get it in past his tip so he just jerked himself off and came inside me like that."
Surprisingly enough, Sukuna always lets you speak when you ramble on like this — not that he'd even have an opening to cut you off anyways.
He watches you for a moment, gaze unreadable before he comments, "Wow. You're the first virgin to have been creampied."
"Not a compliment, dork."
"Well you could've let me think it was," you mutter, eyes drifting to the papers in front of you.
"You have a lot of attitude for a nerd."
Ironically, you brought this fate upon yourself — ever since that first time in your dorm, the nicknames stuck. Like you'd personally handed the joke a life.
"Right… you ever done anything else except…whatever that was?"
You blink, clearing your throat. "I've…sucked dick."
"…And then I gagged when he nutted in my mouth because the texture was so…slimey… But I managed to get it down anyways," you add, with a small self-satisfied smile. "Though I also suspect his cum gave me indigestion so I didn't do it again."
"Thank you for all that lovely information, but not what I meant — like, at all."
Your ears burn, arms automatically crossing over your body.
"Well I don't know, okay? I basically have no experience in that department so there isn't much else to say," you snap.
He laughs under his breath. "Relax. No need to get defensive. Wasn't gonna attack you for it."
"…I was actually thinking how I could be your first.
In shock, you snap your face towards him. "What—?!"
You've seen that look on men before but never towards you.
Sukuna leans closer — you lean back. "We don't need to make it weird," he murmurs.
"Not w-weird?! I don't I've ever gotten fully naked with anyone before except with that one guy but the lights were off so I feel like that doesn't really count—"
Fingertips brush over your thigh, a deliberate touch that makes your breath hitch. "I'll make it good for you…don't you wanna know what it feels like?"
A pause before you give a small, sheepish nod.
He answers it with a grin that you think is meant to be reassuring, but sort of just does the opposite. "We can start small."
"Small," you repeat, eyes wide.
You shake your head just a little, with an apologetic smile.
He peers down at you, with a lazy smirk, red eyes dark as he studies you like some small animal.
"That's okay, just stay still…let me guide you first, okay?"
Gulping thickly, you nod — your heart practically feels like its trying to break out of the cavity in your chest.
Your glasses are abruptly snatched from your face.
You blink as he folds them and sets them aside. "Don't need them in the way. Besides, I wanna be able to see those pretty eyes."
Admittedly you feel a little…vulnerable without some frames to hide behind if needed, maybe even act as some kind of barrier to shield you.
Sukuna notices as your eyes instinctively dart to anywhere besides his face.
"Mm. We'll have to work on that."
"You avoiding eye contact like you'll get turned to stone or some shit if you do."
Before you get a chance to offer your opinion, one of his hands is cradling your cheek as he leans in.
Your eyes automatically flutter shut, lips parting slightly.
Then you feel his mouth on yours — lips warm, as they take your bottom lip in.
Its only a touch of cool saliva at first, until something soft and wet runs across your mouth.
His tongue. Just the tip.
It's odd and new and you can't decide if you like it or not before he's already pulling away.
Blinking, you peek up at him, at his lips twitching a bit at the corner.
"Don't be so…tense. I'm kissing a living girl, not a corpse."
You murmur an apology — making him laugh softly. "Just relax. I'm showing you what to do."
Taking a slow breath, you nod again.
He leans in and its the same as last time — but this time a bit more insistent in his movement.
You try to focus on how his lips are taking in yours and how they move but it's so incredibly difficult with all these sensations.
You know lips are sensitive — packed with so many nerve endings that they register sensation a hundred times sharper than your fingertips. But sometimes knowledge only truly settles into the body in a moment like this.
Because since the second his mouth brushed yours, shivers run down your spine so clean and electric you almost gasp — it's almost overwhelming.
And it tips further towards that point when his tongue actually slips between your lips — by reflex you tense your jaw, denying the thing wet and writhing in your mouth like a live creature.
But the grip on your hip tightens and he pushes his way through anyways.
The slick appendage caressing yours, exploring places that for over two decades only your own tongue has ever known.
And then it slides back out, leaving you a bit breathless.
"Um…invasive," you answer honestly, feeling out of your depths.
He doesn't take it any type of way, just smirks. "Does feel kinda weird at first…you'll get used to it."
Snorting softly, he pushes you on your back a bit closer to him — and automatically you squirm, an instinctive habit that says you should keep some distance between you and another person that you aren't so familiar with.
"God, touching you is like trying to pick up a cat that doesn't want to be picked up — just clinging to the carpet."
A bit chagrinned, you ramble out an explanation, "I just…it feels like I'm invading your personal space? Like I know that sounds weird considering what we're doing, but…you know…"
A whole lot of words to say absolutely nothing coherent.
"Just relax on me," he tells you, pushing you with enough force that soon you're pressed against his chest, laying completely on his body. "See? There you go."
Subdued into place, you pliantly lay there as his hand roams to squeeze one of your ass cheeks. You exhale sharply, but you don't move away or even flinch.
"You're okay with me touching your ass but laying on me is what gets you uncomfortable?"
"I don't know," you try to defend yourself, "It just feels…"
Sex by itself isn't so scary — it's the intimacy that makes you squirm more than anything.
His palm presses into the small of your back, keeping you pinned in place. "Stay. How are you gonna have sex if you can't even handle this much?"
Your brows pinch, huffing faintly. "Is this all we're doing?"
"No…now you're going to kiss me."
About to protest, you stop yourself as you catch his expectant gaze. "I'll…try…."
On the spot and nervous, you grab his face with one hand and press your lips to his before you can overthink it.
He doesn't help you out or guide you at all — just stays perfectly still like you did, and lets you figure it out on your own.
First, you lightly try catching his bottom lip…then the top.
Maybe you should go….deeper?
You stick your tongue between his lips, met by sharp teeth and wetness. He makes some low kind of noise, shifting a little under you, but he doesn't stop you as you explore his mouth.
The kind of sensation that you instinctively cringe away from.
But when you force yourself to hold it a bit longer, you find that you start to crave more of it—that it turns you on.
Whimpering softly, you climb a bit higher on him, tongue tracing the smooth surface of his palate to see how far you can get.
Then acutely realizing you also have teeth and that there's something between, you nip without thinking just to feel the soft flesh.
That's when he finally pulls away with a light gasp, eyes slightly hazy before he grins lopsided. "Tryna kiss me or tongue-fuck my mouth?"
That makes you burn up — and as usual when you get nervous, you truthfully blurt out, "I'm just doing it like how I'd wanna be kissed."
He blinks before his gaze darkens, smirking a little sharper. "You want that? After you called the last one — what was it — oh yes, invasive—"
"…Didn't say I didn't like it, though," you say quietly, peeking up at him through your lashes.
"Alright, if that's what you want," he murmurs.
You can barely get a breath in before he grabs your chin and his lips are crashing against yours.
This time he's not gentle or deliberate — his tongues pries your lips open, roughly forcing its way into your mouth as if it belongs there.
So harsh, you can't feel anything but that muscle in your mouth, reaching deeper and deeper to the point you find it hard to breathe.
You don't stop him though, letting his fingers knot in your hair and tug — at this point he's practically just swallowing your mouth whole, and you give in, shyly sucking on his tongue.
That makes him groan low in his throat, this travesty of a kiss devolving into something much more ravenous and sloppy.
Saliva drips down from the corners of your mouth and you whine around his tongue, lips swelling from his bites.
Then he lets go and air floods your lungs as you catch your breath, head spinning.
"That what you wanted?" he asks with a smirk, voice low and a bit rough, his lips shining with saliva like yours must be too.
In a dazed state you nod, acutely aware of the slick collecting in your panties.
"You little freak…want me to do that to your pussy, too?"
You blink, blanking out. "You mean…like eat me out?"
Pulse quickening, your eyes widen. "Uh, right now?!"
"Uh, yes?" he mocks back.
Panicking, you stumble around your words. "Uh, I don't….we'll do it next time," you decide.
His eyes narrow slightly like he wants to say something, but he doesn't push it.
And suddenly you remember something — something you'd never paid much attention to before because it didn't really concern you.
Sukuna stares at you like you've spoken a dead language. "Tested."
You nod eagerly. "Yes and bring proof of your test results… I'll bring mine too."
"Woman, I think you need to get tested — and not for STD's or STI's."
Then taking a look at your face, he finally caves with a sigh. "Okay, okay fine. Stop staring at me like I kicked your dog."
Your brows furrow slightly. "…I don't have a dog?"
"It's a— Whatever, just forget it. I'll bring my damn test results," he grins, still absentmindedly squeezing your ass, "If it means you'll let me eat you out."
With a tight smile you nod. "Right…next time."
⊱ ۫ ׅ ✧ an. okay back to my assignments i go...