pairing – hot nerd!seungmin x neighbour!reader
genre – 100% smut with a kind of fluffy ending. almost masturbation, lowkey voyeurism, facefucking, role reversal, d/s dyanmics, pussy spanking, petnames, ruined orgasm, degradation, dirty talk, actual sex.
notes – oh my god i really wrote 2.9k word smut on seungmin… i made it !! honestly, i’m probably going to avoid writing proper oneshots for a while after this :”) this is also the filthiest thing i’ve ever written and i don’t think anything’s gonna top it for a while so there’s that !! it’s 1:30 am here so i don’t really have much else to say – thank you for reading in advance ^^
———————————————————————————
“Wha- here?! Now?” you sputter, blinking hard. Surely you must have heard wrong.
“Yeah, why not?” Seungmin’s answer is punctuated by a shrug. “It’s not like they can hear anything from downstairs. Plus they’re all drinking and it’s gonna take forever for them to finish talking.”
Your head is spinning. You’d been expecting anger, embarrassment, for him to demand an apology for what you did. This was not on the list of possible ways the conversation could have gone. But you can’t deny that the idea of seeing your neighbour, spread out in your room with his cock in hand as his fucked out gaze meets yours has heat polling in your panties already.
Biting your lip, you chance another glance at Seungmin. His face is the picture of nonchalance as he takes a seat at your desk chair, spinning it around to face you. You take note of how he sits, slightly slouched and legs spread wide. Feet planted. Inviting.
“You don’t have to say yes, you know. It was just a suggestion because I thought you liked it, but if you didn’t that’s-“
“No, I want to!” you blurt out your answer before you can chicken out. Feeling the blood rushing to you face, you groan internally. You probably look like a scared virgin.
You can’t tear your eyes away as Seungmin gets comfortable, shifting in the seat and undoing the button in his jeans. He’s already half-hard, pushing uncomfortably against the cotton of his grey underwear in a way that shows the outline of exactly what he’s packing. It’s stupidly hot, the way he rubs against his covered dick and strokes it to full hardness, seeing it stiffen even further right in front of you, before he slides the elastic down and pulls it out.
His glasses are fogging up a little already, and the way his hands shake ever so slightly has you realizing that he’s not so casual about this after all. The rush of power you feel at knowing you make him nervous has you almost moaning out loud.
“Baby, how about you let me make you feel good?”
Seungmin startles at how your words drip with want. You advance towards him, getting close enough to place a hand on the back of his chair. Your face is close enough to his for your noses to touch. You bring a hand up to his face, caressing the side with a finger before plucking his glasses off. His eyes fix on you lips, mesmerized at the way your tongue darts out to wet them before you lean in.
“Let me suck you off, angel. I want you taste you.”
You delight in the way Seungmin stiffens and face flushes as a soft groan escapes him. His hands fall to wrap themselves around the edge of the chair seat, opening himself up to you. He looks so needy sitting there, waiting for you to make a move.
Slowly, you slide your hand down his shoulders and across his chest, pleasantly surprised by how firm he is under your touch. Brushing over his abs, you hover tantalizingly over just where his happy trail starts. Seungmin lets out the softest of whines, muscles flexing under your hand. The sound is addicting.
You drop to your knees and replace your hand with your mouth. Pleasure rises in your stomach as you leave pretty marks to decorate his pale skin – you know no one else will see the hickeys, but he will. And he’ll remember who gave them to him, and how good it felt. After the expanse of his abdomen is littered in darkening marks and Seungmin is moaning in desperation – maybe a little too loudly – you decide you’ve tortured the poor boy enough.
When you take in the head of his cock completely, Seungmin goes silent. You glance up to check on him, member still in your mouth, and marvel at the sight presented to you. Every line of his body is rigid, looking like he’s been carved from marble. The tendons in his neck pop with the strength he’s suppressing his noises with his cock, heavy on your tongue, throbs in sync with a vein in his temple as you push more of him into your mouth.
If you’re honest, he’s not the bigger you’ve had. But he’s thick. Thick enough that your jaw is beginning to ache already, despite having barely started blowing him. His hands fly to tangle in your hair as you take him in deeper, swirling your tongue around his cock as best you can. When you try to swallow around him you choke a little, the tightening of your throat making him buck up into you instinctively. The following moan and gag has him pushing in even deeper until your nose brushes against his skin.
Your own hands go up to hold his in warning, buying you some time to adjust to the feeling of his cock down your throat. You can feel his thighs tense underneath you, desperate to move, but you force him to wait until you’re ready. Then you swallow around his member and he’s fucking back into your mouth with a needy groan. As much as you love how he’s thrusting down your throat, it won’t do to let him control the pace at all. After all, you wanted to make him fall apart, not the other way around.
Digging your nails into the muscle of his thighs, you pull off completely. Seungmin’s protest breaks off into a pitiful whine as you blow a cool stream of air onto his spit-slicked cock, watching it twitch at the light stimulation. Instead of taking him back in all the way, you lave soft kitten licks from the base to the tip repeatedly. It’s torture for him, but you want him to break.
“Ah, please, (y/n). I need more, please, give me more.”
Seungmin begs with a voice that can only be described as ruined. Interrupted by moans and groans, it breaks twice as he pleads with you for more stimulation. Looking up at him through your eyelashes you can see how red he is, eyes watering and rolling back into his head. He looks like he’s going to cry any minute. It’s adorable.
And you aren’t feeling too mean tonight, so you sink back down on his cock with ease this time, taking him all the way.
Seungmin takes one look at your lips stretched around him and the tears in the corner of your eyes from choking on his cock, and he’s pulling you off with a stuttered warning to come on your face.
Seungmin’s fucked out eyes look down at you, still on your knees. You look absolutely wrecked. There are tears in your eyes and his release spattered on your face. Your hair is in disarray from his hands threading through them and your spit-slicked lips are enough to have his cock stirring again, despite having come literally a minute ago. It’s a strange interlude – you sucked off your hot nerd neighbour, in your room, with the parents downstairs.
The words swelling between the two of you disappear immediately as you hear your mum calling from downstairs. You frantically try to tame your hair back into place and clean your face with a make-up remover wipe as Seungmin scrambles to do up his pants in record time before the parents come up to see what was taking so long.
On the way down the stairs Seungmin’s legs buckles and almost give out from under him. You aren’t much better; the pins and needles from being on your knees for too long make it impossible to walk normally. It doesn’t help that your uncomfortably wet panties stick to your core enough to chafe just a little. The tiny stimulation makes the thought of missing out on sitting on your neighbour’s dick that much worse.
“Uh, (y/n). I’ll see you tomorrow at 4 to talk about that English project?”
You manage to nod. You know your throat is too ruined to give a verbal answer without raising questions.
“Great!” his puppy smile is back, and you’re struck by how pretty Seungmin is all over again. “I’ll see you then.”
“Do you know the colour system?” Seungmin looks down at you under him, already in nothing but his boxers. His lips are swollen and shine with spit from making out. You’re sure you look just as rumpled, naked and hair wild, on your back on your hot neighbour’s bed, with his marks blooming on your neck. A frown wrinkles your brow at the unexpected question, but you nod in response.
“Green for go, yellow for slow down, and red for stop. I need to you promise me you’ll use it if you have to. I’ve been told I can get a bit… rough.”
An involuntary moan escapes you at his casual admission.
“Sure. Try me, sweetheart.” Something in his eyes harden at your challenge.
Suddenly, you feel tiny under his toned body as he looks down at you in cool indifference. They way he looks at you is enough to have your blood running hot under you skin. You feel the wetness gathering between your thighs and can’t help but wonder if you’re actually able to take what you dared to say.
This Seungmin above you is not the boy you sucked off. That boy was sweet and careful, letting you take the lead and tease. This Seungmin is all dominance and power. The set of his jaw and the furrow in his brow makes you want to submit without question.
“I let you have your fun last time because you were practically gagging for it, but now that I think about it again, I don’t think you deserved that freedom at all. I think you need to be punished, sweetheart.”
Where did this confidence come from? While you’re still disoriented by the whiplash from Seungmin’s change of character from last night, you find he’s already made his way down your body to slot himself between your thighs. He pulls them up and spreads them with ease, exposing your pussy to him completely. When he sees how wet you are despite how little he’s touched you, a smug smirk pops onto his face.
“Keep your legs up, angel.”
And that’s the only warning you get before his hand draws back and comes down with a loud smack. A yelp is torn from you as your outer lips smart from the slap, but you aren’t given any chance to recover as three more blows rain down in quick succession, landing directly on your clit. The sudden, sharp stimulation renders you dumb, and you’re unable to make a single sound until he finishes.
Seungmin strokes up and down your inner thighs gently, as you dry sob with your face pressed into the pillow You’re throbbing like crazy, and it hurts like fuck - he really didn’t hold back. But the pain feels so fucking good, you can’t even think straight. You don’t think you’ve ever been wetter in your entire life.
“Colour, (y/n)? How’re you feeling?” Seungmin drops his dominant persona for a second, waiting for your response. He brushes the hair out of your face and cups your face in his hand, tenderly rubbing his thumb against your cheek in reassurance. Taking a moment to collect your breath, you have to swallow hard a couple of times to get your voice back.
“Green, so green, you don’t even know.”
And with that, his hard shell is back. His grip on your face tightens before he’s jerking your chin up to meet his darkening eyes. There’s no longer any trace of mercy in them, just desire and promises of ruin.
“Aw, c’mon, sweetheart. You know you deserve this, be good and listen and maybe I’ll stop at ten.”
A hard flick to your hole has your thighs spasming and almost dropping before you manage to hoist them back up to present yourself to Seungmin again. Under in his unimpressed gaze you take the initiative to hook your arms under your knees and put your legs apart even further, completely exposing your swollen red pussy to him. The smug smirk spreads across his face again as he takes in just how wet you are.
“You’re literally soaking from me slapping your slutty little cunt. All I have to do is this“ – you squeal as he lands another slap, this time aiming directly for your exposed hole – “and you’re squealing like a bitch in heat. Didn’t know you liked to be treated like a whore, baby.”
Seungmin follows up his demeaning words with a hard pinch to your tender clit.
Hit with both degradation and pain at once, you’re pushed over the edge. The orgasm you’ve been waiting for hits sharp and fast. When you come to, Seungmin has his pretty fingers in his mouth, licking up your release in a way that’s borderline pornographic. His fingers dips back into your quivering slit to collect more, and when he brings his fingers to your mouth instead you open like a good girl, tasting yourself as you swirl your tongue around his digits.
“God, you’re such a dream.”
Desperation shines through in how fast he moves to stretch you open. Two digits sink into your heat almost too soon as you’re coming down from you high, and the sudden overstimulation is almost too much to bear. Your hand flies down to stop his movements and you feel his wrist flex under your hold before you can stop yourself.
A sharp pinch to your nipple tears a yelp from your throat and another gush of slick from your cunt.
“You really are a pain slut, look at how wet you got just from that. Be good or I will leave you hanging. Now move your hand and let me stretch your tight little pussy out for my cock.”
Once your hands are fisting themselves in the sheet instead Seungmin is quick to add a third finger, eliciting a gasp from you before he hooks his fingers up to rub hard into a spot that has you seizing up around him. Through the tears in your eyes you can see his look of concentration blossom into a wicked smirk before his fingers still in you, just grazing the spot but not enough contact to really give you any relief.
The sudden loss of movement disorients you, and in a haze you cant your hips up and move in a frantic search for more pleasure. Seungmin watches you in fascination as you fuck yourself down onto his motionless hand. The moans dropping from your mouth get progressively louder and more lewd as you chase your high. You feel the knot in your stomach tighten further and further, about to snap-
“Fuck, no, I was almost there!”
Before you can even come to terms with the way your orgasm was cruelly ripped away from you, the feeling of your hot neighbour entering you has every thought fleeing from your mind. Seungmin attaches his lips to the sensitive spot behind your ear and sucks, giving you time to adjust to his size. Impatient, you clench around him and he spits out a hiss, drawing himself back up onto his hands over you before almost pulling completely out of you, only to thrust back in, hard.
You’re certain sex has never felt this good before. Seungmin’s pace is absolutely brutal, slamming into you with no reserve. His hipbones drive into yours with enough force you know you’re going to bruise. The drag of his cock against your walls has your eyes practically rolling back in pure ecstasy. You’re glad to note that from the way Seungmin is moaning into your ear, you can tell he’s feeling the same.
Still sensitive from your first high, you find yourself nearing the edge at a much faster pace.
“I can’t- hah- I can’t, I’m gonna cu-“,
A thumb rubs hard against your clit and a searing kiss cuts off your warning, and that’s enough for you to cum, spasming around your neighbour’s dick. Seungmin continues to fuck into your heat, driving you through your orgasm.
Overcome by ecstacy, you vaguely register his hot release spraying over your stomach as he comes, swearing under his breath.
“Well, that was an experience”, you manage to croak out, voice hoarse from screaming in pleasure. Seungmin chuckles as he reaches for the tissue box on the stand next to his bed. The room is filled with soft panting as he gently cleans you off.
“Yeah, it was. Was I too rough? Are you gonna be able to walk tomorrow?”
You take a moment to take in how your body is feeling. Now that the pleasure is ebbing away, you realize you ache and throb all over. Seungmin really had done a number on you.
“Nope.” You really don’t think you’re going to be able to move properly at all, let alone walk.
“Guess I’ll just have to look after you all day, then.”
Looking up in surprise at Seungmin’s declaration, you’re greeted by his beautiful smile beaming down at you. You can’t help but grin up at him in response, shifting to press a quick kiss to his cheek.
“Guess you will,” you agree, giggling as you watch his eyes widen and cheeks flush at your action.
