RUIN THE FRIENDSHIP — L.SW
synopsis: lee sangwon is your best friend, nothing more & nothing less. for sure.
› pairings & contents: bestfriend!sangwon x fem!reader
✧ warning: smut, foreplay, themes of long-term romantic pining, explicit dirty talk, praise, and some profanity. this is a work of fiction.
the thing about lee sangwon is that he’s always just… there. since the first day of university orientation when you both got hopelessly lost looking for the same lecture hall. he’s been your constant.
he's the one who brings you coffee when you’re pulling an all-nighter at the library, the one who laughs at your dumbest jokes, the one whose shoulder you cry on after bad dates. he’s your best friend. your safe place.
and it’s slowly, quietly, been killing you.
fuck, were you in love with your best friend?
it’s a friday night. you’re at his apartment, a cramped but cozy studio that always smells like his laundry detergent and the minty gum he chews. a half-finished pizza sits on the coffee table. some random episode of "running man" is playing on his tv, but neither of you are really watching.
you’re on the floor, leaning against the couch, and he’s sprawled next to you, his long legs tangled with yours slightly. he’s telling a story about his part-time job at this one cafe down the block, hands moving animatedly, and you’re just… staring.
at the way his lips move.
at the strip of skin showing where his t-shirt has ridden up.
"hey,* he says, his voice cutting through your haze. "are you even listening? you're so quiet, dude."
"fine,"you say, too quickly. you take a sip of your beer. it’s warm. he nudges your foot with his. "liar. talk to me."
the words are out before you can cage them. "i think i’m in love with you, is that weird?"
the room goes silent. the only sound is the faint laughs from the tv. his smile freezes, then melts away. his eyes, usually so bright and playful, turn serious, searching your face. "suddenly?"
you want to die. you want to rewind the last ten seconds. "nothing, actually. forget i said anything. it’s the beer, i—"
"say it again." his voice is low. he’s sitting up now, turned fully toward you. you can’t look at him.
you stare at a spot on the carpet. "i’m in love with you, i think, sangwon. i have been for… i don’t even know how long. and i know it ruins everything. i’m sorry."
a beat of silence. then his fingers are under your chin, tilting your face up. his expression is unreadable. "you idiot," he whispers.
you're not sure how it happens, or if you made it up completely but you're sure you felt his lips on yours.
and then he’s kissing you.
you would've imagined kissing sangwon to be soft, very gentle but boy, were you wrong. lips, teeth, the desperate sound he makes in the back of his throat. his hands come up to cradle your face, his thumbs stroking your cheeks. you gasp into his mouth, and he deepens the kiss, his tongue sweeping in, tasting of beer and salt and sangwon.
when he finally pulls back, you’re both breathing hard. his forehead rests against yours. "you have no idea," he murmurs, his voice wrecked. "no idea how long i’ve waited to hear you say that."
"you… you too?"
he laughs, a shaky, relieved sound. "yeah. me too." he kisses you again, softer this time, a promise. then his gaze darkens. "tell me you want this,"
"i want you. i want this. more than anything."
that’s all it takes. he moves with a sudden, sweet urgency. he stands, pulling you up with him, and walks you backwards toward his bed, never breaking the kiss. the backs of your knees hit the mattress, and you tumble down, him following, his body covering yours. it’s familiar and brand new all at once— the weight of him, the scent of his skin, but now with a heat, an intent, that’s never been there before.
his hands are everywhere, mapping you through your clothes like he’s memorizing you. he pulls your shirt over your head, his eyes drinking in the sight of you in your bra. "so beautiful," he breathes, before dipping his head to kiss the swell of your breast, his tongue tracing the lace edge. you arch into him, fingers tangling in his soft hair.
you get his shirt off, and then you’re skin to skin, and it’s overwhelming. he’s all lean muscle and warm skin, and you can feel his heart hammering against your chest. "sangwon—,"you gasp as his mouth finds your nipple through the fabric, sucking hard.
"say my name again," he rasps, popping the clasp of your bra with practiced ease. "i love how you say my name."
you do, over and over, as his mouth and hands worship your breasts, pinching and licking and sucking until you’re writhing. his jeans are still on, the rough denim rubbing against your inner thighs, and you can feel the hard length of him straining against the zipper. you reach down, palming him through the fabric, and he groans, his hips bucking.
"fuck, please," he pants against your skin. you make quick work of his button and fly, pushing his jeans and boxers down just enough to free him. he’s thick and heavy in your hand, velvety hot. you stroke him slowly, watching his face contort in pleasure.
*not fair," he grits out, and his fingers hook into the waistband of your pants and panties, dragging them down your legs in one swift motion. then he’s there, kneeling between your thighs, just looking at you, his eyes blazing with awe and hunger. "mine," he says, simple and possessive.
he doesn’t make you wait. he leans down, his tongue licking a slow, torturous stripe up your center. you cry out, back bowing off the bed. "sangwon!"
"tastes like heaven," he murmurs, before diving in. he eats you out like he’s been starving for you—which, you realize, he has. his tongue is relentless, flicking your clit, plunging inside you, then circling again. his fingers join, two sliding deep, curling just right. it’s too much, it’s not enough, you’re babbling his name, pleading, tugging his hair.
"come for me, baby," he says, his voice vibrating against you. "let me feel it."
you shatter, a raw scream tearing from your throat as waves of pleasure crash through you. he rides you through it, gentle now, lapping up every drop until you’re whimpering from oversensitivity.
before you can even come down, he’s moving up your body, kissing your stomach, your ribs, your breasts, your neck. he’s trembling. "need to be inside you. now. please."
you nod frantically, spreading your legs wider. he reaches for his wallet on the nightstand, fumbling for a condom. you take it from him, ripping the packet with your teeth, and roll it onto him, your touch making him shudder. he guides himself to your entrance, the head nudging against your slick heat.
he looks into your eyes, his own full of so much emotion it steals your breath. "i love you, what the fuck" he says, chuckling at himself.
then he pushes in.
it’s a stretch, a burn, a perfect, breathtaking fullness. you both moan in unison. he stills, buried to the hilt, his face buried in your neck. "this okay?" he breathes.
"more than okay. move. please, wonie, move."
he does. he starts slow, deep, rolling thrusts that make you see stars. it’s not just sex. it’s a conversation. every gasp, every kiss, every shift of his hips is a word you’ve been waiting years to say. his hands are everywhere,, gripping your hips, tangling with your fingers, stroking your hair. he whispers against your skin. "so good, fuck— you feel so good, baby"
the pace builds, becoming more urgent, more frantic. the bed frame knocks against the wall in a steady rhythm. you wrap your legs around his waist, pulling him deeper, meeting him thrust for thrust. the coil inside you tightens again, impossibly fast.
"i’m close," you sob. "o close."
"look at me, baby," he commands. you open your eyes. his are dark, desperate, full of love. "come with me."
he slams into you one last time, hitting a spot that unravels you completely. your climax rips through you, silent at first, then a broken cry. the feeling of you clenching around him drags him under. he shouts your name, his body going rigid as he spills into the condom, his thrusts turning shallow and jerky.
he collapses on top of you, a sweaty, panting weight. you hold him, your hands stroking his damp back, your legs still wrapped around him. you never want to let go.
after a long while, he rolls off, disposing of the condom before gathering you back into his arms, pulling the covers over you both. you’re curled into his side, your head on his chest, listening to his heartbeat slow.
he kisses the top of your head. "sooooo." he says, his voice drags. "best friends who fuck?"
you laugh, shorting him a look, "i'll kill you,"
"i'm kidding, pretty." he holds you tighter. “don’t expect me to ever let you go now.”
"wouldn’t dream of it."
💌 viv's note: my advice is always ruin the friendship 🧚♀️
