“wonbin’s advances”
word count: 4.7k+ | genre: fluff, smut | featured couple: 💘🪽
synopsis: jaemin navigates jealousy for the very first time. most of it a war in his own mind. and because of it, he does something else for the very first time too…
↳ takes place in flying kiss -> scene: bunny’s reveal party
“shouldn’t you get your girlfriend, jaemin?” mark asks casually, “i know that wonbin guy has a thing for her.”
jaemin just laughs, completely unbothered, the sound low and confident as he sips from his drink.
“nah, he doesn’t stand a chance,” he says, the dream boys around him chuckling in agreement, the easy camaraderie easing any tension before it can take root.
his eyes drift back to you anyway, watching as you throw your head back in laughter at something giselle said, your arm twisted around somi’s.
you’re a bit tipsy now, the alcohol making your movements loose and joyful, cheeks flushed as you sway gently to the beat. it’s why you don't really notice wonbin's advances — you're just having fun with your girls and currently playing matchmaker with bunny and her long time crush, sungchan.
the riize boys settle in deeper, sungchan and bunny inching closer, while shotaro pulls somi into a quick twirl that has her squealing. wonbin, though, keeps his focus on you, edging closer with that flirty smile of his. he comments on the song playing, his hand brushing your elbow and you nod along absently, more caught up in giselle’s exaggerated retelling of a disastrous date than anything else.
to you, it’s all harmless chatter. your relationship with jaemin is solid, happy, and secure — no room for wandering thoughts about anyone else here.
from across the room though, jaemin watches it all. his initial amusement fading into something sharper as wonbin doesn’t let up. the guy’s laugh rings out too loud, his fingers grazing your lower back when the crowd shifts, his gaze lingering a little too long.
jaemin’s jaw sets, an unfamiliar coil tightening in his gut. he’s never been a jealous person. but at this moment he’s learning that maybe the green monster lives inside him too.
he’s pissed that wonbin is even trying with you.
1) everyone in this damn university knew you were his. if it wasn’t for the public confession he shared through his radio show — then the amount of times he’s kissed you in public, held your hand, pulled you to his side, should have been enough.
2) what the hell happened to bro code?
every second his “bro” stays planted next to you makes something in jaemin’s chest tighten another notch. the audacity to even breathe in your direction is astounding.
his tongue presses against the inside of his cheek, gaze darkening as he watches the way you tilt your head when you listen, the way you smile politely — and suddenly he’s hyperaware of how easy it would be for someone else to misunderstand that smile.
how easy it would be to want more.
his fingers curl tight around his red cup.
it’s irrational. he knows it is. you’ve never given him a reason to feel jealousy. if anything, you’ve always been so openly his that it makes his chest ache.
and then you catch his eye through the wave of bodies, flashing him that bright, sweet smile — the one that always hits him right in the chest, making his pulse kick up.
god, he loves that smile. it's his.
before he can move, you're the one closing the distance, weaving through the crowd with determination, your hand reaching for him as you pull him toward you, “baby,” you say, voice warm and playful over the music, tugging him into your space.
he watches you, amused, the irritation from moments ago melting under your touch.
“you having fun, my angel?” he asks, his free hand coming up to tuck a stray hair behind your ear, thumb lingering on your cheek as he leans in closer, the party’s chaos fading to a hum around you both.
“mhm,” you hum softly, the sound vibrating through him as your arms slide up to loop around his neck, fingers threading into the soft hair at his nape.
“why are you standing here all alone, though?” you ask, tilting your head up to meet his gaze, your breath warm and laced with the faint sweetness of whatever fruity drink you've been sipping.
jaemin’s mouth quirks into that teasing grin, his hands settling on your hips, thumbs tracing lazy circles over the fabric of your shirt, “my girl has been stolen from me and i was waiting for her to remember i existed,” he says, voice low and playful, though there's a flicker of a hidden edge in his tone.
your eyes widen in mock surprise, a giggle bubbling up as you lean in closer, “sorry,” you smile sheepishly, “—giselle and i were full on operation get bunny and sungchan together but then she started telling this story about this date she went on and—”
he doesn't let you finish, cutting you off with a kiss that's slow and deep, lips claiming yours in a way that silences the world around you. one hand cups the back of your head, fingers tangling gently in your hair, while the other pulls you flush against him, the heat of his body seeping through your clothes. you melt into it, kissing him back just as deeply.
when he finally pulls back, his forehead rests against yours for a beat, “i was kidding, angel,” he murmurs softly, “you were having fun…you don’t need to explain that.”
but even as he says it, jaemin’s mind flashes back to wonbin's hand on your waist, the way the guy had leaned in too far. it’s stupid and he knows it — you're here now, wrapped around him like you belong, which you do.
still, the possessiveness simmers under his skin, a quiet burn that makes him want to stake his claim all over again, right here if he could.
“hmm, i want to have fun with you though,” you murmur, your voice a soft, teasing lilt that cuts through the war in his mind, fingers tracing heart shaped patterns on his chest.
jaemin's eyes sparkle with interest, his last remnants of irritation fading into the background.
“want to dance?” he suggests, hand already shifting to the small of your back, ready to lead you into the crowd.
you shake your head, a playful no, “a different kind of fun...just me and you,” you say, a small sultry smile forming on your lips, your gaze locking onto his with unmistakable intent.
the words hang between you, charged and electric — he knows exactly what that means, the way your body language shifts, pressing closer.
heat surges through him. he doesn’t hesitate, nodding with a low hum of approval as you take his hand, fingers interlacing with his and start guiding him away from the dance floor, weaving through the bodies of laughing friends and strangers as you head toward the stairs.
as you pass the group — giselle mid-story with somi and shotaro listening to her, sungchan and bunny off to the side — jaemin’s gaze lands on wonbin. the guy is standing there, drink in hand, his eyes flicking toward you with that same lingering interest from before, almost like jaemin was invisible to him.
jaemin can’t help it — he glares, sharp and unyielding, his free hand dropping to your waist instead, fingers digging in just enough to tighten his hold, pulling you flush against his side. he doesn't say a word, but his eyes say enough:
she’s mine.
wonbin meets the stare for a split second, then looks away, busying himself with his drink, the message received loud and clear. you don't notice the silent exchange, too focused on the warmth of jaemin’s body next to yours, the anticipation building with each step up the stairs.
the party’s noise dulls to a muffled throb behind the closed door of his bedroom, the space familiar and intimate. you release his hand only to turn the lock with a soft click, sealing you both away from the world below.
without a word, you both kick off your shoes like it’s routine. he sinks down against the headboard, his legs stretching out and you climb onto his lap, straddling him with effortless familiarity. his arms snake around your waist immediately, pulling you flush against his chest, clingy in a way that makes your heart flutter, hands roaming lazily up your back, providing you that comfort only he could.
you settle in, your head resting on his shoulder for a moment before you tilt up with a conspiratorial grin.
“i think operation get bunny and sungchan together is a total success,” you declare, your voice light and buzzing with the thrill of the evening’s gossip.
“is it now?” jaemin murmurs, his lips curving into an amused smile against your temple, clearly delighted by your enthusiasm. he nuzzles closer, his breath warm on your skin.
“yeah, didn’t you see them? they were standing so close—like, really close,” you gush, your eyes sparkling as you replay the moment in your mind.
“hmm,” he hums thoughtfully, “that’s too bad for jeno, though.”
you pull back slightly, raising a brow in curiosity. “what do you mean?”
he chuckles softly, his gaze softening as he watches your expression, “he’s been in love with her since forever. i just don't think he knows yet.”'
your eyes widen, surprise flickering across your face, “really?!”
“mhm,” jaemin confirms with a nod, his thumb stroking soothing circles on your side.
“huh,” you muse, tilting your head as you process the revelation, “well, maybe this will finally help him see things clearly... though that's a little unfair to bunny, don't you think?” you pout, your lips pursing in that endearing way he absolutely adores.
he finds it utterly adorable, his chest rumbling with a quiet laugh, “and why’s that, angel?”
“becauseee…jeno's had all these years to figure it out, and it takes someone else giving her attention for him to wake up? i don’t know... she deserves more than that. someone who sees her right away, without needing a push.”
jaemin hums in delight, the sound vibrating through you where you're pressed together, his eyes crinkling at the corners as he drinks in your thoughtful expression.
“....unless you know something i don’t,” you add, prying with a playful nudge, eager for more of the juicy details.
he smiles, a fond, reminiscent curve to his lips, “you should’ve seen those two the start of freshman year. i used to watch them and wish i had something like that — real, effortless...the kind of connection that just clicks...if it doesn’t happen now, i’m sure it will eventually.”
“what changed then? why didn’t anything happen between them?,” you ask, completely absorbed.
“the whole party life got the best of us,” he replies with a wry shrug, his voice tinged with self-deprecating humor, “chasing thrills, avoiding anything that stuck. it was fun enough to get lost in.”
you hum softly, falling quiet for a beat, your fingers absently tracing the collar of his shirt as the weight of his words settles.
“do you miss it?” you ask, voice gentle, eyes searching his.
for a split second jaemin just stares at you, like the question itself is ridiculous. then he lets out a quiet breath and shakes his head no.
“not even a little,” his expression softens, something unguarded slipping through as he reaches up to tuck a loose strand of hair behind your ear, “i’m happy exactly where i’m at — with you.” his voice drops, intimate and sure, and before you can respond, he leans in, capturing your lips in a kiss that’s slow and sweet, like a promise sealed in the quiet.
it’s tender, his mouth moving against yours with unhurried affection, soft presses that deepen gradually.
in jaemin's mind, it hits him again, sharp and undeniable — how deeply he loves you, this easy rhythm you share, the way you fit against him like you were made for it, the way you look at him like he’s more than the image everyone else sees.
and how love like this doesn’t come without it’s uglier edges.
because with the warmth in his chest comes the quieter things too — the things he doesn't always like admitting to himself. like the sharp flicker of jealousy when someone looks at you a little too long, the instinctive pull to keep you close, to remind the world that you’re his.
it’s never loud. never reckless. jaemin has always been good at keeping those feelings tucked neatly beneath the surface. but they’re there.
the kiss heats up, growing hungrier as his hands slide under your shirt, palms warm and insistent against your bare skin. your breaths quicken, bodies shifting with building need, until he can't hold back anymore.
with a low groan, he swiftly moves you beneath him, his weight pressing you into the mattress as he hovers above, eyes dark with desire.
his body settles over yours, bracing one arm beside your head, his other hand cupping your cheek. the kiss breaks only for him to trail his lips down your jaw, nipping lightly at your skin while his fingers work the buttons of your shirt open, exposing your chest to the cool air of the room. you arch up into him, hands sliding under his shirt to feel the hard planes of his abs, urging him closer.
“you're so beautiful,” jaemin whispers against your collarbone, his voice rough with need as he pushes the shirt off your shoulders, tossing it aside along with your bra.
his mouth follows, kissing a hot path down to your breasts, his large hand squeezing the flesh before he sucks it into his mouth, drawing a gasp from you. your fingers tangle in his hair, holding him there as heat sparks through you.
his free hand grips your hip, thumb dipping under the waistband of your pants, an undercurrent of urgency in his touch, his breaths coming faster.
you tug at his shirt in response, and he pulls back just enough to yank it over his head, revealing the toned lines of his torso that you trace with your nails.
clothes shed in a hurried rhythm — your pants slide down your legs, his following suit until you're both bare, skin flushed and heated.
jaemin’s cock stands hard and thick against his stomach, the tip already glistening as he positions himself between your thighs, nudging them wider with his knee. he reaches down, fingers parting your folds to stroke his cock against your clit in slow circles, watching your face intently as you moan, your hips bucking up for more.
“jaem... please,” you breathe, your voice needy, and he groans at the sound, leaning down to kiss you deeply while he teases you with his tip.
“i’ve got you, angel,” he murmurs against your lips, his eyes locking on yours, dark and possessive, before pushing in slowly. inch by inch, he fills you, the stretch burning sweetly as your pussy adjusts to his size, gripping him tight.
you both sigh at the connection, his forehead resting against yours as he bottoms out, holding still to let you adjust to his length the way he knows you need to.
“feels so good,” he says softly, starting to move with shallow thrusts, his hips rolling in a steady rhythm that builds the heat between you. your legs wrap around his waist, pulling him deeper, and he quickens the pace just a fraction.
but as he watches you — eyes half-lidded, lips parted in pleasure, soft moans of his name slipping past them, your breasts bouncing with each gentle snap of his hips — something twists in his chest.
the jealousy surges back, uninvited, hot and sharp.
wonbin thought he could have this? get you like this? see you writhing under him, moaning his name?
the thought fuels him, his thrusts turning harder, deeper, his hand gripping your thigh to hitch your leg higher, angling so he hits that spot inside you with every drive.
you cry out, nails digging into his shoulders as the shift catches you off guard, pleasure spiking.
“jaemin—oh god,” you gasp, doing your best to meet his movements, your pussy fluttering around his cock.
he growls low in his throat, the sound primal as he pounds into you, the bed creaking under the force.
no one else gets this. you’re mine.
his free hand pins your wrist above your head, his mouth claiming your neck with bites that will surely leave marks, sucking hard enough to bruise. the possessiveness drives him, each slap of skin against skin echoing his frustration.
fuck that guy. this is what you look like for me. and only me.
his hips snap relentlessly now, his cock dragging against your walls in a way that has you clenching tighter.
“jaem—,” you whimper his name as the ecstasy builds way too fast, coiling low in your belly, your legs shaking at the force.
something was different. sure, you weren’t strangers to rough sex, but even when it was rough, jaemin usually liked to take his time with you. liked to accompany his rough thrusts with praises and soft kisses. right now, he’s being too quiet. no whispers of sweet nothings. just frustrated grunts spilling from his lips, his eyebrows furrowed.
he grips your ass, lifting you slightly to fuck you even harder, the head of his cock brushing your cervix with each plunge. sweat slicks your bodies, his muscles flexing as he chases the edge, watching your face contort in bliss, your fingers clenching around his arm desperate to keep yourself grounded.
his hand slips between you, rubbing your clit frantically, and you were an absolute goner.
“come for me,” he rasps, his own control fraying, the jealousy morphing into fierce triumph.
he’ll never know how you feel, how you sound when you shatter.
you cum hard, mouth open in a silent moan, eyes shut in bliss, your pussy clenching incredibly tight, warm juices coating his cock.
the sensation undoes him. jaemin buries himself to the hilt, a guttural moan escaping as he cums inside you for the first time, hot spurts flooding your walls, filling you deeply, marking you in the most intimate way — it’s new. this feeling of him releasing entirely within you, his usual caution forgotten in the heat of the moment.
you’ve been on birth control since early in your relationship, so it doesn't worry you, but he’s always been so careful — always choosing to wear a condom or pulling out to spill across your stomach instead.
he collapses forward, chest heaving against yours, both of you panting in the heavy silence broken only by fading breaths.
after a moment, he rolls to the side, pulling you into his arms with a possessiveness that lingers even now. his hand strokes your stomach lazily, but you can sense the remnants of that edge in the way he holds you close, like he's anchoring himself.
you nestle against his chest, tracing patterns on his skin as your heart rate slows, the warmth of his cum inside you a tangible reminder of the difference tonight.
“that was... different,” you murmur softly, tilting your head to look up at him. “and you... you came inside me. everything okay?”
jaemin pauses, his fingers still tracing lazy circles on your back. he forces a smile, the corners of his mouth lifting, but it doesn't quite reach his eyes — the usual warmth dimmed by a shadow you recognize all too well.
“nothing's wrong... just couldn't help myself,” he says, his voice light, almost playful, as he leans in to brush his lips against your temple.
you shift slightly in his arms, propping yourself up on one elbow to search his face more closely, “jaemin... we promised we’d always tell the truth,”you remind him gently, your hand cupping his cheek, thumb stroking the line of his jaw.
he sighs, a deep, reluctant exhale that ruffles your hair, his gaze dropping to the sheets tangled around your legs before meeting yours again. the confession tumbles out like he's testing the words.
“i... i got jealous,” he admits, the admission rough around the edges, his brow furrowing as if the emotion itself puzzles him, “wonbin was all over you down there — his hand on your back, leaning in too close. and i just...i don't know what to do with it. i've never felt like this before. it's stupid, right? everyone knows you’re mine, but seeing him touch you like that... it pissed me off."
his hand tightens on your hip, pulling you closer as if to reaffirm the words. you can feel the tension easing from his body as he lays it bare, his usual confidence giving way to this unfamiliar territory.
and he knows it’s not about control. not really. it’s just that loving you this much does something strange to his instincts. it makes him protective in ways he never used to be. makes something territorial stir quietly in his chest.
meanwhile, a secret thrill courses through you at his confession, the raw edge of his jealousy making your heart flutter in a way you hadn't expected. it’s endearing, seeing the confident jaemin unravel just a bit over you, and a tiny smile tugs at the corners of your lips despite the seriousness of the moment.
he notices immediately, his head tilting as he cocks an eyebrow, that familiar playful glint trying to push through the lingering tension, “are you enjoying this?” he asks, his voice laced with mock accusation, though his hand still rests softly on your hip, thumb brushing over your skin.
before he can say more, you lean in and pull him into a deep kiss, your lips molding against his with a softness that contrasts the earlier urgency.
when you break away, your breath mingles with his as you murmur, “now you know how i feel with your fanclub.”
jaemin lets out a genuine laugh then, the sound rumbling from his chest and easing the last of the green from his eyes. he shakes his head, pulling you even closer so your bodies align perfectly.
“angel, that’s different,” he says, his tone affectionate and reassuring, fingers weaving into your hair, “you know i only have eyes for you.”
you smile back, the expression warmer now, your voice dropping to a softer whisper as you trace a finger along his collarbone, “it’s not different because i only have eyes for you, too.”
the words hang in the air between you, simple yet profound, sealing the vulnerability with a quiet promise. his gaze softens completely, understanding, and he presses a lingering kiss to your forehead.
the intimacy lingers in the air, your bodies still pressed close in the aftermath, his warmth enveloping you like a promise.
you shift slightly against him, feeling the subtle twitch of his cock stirring back to life, and a playful pout forms on your lips as you meet his gaze.
“now fuck me properly, won't you? that ended too fast,” you murmur, your voice a teasing, adorable whine.
jaemin’s eyes darken with renewed hunger, but a soft smile curves his mouth, affectionate and knowing.
he doesn’t rush this time — instead he guides your leg over his hip so you're facing each other in a close spoon, bodies aligned perfectly, his chest to yours. his hand slides down your thigh, gripping firmly as he positions himself, his hard cock fully against your slick folds. the tip teases your entrance, rubbing back and forth through your wetness before he pushes in slowly, inch by thick inch, stretching you open with a deliberate gentleness that makes you gasp and arch into him.
“fuck, angel,” he groans low, his breath hot against your ear as he bottoms out, his hips flush against yours.
you sway your hips in rhythm with his, matching the unhurried but deep thrusts that rock you both together, his cock dragging along your walls with every slide.
“just like that, angel, look at me.”
his free hand snakes between your bodies, fingers finding your clit, thumb pressing firm, insistent circles over the swollen nub, making your pussy clench around him in response.
he watches you the entire time — his gaze locked on your face, intense and unwavering, drinking in every flutter of your lashes, every parted gasp and moan from your lips. he loves watching you like this, utterly consumed by him, your body responding only to his touch.
“god, you take me so perfectly,” he murmurs, voice rough with desire, his thrusts picking up a fraction, grinding deeper to hit that sensitive spot inside you that sends pleasure up your spine.
the build is slow but electric, his cock plunging in and out with wet, obscene sounds filling the room, your juices coating him as you rock together. your hands roam his back, nails scraping lightly, urging him closer.
“only you can fuck me like this,” you whisper breathlessly, locking eyes with him, your words a soothing balm to his earlier jealousy, “only you make me feel this good — filling me up just right.”
his response is a deep, possessive growl, hips snapping forward harder now, the passion igniting as he claims you with each thrust.
he grunts, thumb circling your clit faster, pressing down to make you whimper and buck against him. your bodies slick with sweat, he leans in to capture your mouth in a soft, deep kiss, tongues tangling as he fucks into you with building fervor, the spooning position allowing him to grind his pelvis against your clit on every inward stroke.
“god, jaemin, yes — right there,” you moan into his lips, pussy fluttering around his thick length, the coil in your belly tightening unbearably. he doesn't let up, pounding deeper.
it's too much — the tight circles on your clit, the way his dick hits every nerve, the sweet words and little sounds he’s making by your ear — your orgasm crashes over you with no warning, walls clamping down hard on him, milking his shaft as you pull him in closer, trying to ground yourself, body shaking, thighs trembling.
he doesn't falter, thrusting into your oversensitive pussy as he chases his peak, the wet slap of skin echoing louder.
“shit, you feel so good clenching like that,” he grunts, forehead pressed to yours, sweat dripping between you.
you encourage him through your haze, legs wrapping tighter, “cum inside me again, baby — only you get to mark me as yours.”
that pushes him over the edge for the second time — his rhythm stutters, hips grinding deep one last time before he buries himself to the hilt and erupts, hot ropes of cum flooding your walls, coating you thoroughly as a guttural moan tears from his throat, holding you pinned against him, his cock twitching with each spurt until he's spent, pulsing inside your heat.
he stays buried deep, his arms wrapping around you protectively as the aftershocks fade, the room filled with nothing but your shared breaths and the profound connection that no one else could touch.
as the waves of pleasure subside, jaemin remains nestled deep within you for a lingering moment, his body heavy and sated against yours, the warmth of his release seeping into your core. your breaths slowing from ragged gasps to soft sighs.
with gentleness, he eases out of you, his hand stroking your thigh in a soothing caress. he reaches over to the nightstand, grabbing a handful of tissues, his touch tender as he wipes away the evidence of your shared passion.
“sorry for being too rough earlier, angel,” he murmurs, his voice laced with quiet remorse, eyes searching yours with a mix of affection and concern, “i just... needed you so much tonight.”
you tilt your head, pressing a tender kiss to his damp forehead, your fingers threading gently through his tousled hair, “i love you,” you whisper.
he lifts his gaze to yours, eyes soft and shimmering with unspoken emotion, a smile blooming slow and radiant on his lips.
“i love you more,” he murmurs back, his voice a velvet caress, sweeter than honey as he nuzzles closer.
with a contented hum, he pulls you into his embrace, his head finding solace on your chest. his ear presses against your heartbeat, steady and reassuring, while his arm drapes possessively over your waist, legs tangling with yours in a lazy knot.
the world fades entirely, leaving only this.
and the jealousy may come again. but he knows it would never be enough to overshadow the love. just enough to remind him how much there is to lose.
🪽
an: finally, a loverboy extra for you! notice how i didn’t say sunday? lol yeah…i could not keep up with that :( sorry…i flew too close to the sun with that idea. anyways the second sex position is inspired by benophie iykyk ;) let me know what you think of jealous jaemin 💘
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TAGLIST: CLOSED.
