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joon4eva · 8 months

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just the tip? — kim namjoon.

genre: established relationship au.

summary: you and namjoon are left alone together for a little too long. or: in your childhood home, you learn just how much is really "just the tip" with namjoon.

word count. 3,994 words.

warnings. semi-public sex, namjoon doesn't need much convincing, oral sex (m. receiving) unprotected sex but reader is on birth control, creampie, namjoon takes oc's underwear.

note: happy early bday to our leader who keeps me sane and motivates me to keep living everyday. here is some horny fluff word vomit inspired by all the content we've been getting of namjoon looking delicious in his buzzcut lately. i couldn't resist. pics above are from @rkivsfe ♡

Namjoon seemed plucked straight from the pages of a classic romance, a perfect gentleman in every sense.

Throughout the day, your parents had been gracious hosts at their house, and Namjoon had gracefully navigated each conversation, his charismatic charm and impeccable manners in full display.

Yet, it wasn't the refined qualities occupying your mind; rather, it was his freshly buzzed hair and the allure of his domesticated moments – like when he insisted on helping your mother – that made your heart race, feverish heat flooding your core at the thought of creating a home with him someday.

The both of you had never really properly broached the topic of children, especially since you were on birth control. While you had only been dating for two years, discussions of having children had stayed respectfully on the back burner; the decision to wait until marriage, or at least until life was less hectic, appeared sensible to both of you.

For now, life as it was felt fulfilling.

But lately, as you watched Namjoon tenderly cradle a friend's baby or playfully chase nieces and nephews at family gatherings, you began to see the appeal of having a family with Namjoon. It was hard not to want it sometimes.

It took every ounce of restraint not to lunge at him right there, an insatiable hunger bubbling within, barely contained.

And when the rest of your family continued to mingle in the backyard, that was the moment you decided it was time to make your move.

Namjoon's eyes narrowed perceptively, instantly detecting the undercurrent of mischief in your stride.

Your smile, wide and radiant, was Oscar-worthy enough to mask your ulterior motives from everyone else; however, Namjoon could see right through your seemingly innocent offer of showing him a 'tour' of your childhood bedroom.

Determinedly, you grasped his arm firmly and practically dragged him up the staircase of your parents’ house and up to your old room located at the far end of the second-floor hallway.

—

To his credit, Namjoon nearly fell for your act.

He attentively followed along while you animatedly led him around the room; pointing out the remnants of your teenage years evident in the faded posters of pop bands adorning the walls, a meticulously arranged collection of Studio Ghibli figurines that adorned shelves, and a colorful assortment of plush toys scattered about.

Golden sunlight pours through the window, playing on the sparkle in your eyes as your sundress embraces every curve. Beneath Namjoon’s clothes, a nagging ache intensifies, matched by the growing warmth and strain in his pants as he admires your radiance.

Slowly, time seemed to suspend itself, while the walls in your room appeared to close in on you both. Soon enough, you found yourselves standing face-to-face, completely absorbed by each other's presence.

“You okay?” you ask in a hushed tone.

Namjoon's eyes sparkle with mischief, his eyes shamelessly lingering on your figure. The corners of his mouth turn up in a cheeky grin.

"I know what you’re thinking."

Brows knitting together, you blink in feigned innocence. "I don't know what you're talking about," you murmur, eyes evading his as your arms cross protectively.

“Oh, of course. You were just so eager to show me your room,” he states matter-of-factly.

Namjoon’s grin grows wider as he confidently strides closer, hands casually tucked in his pockets. “Nothing more to it, right baby?”

What a fucking tease.

Warmth creeps up your cheeks as nervous laughter bubbles up, eyes avoiding his penetrating stare – Namjoon always had an uncanny ability to read you like an open book.

It was something that instantly made heat bloom between your thighs. And when he was looking at you like that, it was impossible to hide anything from him.

He tilts his head and studies you with an arched brow. “You have that look.”

“What look?”

“The bedroom eyes. I’ve seen it before.”

“I do not!” you manage to choke out, the words nearly vanishing from your throat.

Namjoon just chuckles, disarmingly smug. “Hm. If you say so.”

Within moments, you uncross your arms and navigate the remaining distance, your hands coming up to explore the contours of his body – fingertips slipping under his shirt, feeling the muscles tensing in his back before coming around and daintily migrating northward across his chest.

Namjoon leans down, claiming your lips with a fleeting kiss. "We probably shouldn't," he breathes out softly against your parted lips.

"Hmmm," you pout. "And why not?"

Not waiting for an answer, your lips continue their exploration – slowly moving from his lips, tracing the angles of his jaw, and dancing between gentle nibbles and fervent suction.

Beneath his shirt, your fingers tease his chest, leaving light scratches before brushing against his sensitive nipples.

It only took seconds before you could feel how hard and ready Namjoon was, as his skin burned hotter beneath your touch and his breaths grew shallow.

Trying to suppress a groan and maintain some level of composure, Namjoon bites down on his lip and whispers your name with an unsteady voice.

"Your family is literally downstairs."

“They’re actually outside.”

Smiling mischievously, you return your attention to him by licking a slow stripe from his neck to the sensitive spot just below his ear – a place you’ve discovered he particularly enjoys being teased.

“I can’t promise I’ll want to stop at just kissing,” he warns with equal parts desperation and plea – a last attempt at cracking your resolve as his hands reflexively grip your waist in a manner both possessive and protective.

“And what?” you breathe out, each word soft and slow, a challenge in disguise. “Where would you want to stop?”

“I won’t.”

Softening your gaze, you allow your lips to ghost over his. “Then don't hold back,” you whisper, pressing a tender kiss to the corner of his mouth.

His heated gaze flickers across every inch of you – taking in your expression, the way your body presses against his. You couldn't resist further taunting him.

Your hands slide down his chest and towards the belt loops of his jeans, giving them a playful tug before swiftly moving to unbutton them.

It’s at this moment that Namjoon seems to snap out of his haze.

His lust-addled stupor evaporates like lifting fog, replaced by a rush of clarity where the lines between right and wrong become difficult to blur.

Suddenly decisive, he intercepts your wandering hands with a firm but gentle hold.

“____. No.”

“I’ll be quiet,” you promise him, a sultry smirk playing on your lips, both tempting and dangerous.

“Baby. We are not fucking in your parents’ house—especially in broad daylight.”

"Oh, Joonie…" you sigh lovingly, pressing a tender and lingering kiss to the small mole just below his lip.

"Always such a gentleman. Holding my hand, praising me in front of my parents, even charming my mom... You don’t wanna fool around with me here?"

Namjoon's mouth opens as if to protest further, but any words that threaten to come out are swallowed up by a groan that he struggles to stifle at the sensation of you swiftly tugging down his jeans and boxers, just enough for you to wrap your warm, tight hand around his thick length.

"You’re…s-seriously out of your mind. We…we really shouldn't," he manages to utter, each word strained by the effort he puts into maintaining control – his dark eyes burning with barely restrained desire.

You pause your movements and look into his eyes. "We can make it quick. I promise I'll be quiet."

But you knew Namjoon had always preferred taking things slow, savoring every moment, especially during sex with you. He was never really a fan of rushing, and you learned along the way he was big on foreplay.

Yet seeing you present yourself before him like a priceless treasure, accompanied by batting those alluring, pleading eyes at him, Namjoon can't help but consider going against his instincts for once – if only for five fleeting minutes.

“I knew you didn’t want to bring me up here just to—Fuck, hold on. Wait,” he stammers, suddenly remembering, “I– I don’t have any condoms. Well, I didn’t bring any, for obvious reasons.”

An awkward silence settles between you two as the unspoken question lingers, and you gaze into his eyes, searching for an answer.

His eyes widen just a fraction when he realizes what you’re silently asking.

“God, are you…—? No," he says firmly. "Absolutely not."

"But I've been on birth control for years!" you whine.

Namjoon closes his eyes briefly and exhales sharply, tension radiating from his clenched jaw.

“Babe,” he utters with a heavy sigh.

"Namjoon," your voice is barely audible as you breathe the plea into the curve of his neck, the warm air causing a shiver of desire to course through him.

Your thumb glides across the tip of his cock, smearing the glistening pearl of pre-cum that gathers from the tip.

Your lips begin to trail gentle kisses along the length of his throat, all while teasingly drawing the tip of your fingers up and down his shaft.

Namjoon's breath catches in response to your touch, gasping as he involuntarily thrusts upwards to meet your hand.

“What about ‘just the tip’?” you whisper. “Isn’t that something that guys like to do?”

“Well… I-I’m paranoid and we should be careful,” he stammers out. “It only takes one time, you know. Can’t this wait until we get home?”

Noticing his faltering resolve, your lip catches between your teeth to suppress a sly grin. Wordlessly, you slowly sink to your knees in front of him.

He watches transfixed as your tongue traces a slow path up the engorged vein of his cock, pausing to swirl around the head before taking him fully into your warm mouth.

Namjoon emits a soft groan - hands delicately cradling your jaw - while your cheeks hollow and your head begins to bob rhythmically, dewy eyes peeking out from beneath your lashes to watch him.

His head falls back and his eyes squeeze shut, fighting to restrain a moan as desire shoots through him like wildfire, fuelling your own craving for him even more fervently.

You could sense him teetering on the edge, his self-restraint waning with each moment until, in one deft motion, he withdraws from your mouth just enough to stagger back, hoisting you up by your arms and steering you backwards until the mattress edge halts against your knees and topples you onto it.

“You’re fucking shameless, you know that?” he pants, scrambling to shove his pants further down and stepping between your legs, holding his hard cock and leaning over you.

Below him, you giggle and hurriedly push your dress up, sliding your panties down and kicking them aside.

Grabbing your wrists, he pulls them over your head and pins them there.

And as his body aligns with yours – his strong chest firm against your breasts, his crotch deliciously nestled between your thighs – every last drop of doubt vanishes from both of your minds.

Under the sultry gaze of his darkened eyes, he grips your face, his large hands cupping your delicate cheeks, thumbs tenderly caressing the soft skin.

Your mouths meet urgently; his lips hungrily pressing against yours to lick and tug at your bottom lip, expertly swallowing every stifled sound that begs release.

"Joon," you murmur tenderly against his parted lips, pausing between kisses. "Touch me, please."

Your honeyed pleas don't go unanswered; Namjoon's hands swiftly comply with your demand, gently pulling down the elastic neckline of your dress far enough to let your breasts spring free.

"Such a tease, wearing this," Namjoon grunts, grabbing a fistful of your dress, "fuck."

His eyes darken at the sight before him: your dress invitingly pooled at your waist, thighs parted and slightly glistening from your arousal visible even to him. It was nearly impossible for him to deny you anything at all when you pleaded with that breathy, needy tone.

His lips move with purpose, trailing a series of warm, sweet kisses across your collarbone, down to the valley between your breasts – lingering just long enough to elicit a breathy gasp before grazing your stiff nipples with feather-light nips.

You struggle to bite back any gasping moans – honoring the promise you hastily made earlier – with only the softest sighs escaping your pursed lips.

“Feels good?" Namjoon murmurs softly, his hand navigating the space between your bodies to trace delicate circles around your throbbing clit.

"God, you're soaking wet already and I've hardly touched you."

Desperately trying to maintain silence, you find your hips moving instinctually in rhythm with the sinfully slow motions of his long fingers. They gather your slickness, teasingly near your dripping entrance with one finger before returning upward to trace unhurried, deliberate circles on your clit again with two fingers.

“Wanna come first?”

Your bottom lip captured between your teeth, you shake your head.

"Can we… Can you pull out?" breathlessly escapes from your lips.

He groans your name gently, punctuating his words with a delicate nip on your jawline. "What happened to 'just the tip'?"

"I changed my mind," you whine weakly, stifling a frustrated groan when his fingers stop their movements.

Namjoon's chuckle against your skin is light and teasing. "My greedy girl,” he coos affectionately against your lips before pressing a lingering kiss on the corner of your mouth.

“Wonder what your parents would think if they knew that right now, their precious daughter was up here with me, legs spread wide and begging for me like this? Hmmm?"

His dirty words make you choke on a barely suppressed moan, but you do nothing to discourage him.

He doesn't pull his fingers away from your aching core – instead, he bends down to lick them clean before gently pressing them back inside of you.

“Please, just please, can we…” your voice falters as it dissolves into unintelligible murmurs, desperate for relief, desperate for him to fill you up the way you want.

"So needy," Namjoon chuckles softly at your struggle for coherence; swiftly replacing his fingers with the head of his cock.

"You’re sure about this?" he whispers hoarsely, the feel of him nudging at your entrance sending already rioting butterflies into overdrive.

Your hands instinctively slide over the firm contours of his backside, urging him closer as your hips rock against his. “Wanna feel you. All of you,” you softly mewl in his ear.

A primal growl emerges from Namjoon’s throat before he nips lightly at the tender flesh of your neck. “So filthy.”

Namjoon finally pushes inside of you, inch by torturous inch, until he’s buried to the hilt inside of you, slowly filling and stretching you in a way that makes your legs shudder and lock around his waist.

His hips still, giving you time to get adjusted, or perhaps in an attempt to try to steady himself.

He nuzzles into your neck, spreading his warm breath all over the soft skin there, nudging aside the fabric of your dress to press a kiss to your bare shoulder.

Your arms come up to wrap around his neck, fingers dancing across his freshly trimmed head, massaging and scratching softly at his scalp.

Your hips slightly roll to guide him deeper, enticing him to start moving.

It's sheer, unadulterated bliss as he pumps into you, filling you up in perfect harmony with your own unsteady breaths.

It feels even better than you thought – so warm and wet and snug around him, nothing has ever felt as good in your life.

Out of all the things you and Namjoon have tried, this was something that you just haven’t done.

And now you know you were ruined.

Ruined for using a condom ever again with this man. Your pulse is pounding so hard against your ears that it seems impossible to focus on anything else at this moment but him and how good it feels to have him bare inside of you.

"You feel so fucking good, baby," Namjoon breathes hotly against the column of your throat. "So tight around me."

He’s fucking into you agonizingly slow and deep; his movements are deliberate and unhurried, each deep, slow stroke filling the air with your muffled moans and the wet sounds of your slick bodies every time his hips snap up against yours.

His hand entwines with yours, palm-to-palm above your head, while his other arm holds you closer by the thigh curled around his waist.

Enveloped in a sensuous fog where your senses blur and bend, you feel him gradually quicken his pace, each thrust growing more intense.

Namjoon nuzzles his face into your neck, soft moans vibrating against your skin.

Teasingly, his pulsating shaft glides out completely – slow, torturously slow – pausing just before thrusting back in; filling you completely, his tip applying pressure to a hidden sweet cluster of nerves within you that ignites an uncontrollable tightening around him.

An unfamiliar sound escapes from your throat – a strange mixture of a whimper and his name – and he gasps before laughter takes over. His hand comes up to quickly muffle your sounds.

"Babe," he warns between giggles and gasps for air. "You promised you'd be quiet."

“But—” your weak rebuttal trails off as warmth spreads across your face and tears gather at the corners of your eyes. “B-but it’s just so… F-feels… so…”

"Shhh, I know," he whispers tenderly against your mouth.

Namjoon’s hand trails from the curve of your thigh to weave through your hair, tightening at the back of your head and pulling you into another heated, sloppy kiss.

“Doing so well for me,” Namjoon whispers between kisses. “Taking it all.” More kisses. Rougher and wetter. “S-so pretty… so fucking pretty wrapped around me like this.”

With each impassioned stroke, you cling to him; muffled moans of his name escaping between breathless kisses as waves of warmth wash over you.

"Want you to come... come inside, Joon, please," you softly plead.

Ardor begins to strain at every seam, your sweet plea threatening to shatter Namjoon's restraint, nearly sending him over the edge.

“Yeah? You close, baby?”

Your eyelids grow heavy, closing tightly as your head fervently bobs in agreement, words failing you.

To this, Namjoon plunges into you with a growl. His cock kisses your g-spot, again and again – and his face is a canvas of pure ecstasy as he thrusts forcefully, his hips colliding with yours while he drives himself even deeper, almost as if he was working to etch himself into your very being.

Your teeth press into his shoulder to muffle your sobs, while your hands frantically wander— sliding under his shirt to rake at the damp skin of his back or bunching at the wrinkled sheets, desperately searching for something to ground you as he pounds into you, each powerful motion stealing more breath from your lungs. It’s a drawn-out, slow rolling orgasm that he drags out of you.

He fucks you through your climax; deep, steady thrusts that makes your legs quiver and your eyes lose focus as they roll back.

A low, guttural moan suddenly escapes him as warmth begins to flood every nook and cranny within you, occupying and filling every gap.

The pulsating of the thick vein lining the underside of his cock throbs with each burst of his release, while your own walls tenderly constrict around him.

Your vision is consumed by whiteness as your eyes clench shut from the sheer force of shared euphoria, your mind wonderfully blank.

And then, stillness.

He stays buried inside you, his large frame forming a protective shield around your body, like a giant blanket swaddling you both.

His nose gently nestles against the side of your neck, as the rhythmic rise and fall of his chest comes to match yours, slowly and peacefully. Your legs are still wrapped snugly around his waist, your hand tracing slow, lethargic circles on his back beneath his shirt.

“Holy shit,” you breathe in elation, “we should do that more often.”

Namjoon huffs out a laugh. Carefully shifting his weight, he hovers above you, hands on either side of your shoulders. “That good?”

“Yeah,” you exhale with a grin. “Really good.” “Really good,” he echoes with a laughter that dances at the edges of his eyes and alights the depths of his dimples.

And you laugh, too, delightfully dizzy and slightly sticky with perspiration as the sun spills through the window's gaps, rays of golden syrup bathing you in warmth.

Namjoon presses a fleeting but tender kiss to your mouth and gently pulls out of you, leaving a lingering emptiness and a sweet ache in your core that lingers.

His eyes curiously wander down to the apex of your thighs and you watch as his hand wanders down to pry your legs apart, his fingertips holding them open as he watches the warm, viscous fluid of his cum slowly form a trail from your entrance. He traces a gentle finger through the slick aftermath, a satisfied hum resonating as your body shudders with blissful oversensitivity.

In this proximity, he bends down to place a tender kiss on the side of your jaw, with words that now flow like honey. “Think we could make that a priority,” he murmurs.

He follows up with another feathery kiss directly upon your lips - an almost chastely innocent smile dancing across his features, almost sinfully ironic.

You find yourself grinning in response to his obvious overture before letting your hand wander lower on his back.

Slowly, deliberately, almost flirtatiously, it reaches and gropes his rear end. "So would you be open to round two then?" you tease playfully as your fingers pinch just enough for him to know you're serious.

Namjoon’s immediate reaction is priceless – a jolt forward accompanied by an adorably indignant yelp as he tries (and fails) to hide his surprise at your boldness. All he can do is shake his head at you in disbelief before giving in once more to laughter.

Eventually regaining some composure, he chides you gently by flicking your forehead with one finger, mimicking chastisement but betraying nothing but affection. You feign complete agony with a comically exaggerated moan and grip to your forehead, earning another round of laughter from Namjoon.

“Jesus, baby,” he says, exhaling a heavy breath, forcing a laugh. “You’re going to kill me.”

He shifts to a seated position on the mattress next to you before standing up, his back straight and his movements curiously graceful for someone so tall.

Your gaze follows him, transfixed as he grasps the edges of his boxers and jeans, lifting them back over his lean hips.

You have to internally curse at how his shirt clings to him like a second skin, accentuating his broad form as he calmly fastens each button, the muscles in his biceps rippling subtly in the process.

This simple act (an undoubtedly mundane and ordinary action) transforms into a hypnotizing display just by virtue of it being Namjoon.

Shifting your position slightly, you slide the straps of your dress back into place, readjusting the elastic neckline to cover your chest.

Propped up on your elbows, your eyes dart around for your missing panties.

Namjoon seems to be almost telepathic in this moment, glancing over and catching your eye.

Realizing what you're searching for, a playful smirk forms on his lips.

He bends down to retrieve your underwear from its hiding spot on the floor and rather cheekily shoves it into his pocket instead of handing it to you.

Feigning irritation, you huff as he saunters victoriously across the room towards the bedroom door with his stolen trophy secured in his pocket.

“Namjoon,” you protest, now sitting up completely. “I need those!”

"You can have them back later," he calls over his shoulder as he begins opening the door.

The curve of his lips breaking into a gentle smile as he adds, "Let's go home. And don't worry, love - I'll keep these safe for you."

As if to emphasize his point, he gives the pocket safeguarding your panties a delicate pat - one last playful jest before disappearing beyond the doorway.

#knj #bts x reader #bts fanfiction #bts imagine #kim namjoon #namjoon x reader #bts #namjoon imagine #kpop imagines #kim namjoon imagine

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