You press your mouth deeper between Seulgi’s thighs. Your tongue glides slowly through her slick folds as her soft, sweet moans fill your small bedroom. Her taste - sweet, warm, and addicting - coats your lips and chin while your hands grip her thick thighs, thumbs digging gently into the soft flesh to keep her spread open for you. Seulgi is completely naked on your bed, her body glowing under the lamplight. Her clothes are dumped in a messy pile on the floor next to your discarded shirt and pants. You’re still in just your boxers, the front already tented and damp from how painfully hard you are.
“Mmm… just like that.”
Seulgi whispers, one hand gently threading through your hair. Her hips roll lazily against your face, chasing the pleasure as you switch from broad, flat licks along her entrance to focused, sucking kisses on her swollen clit. Every time you latch on and suckle, her thighs tremble against your palms and a cute little whimper escapes her throat.

You pull back for a moment, just enough to kiss the sensitive skin of her inner thighs. Soft, lingering presses of your lips make her gasp and squirm. You notice she loves this. The way her muscles jump under your mouth, the way her fingers tighten in your hair when you graze your teeth lightly over the spot you just kissed. You trail more kisses along one thigh, then the other, savoring the contrast between her smooth skin and the slick heat of her pussy waiting for you again. When you dive back in, licking a slow stripe from her entrance up to her clit before sucking it between your lips, Seulgi’s back arches off the mattress.
“Ah-! Yes… you’re so good at this.”
Her free hand clutches the sheets beside her.
“Don’t stop… please…”
You can barely believe this is real. You’re just a trainee. An ordinary, barely-debut-material SM trainee living in this tiny one room apartment near the company building. And yet here you are, face buried between the thighs of Kang Seulgi, one of the most talented and beautiful idols of the company. The same Seulgi whose performances you’ve admired from afar, whose voice you’ve listened to walking past a recording room. Now she’s naked in your bed, legs spread wide, letting you worship her like this.

You lose yourself in the rhythm, long licks, quick flicks of your tongue against her clit, gentle sucking, then back to kissing and nipping at her thighs until she’s panting and her hips are grinding more desperately against your face. Her thighs start to squeeze around your head, thick and strong from years of dance, and the pressure only turns you on more. Seulgi’s breathing grows heavier the longer you eat her out, little gasps turning into shaky whimpers.
“You’re… ah… making me feel so good… I didn’t expect you to be this eager, trainee…”
The way she says “trainee” like it’s both a tease and a dirty little secret sends heat rushing through you. It reminds you again how forbidden and insane this is. If anyone at SM found out that a rookie trainee was eating out one of their senior idols in his tiny apartment, your career would probably be over. But right now, with Seulgi’s slick coating your tongue and her soft thighs trembling under your hands, you can’t bring yourself to care. You slide your tongue inside her as deep as you can, fucking her with it in short, hungry thrusts before returning to her clit, sucking harder this time. Seulgi’s moans climb higher. Her fingers tug at your hair to tell you she’s getting close.
“Keep going… just like that…”
You don’t stop. You lick and suck and kiss with single-minded focus, completely lost in the taste of her, the warmth of her skin and the way her thick thighs keep trying to close around your head every time the pleasure spikes. You keep devouring Seulgi’s dripping cunt with hungry, wet strokes of your tongue. Your right hand slides up from her thick thigh, fingers gliding over her smooth skin until you reach her tight, toned abs. Years of relentless dance are carved into firm ridges that flex under your palm as she squirms. At the same time, your left hand moves to her clit, rubbing slow, firm circles over the swollen little nub while your mouth works her folds.
“Ahh… fuck, that feels so good…”
Her legs, now completely free from your earlier grip, wrap around your back. She locks her ankles together behind you, thighs squeezing your head and shoulders in a powerful, velvety trap that presses your face even deeper into her soaked pussy. You’re completely trapped now…exactly where you want to be. The added pressure makes her pleasure spike. Seulgi arches her back sharply off your mattress, pushing her hips up against your mouth with a desperate whimper. Her chest heaves, breasts bouncing with the motion as she grinds against your tongue and fingers.
You don’t let up. You bury your tongue as deep inside her tight, stuttering hole as it can go, fucking her with it in messy, eager thrusts while your fingers keep rubbing her clit faster. Your other hand leaves her abs and slides higher, cupping one of her soft tits. You squeeze gently, thumb brushing over her hard nipple, rolling it between your fingers as you suck and lick and devour her.
Seulgi’s thighs tremble violently around your head. Her locked legs pull you in tighter, almost suffocating you in the best possible way. Her moans turn into sharp, broken cries.
“I’m-I’m getting so close… don’t stop, please-ahh!”
You can feel it. Her walls clench rhythmically around your tongue, her clit throbs under your fingers, and her entire body starts to tense up like a coiled spring. She’s right on the edge, hips stuttering, thighs squeezing harder, her hand fisting your hair as she grinds shamelessly against your face. Just a few more seconds and she’s going to cum all over your tongue-
Ding-dong
The doorbell cuts through the room like a bucket of ice water. Seulgi freezes mid-moan, her body still arched, thighs still locked around your head. Her chest rises and falls rapidly as she pants, eyes wide with surprise and lingering pleasure. You pull back just enough to breathe, your face slick with her juices, heart pounding. The doorbell rings again. Two sharp, impatient buzzes this time. Seulgi’s legs slowly loosen around you, though she doesn’t let go completely. A small laugh escapes her lips as she looks down at you, cheeks flushed, clearly embarrassed as if she just realized what you and here were doing.
The doorbell rings a third time, longer and more insistent.
You reluctantly pull away from the warm, slick heaven between Seulgi’s thighs with a heavy, regretful sigh. Her legs unlock from behind your back, and you feel her thighs tremble as they slide off your shoulders. Seulgi lets out a soft, disappointed whine, her hips twitching once like she’s still chasing the orgasm you were so close to giving her. Her cheeks are flushed deep pink, chest rising and falling quickly, and she props herself up on her elbows to look at you with big, needy eyes.
“We were so close…”
She murmurs, biting her lower lip. She looks genuinely upset that the pleasure got ripped away right at the edge. You wipe your mouth with the back of your hand, heart still racing.
“I’m sorry… I have to check. Almost no one ever rings my doorbell. It’s either the landlord or…”
You don’t finish the sentence. Maybe you already know.
You climb off the bed and pad barefoot across the small apartment. Your upper body is bare, skin slightly sweaty and glistening from the heat of what you were doing. You take a deep breath and open the door.
There she stands.
Sooyoung

She looks as dangerous and confident as she always does, even in the dim hallway light. Tall black leather over-the-knee boots hug her long legs perfectly, the shiny material catching the light. A long, expensive-looking black coat covers everything else, cinched at the waist with a belt, hinting at whatever she’s wearing underneath. Her hair is down, dark waves framing her sharp, beautiful face.
Your eyes widen in genuine surprise. The expression makes the corner of Sooyoung’s mouth curl into a chuckle. But it’s not warm or amused. It’s dark. The sound sends an icy shiver racing down your spine. You can already tell she’s disappointed by your reaction, and you know from experience that Sooyoung’s disappointment always comes with consequences.
You swallow thickly and bow your head slightly, voice careful and respectful.
“Sooyoung sunbae-nim… good evening.”
She tilts her head, one eyebrow rising.
“Why do you look so surprised?”
Her voice is smooth like honey but edged with steel.
“It’s my birthday today. I decided to give you the honor of spending at least part of it with me. You should be grateful.”
“Th-thank you, sunbae. Really. I’m… I’m honored.”
But Sooyoung’s playful expression shifts in an instant. Her eyes narrow as they rake slowly down your body, taking in your bare chest, the light sheen of sweat, the obvious bulge in your boxers, and the faint glistening wetness around your mouth and chin. You can practically see the gears turning in her head.
You swallow hard again, throat suddenly dry.
You’ve been Sooyoung’s secret “stress relief” for months now. She calls you when she needs to unwind after long schedules, when she wants to dominate someone completely, when she needs a willing mouth and cock to use however she likes. And you’ve learned one very important rule: Sooyoung does not like to share her toys. You still remember the time a female trainee smiled at you for a little too long in the cafeteria. The next day that girl looked pale and avoided eye contact with anyone for a week. You could’ve sworn you saw Sooyoung follow her into the bathroom that afternoon.
Now Sooyoung’s sharp gaze lifts back to your face. She takes one step forward, the leather of her boots creaking softly, and her voice drops to a dangerously sweet tone.
“Tell me, boy…”
She leans in, eyes boring into yours.
“Is there someone else in your apartment right now?”
The question hangs in the air like a blade.
Behind you, in the bedroom, you hear the faint rustle of sheets. Seulgi shifting nervously on your bed, still completely naked.
Sooyoung heard it too and doesn’t wait for your answer. She places one hand on your chest and firmly pushes you backward into your own apartment, stepping inside after you. The heavy door clicks shut behind her with a finality that makes your stomach drop. Her boots thud softly against the floor as she walks past you, the long coat swaying around her legs.
You follow her nervously, heart hammering. You really hope she won’t be too rough on Seulgi. She’s still a senior idol, Red Velvet’s main dancer, someone Sooyoung has known for years. But deep down you know the truth. If Sooyoung is in one of her moods, the consequences will probably land on you instead. You’re the trainee. The toy. The one she can punish without hesitation.
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