Idol!𝑺𝒆𝒖𝒏𝒈𝒎𝒊𝒏 𝒙 Idol!𝒇! 𝒓𝒆𝒂𝒅𝒆𝒓 (𝑴𝑫𝑵𝑰)
Summary: Forced to keep your relationship hidden under strict industry rules, Seungmi’s jealousy reaches a breaking point that leads you getting fucked in the bathroom. (10,4k)
Warnings: unstabilised relationships, dirty talking, dom!seungmin, jealousy, possessive behaviour, f1ngering, oral s3x (f! receiver), wall fuck1ng, public area, unprotective s3x (DONT DO IT), marking/love bites, hard thrust1ng.
The bass from the live stage vibrated through the stadium floor, a constant hum under the screaming fans and booming MC introductions. You’re sat in the third row of the idol section, legs crossed, back straight, a practiced smile fixed on your face. The dress was a calculated risk: deep emerald, fabric clinging to every curve like it had been poured over your body, a slit up the thigh that showed a calculated amount of skin. You felt eyes on you from every direction. Cameras. Fans. Other idols.
Three rows back and to your left, Seungmin was losing his fucking mind.
He watched a rookie from a boy group two rows ahead turn around for the fifth time, pretending to scan the crowd but letting his gaze drag down your back like he had any right to look. Then a senior artist leaned over to whisper something to his groupmate, and his eyes flicked to your legs. Seungmin’s jaw clenched so hard his teeth ached. His hands were pressed flat against his thighs, knuckles white. You weren’t his in public. That was the rule. The contract. The career-ending, scandal-manufacturing, Dispatch-wet-dream rule. But you are his, and every stolen glance from these assholes felt like a challenge.
He pulled out his phone, angled it away from the nearest camera, and typed fast.
| Backstage. Main hall restroom. Now.
The backstage corridor was chaos: stylists running with garment bags, staff shouting into headsets, junior artists huddled in nervous circles. You navigated it with your head down, heels clicking on the polished concrete, until you reached the door at the far end of the hall. You pushed it open and stepped inside.
The lock clicked behind you before you even registered Seungmin’s presence. Then his hands were on you, spinning you around and shoving your back against the cold tile wall. The impact knocked a gasp from your lungs.
“Do you have any idea,” he said, voice low and rough, “what it was like sitting there watching every fucking guy in that stadium undress you with their eyes?”
Your lips parted, but he didn’t give you a chance to answer. His mouth crashed into yours, hard and demanding, tongue pushing past your teeth. One hand fisted in your hair, tilting the head back, while the other gripped your hip with bruising force. He bit your lower lip, pulled back just enough to look at your face and said, “This dress. This fucking dress. You wore it for me, didn’t you?”
“Maybe,” you breathed, and the smirk that flickered across your face was a dangerous thing.
Seungmin’s eyes darkened. “Wrong answer.”
His hands shoved the slit of your dress higher, exposing the lacy black thong underneath. He hooked his fingers into the waistband and yanked it down your thighs, not bothering to be gentle. The fabric caught on the heels, and he left it there, tangled around one ankle. Then his mouth was on you, tongue sliding through the folds, and your head cracked back against the tile. A moan tore out your throat, too loud for a public restroom, and Seungmin’s hand clamped over your mouth.
“Quiet,” he muttered against the clit, the vibration of his voice making your hips jerk. “You want someone to hear? Want them to know you’re getting fucked backstage while they’re out there staring at you?”
You shook your head, eyes squeezed shut, fingers threading into his hair and pulling. He ate you out like he was starving, tongue flicking and pressing and circling until your thighs were trembling against his shoulders. He shoved two fingers inside you without warning, curling them forward, and you bit down on your own hand to keep from screaming. The wet, obscene sound of his fingers pumping into you filled the small room.
“You’re so fucking wet,” he said, pulling his mouth away and looking up at you. His lips glistened. “Is this from them looking at you, or from me?”
“You,” you gasped. “Fuck, Seungmin, only you.”
He stood up, unzipping his trousers with one hand while the other wrapped around your throat. Not squeezing, just holding. A reminder. His dick sprang free, hard and flushed, and he lifted you easily, one arm hooked under the knee, pinning you against the wall. The head of his cock pressed against the entrance, and he paused there, making you feel it, making you wait.
You opened your eyes. His face was inches from yours, jaw tight, pupils blown wide with a jealousy that hadn’t cooled at all.
“You’re mine,” he said. “Not theirs. Say it.”
He thrust into you in one brutal stroke, and your vision went white at the edges. The stretch, the fullness, the way he filled you completely, it stole the air from your lungs. Seungmin didn’t give you time to adjust. He fucked into you with hard, punishing rhythm, his grip on your throat tightening just enough to make you lightheaded. The tile was cold against your back, his body hot against your front, and every snap of his hips drove a broken moan from your throat.
“You like this,” he grunted, mouth moving to the neck, sucking hard enough to leave marks. Love bites bloomed purple and red against your skin, right over your collarbone where the deep green emerald fabric dipped low. “You like making me lose my mind.”
“Yes,” you choked out, heels scraping against the slick tile as you tried to wrap both legs tighter around his waist. He adjusted his hold, hoisting you slightly higher to angle himself deeper, hitting that exact sensitive spot inside you that had her toes curling into the cold floor.
The sound of your bodies colliding rang loudly in the tight space, mixed with the muted, heavy thud of the stadium bass filtering through the thick concrete walls. Somewhere out there, tens of thousands of fans were screaming, oblivious to the fact that Stray Kids’ Seungmin had one hand wrapped around an idol's throat, pounding into her with a raw, feral possessiveness that defied every single rule of their industry.
“Look at the door,” Seungmin commanded, his voice dark, ragged, and breathless against your ear.
You forced your eyes open, gazing blurrily at the metallic lock on the single door standing between them and a career-ending scandal.
“Imagine if someone comes down this hall,” he whispered, his thumb pressing lightly against your pulse point while his hips never slowed, driving into you with relentless, deep strokes. “Imagine if your manager comes looking for you. They’re going to hear you whining like this. They’re going to know who took this dress off you.”
The thrill of it, the sheer danger mixed with his unyielding jealousy; sent a fresh shockwave of warmth straight to your core. Your walls clenched hard around him, drawing a low, guttural groan from deep in his chest.
“Fuck love...” His pace broke into frantic, shallow thrusts, his forehead coming down to rest against yours. His breath was hot, smelling faintly of mint and the exhaustion of the night, but his grip on your thigh was absolute iron. “Don't you dare come yet. Look at me.”
You locked eyes with him, completely wrecked, panting wildly as he built the friction to an unbearable heat. His free hand reached down, his thumb finding your clit and rubbing in fast, cruel circles over your slick folds.
That was the tipping point.
You bit hard into your own shoulder to muffle the shriek that tore through your chest as your orgasm hit like a freight train. Your body spasmed violently around him, milky ripples of heat washing over you, clamping tight onto his cock. Seungmin growled, throwing his head back as your contraction triggered his own release. He buried himself as deep as he could go, pulsing hot inside you, his whole body tense and trembling against yours as he held you pinned to the wall.
For a long moment, the only sound in the room was the harsh, ragged sound of heavy breathing and the distant rumble of the show outside.
Slowly, the reality of the situation rushed back into the room.
Seungmin slid out of you with a wet, quiet gasp, catching you carefully as your feet touched the cold ground. Your knees instantly buckled, but he caught you around the waist, pulling you flush against his chest so you wouldn't fall. The emerald dress was rumpled, the slit pushed up past your hip, and your hair was a messy halo around your face.
He looked down at the dark, blooming hickey on your collarbone, a violent contrast against the green silk; and a dark, satisfied glint returned to his eyes.
“You’re going to have a fun time covering that up before your next segment,” he murmured, though his touch was suddenly softer, his thumb gently wiping a stray tear of pleasure from the corner of your eye.
“You’re terrible,” you whispered, voice completely shot, resting your forehead against his chest as your breath slowly evened out.
“I’m possessive,” he corrected smoothly, pulling your thong up your legs with surprising care now that the storm had passed, fixing the dress, and smoothing down your hair with practiced, gentle fingers. He pulled a pack of wet wipes from his back pocket, cleaning you up before fixing his own trousers, zipping up, and adjusting his jacket until he looked once again like the polished, pristine idol the world knew.
He stepped back, surveying you. Despite the flushed cheeks and swollen lips, you looked breathtaking. Marked, taken, and entirely his.
Seungmin leaned in, pressing a soft, lingering kiss to your forehead, a stark contrast to the violence of moments before.
“Go back out there,” he whispered, a faint, dangerous smirk playing on his lips as he reached for the lock. “Let them look all they want. But remember who you’re going home with tonight.”
He slipped out the door first, blending seamlessly into the chaotic backstage crowd without a single person suspecting a thing. You took a deep breath, checked yourself in the mirror, pulled a few strands of hair over the fresh mark on your neck, and followed him back out into the light.
Author’s note: Heyy! I finally had the time to write another short shot after months of dropping my first one and disappearing lol. For being part of the taglist, pls write in the comments. Sending lots of lovee^^
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