Chapter 1: "The Awakening"

It was a slightly rainy summer day; the rain was pattering monotonously against the expansive, floor-to-ceiling windows of the JYP building. The city of Seoul outside was painted in a moody, silver-gray wash of precipitation, the distant, muffled sounds of traffic acting as a low hum against the glass. Nineteen-year-old Sullyoon, the shy visual of NMIXX, stepped softly into the main dance rehearsal room. Her heart was beating a frantic rhythm against her ribs, fluttering nervously beneath her small, A-cup chest.

She was dressed for comfort in a light, grayish-blue, loose-fitting sweatshirt-style pullover hoodie that draped over her petite frame, paired with dark gray, charcoal workout leggings that clung tightly to her slender legs. Twice had been dancing in this exact room just an hour earlier. The air was still thick and warm, deeply intoxicating, filled with a heady mixture of sweet, expensive floral perfumes, the lingering, musky scent of fresh exertion, and the faint, teasing aroma of melted vanilla candle wax coming from a decorative jar left near the sound system.

Sullyoon’s wide, brown deer eyes darted around the empty studio. Her mind was racing, plagued by the scandalous whispers she had heard from ITZY’s Lia. The rumor was absolutely insane, practically unbelievable: that every single member of the pristine, legendary group Twice was regularly fucking their European bodyguard and dance trainer, Y/N.

Y/N was infamous in the company. A thirty-year-old European giant standing at 188 centimeters and weighing 90 kilograms of pure, densely packed muscle. He had sharp brown eyes, perfectly styled short black hair, and was always clad in a fitted Adidas training suit that did nothing to hide his intimidating, alpha-male physique. In the dance room, he was a ruthless, strict tyrant who adhered rigidly to the rules, demanding absolute perfection. The idea that this uncompromising disciplinarian was secretly ravishing the nation’s top idols was a thought that made Sullyoon’s thighs involuntarily press together, a strange heat blooming in her core.

Lia had sworn there was a secret room. A hidden sanctuary right here in the studio.

Sullyoon approached the massive mirror wall, the one normally used by the idols to critique their every movement during grueling rehearsals. She trailed her delicate fingertips along the cool, pristine glass. Where could it be? she thought, sliding her hands lower, feeling the smooth texture against her skin. Suddenly, her palm pressed against a specific, barely noticeable indentation near the corner framing.

A soft, pneumatic hiss echoed in the quiet room. Sullyoon gasped, taking a step back.

A large section of the mirror wall smoothly popped outward, swinging open like a heavy door completely devoid of a handle. The warm, inviting air that rushed out of the hidden space hit her face like a physical caress. It smelled intensely of raw, unbridled sex—a potent cocktail of feminine wetness, rich masculine musk, sweat, and sweet massage oils.

Trembling, Sullyoon slipped inside the secret room, her breath catching in her throat as the mirror-door clicked softly shut behind her, leaving a tiny, imperceptible crack for her to peek through if needed.

The atmosphere in the secret room was entirely different from the sterile dance studio. It was an opulent, luxurious sanctuary. Golden candlelight flickered from sconces on the wall, weaving an intoxicating dance of light and shadow with the silver moonlight filtering through a small, frosted ventilation window. The room was meticulously climate-controlled, the temperature a perfectly balmy warmth that made skin crave touch.

In the center of the room sat a plush, deep velvet sofa positioned in front of a massive 52-inch TV, which was currently displaying a crackling, digital fireplace, adding to the flickering, fiery ambiance. Beyond the sofa was a massive, king-sized bed draped in expensive, dark crimson silk sheets. On the far wall, an entire shelf was dedicated to an array of high-end, silicone "toys," glowing softly in the dim light.

But what caught Sullyoon’s wide eyes the most was a huge, meticulously organized weekly schedule pinned to a corkboard, elaborately decorated with drawn hearts and dozens of explicit Polaroid pictures. She crept closer, reading the bold lettering.

MONDAY - Momo

TUESDAY - Sana

WEDNESDAY - Mina

THURSDAY - Nayeon

FRIDAY - Tzuyu

SATURDAY - Chaeyoung (morning), Jihyo (evening)

SUNDAY - Dahyun (morning), Jeongyeon (evening)

Beneath the names were Polaroids of each Twice member in various states of utter, blissful degradation. Sullyoon’s jaw dropped. There were pictures of the girls totally naked, wearing sexy, strappy underwear, their faces flushed, their mouths completely filled with thick, white cum, their perfect tits painted with Y/N’s seed, and their cunts glistening and stretched. It was a gallery of absolute, shameless devotion.

Before Sullyoon could process the sheer magnitude of her discovery, a sudden, breathy moan shattered the quiet.

"Oh... God... Y/N... fuck..."

Sullyoon froze, immediately ducking behind the heavy velvet sofa, peering through the small gap between the armrest and the wall.

At the far end of the room, pressed mercilessly against another mirrored wall, was Jihyo. The proud, authoritative, 27-year-old leader of Twice.

Jihyo’s usual immaculate styling was completely ruined. Her hair, usually styled half-up with loose strands framing her face and a high ponytail, was now a gorgeous, sweaty mess sticking to her flushed cheeks. Her attire was utterly destroyed. The oversized red hoodie-like jacket with the dark design was unzipped and forcefully shoved down her shoulders, pinning her arms. Her matching red sweatpants, bearing the word "TUSSY" in black lettering on the waistband, were pooled disgracefully around her ankles alongside her sneakers.

The cropped black sleeveless top she wore had been violently tugged to the side. One of her heavy, gorgeous D-cup breasts was completely hanging out, the large, dark nipple pebble-hard and glistening with saliva. The small red cross pendant she wore on a light-colored necklace swung wildly against her bare collarbone with every brutal impact.

Behind her stood Y/N, fully dominating the proud leader. His Adidas training jacket was discarded, revealing a tight black t-shirt that stretched over his bulging, muscular chest and thick arms. His track pants were pulled down just enough to free his massive, rigid, 18-centimeter cock, which was currently buried to the hilt inside Jihyo’s soaking wet pussy.

Sullyoon watched, mesmerized and horrified, as Y/N pulled his hips back, exposing the thick, glistening shaft before driving it forward with a loud, wet SLAP. The sound of flesh slapping against flesh echoed through the luxurious room, accompanied by Jihyo’s high-pitched, desperate squeals.

As Y/N’s thick cock pushed forward, it spread Jihyo's swollen, flushed labia apart like Moses parted the sea. She was so incredibly wet that the slick sounds of their friction sounded exactly like the crashing of an ocean wave, her copious juices dripping down the inside of her thighs and leaving wet, glossy streaks on the mirrored glass she was pinned against.

"Fuck, Y/N... yes! Don't stop... oh my god, I just can't get enough!" Jihyo moaned out loud, her breath fogging up the mirror in front of her face. "I can't get enough, even though you destroy me every single Saturday since Twice had our debut... Ah! Right there! Just like back then... in that dusty hospital old bed during the 'Like Ooh-Ahh' filming!"

Y/N let out a deep, rumbling chuckle that vibrated through the room. His large, calloused hand reached up, his thick fingers wrapping securely around Jihyo’s throat. He didn't squeeze hard enough to hurt her, just enough to restrict her airway slightly—choking her neck a little, exactly the way he knew she absolutely loved. Jihyo let out a breathy, stuttering gasp, her dark brown eyes rolling back in pure, unadulterated pleasure.

"Is that right, little leader?" Y/N teased, his voice dripping with dark, witty amusement and dominant authority. "Are you proud to be the leader of a nymph band? A group of perfectly trained, award-winning fucktoys for your strict bodyguard?"

Jihyo’s face was mashed against the cold glass, her heavy, exposed breast flattening beautifully against the mirror with every thrust. She whined eagerly, her hips snapping back to take more of his impressive length. "Yes! Mmh... yes, Sir! We are! We are all just your personal, desperate fuckholes! Oh God, stretch me!"

Sullyoon clamped a hand over her own mouth to stifle a shocked gasp. The proud, proper leader of Twice was begging like a rabid animal in heat.

Y/N’s eyes darkened with raw lust. He grabbed both of Jihyo’s hands, pulling them firmly behind her back with one massive hand, completely incapacitating her. With his other hand on her hip, he began to thrust his 18-centimeter cock deeper and faster into her slick, thoroughly wrecked pussy.

SLAP! SLAP! SLAP!

The rhythm was relentless, a hard, deep, rhythmic fucking that left absolutely no room for mercy. With every brutal thrust, fresh waves of sweet, viscous juices ran out of Jihyo’s overstimulated cunt, splashing onto Y/N’s thighs. Her body was completely limp, surrendered to the pleasure. She was left literally hanging in his grip—she could only stand on her trembling legs because her flushed face and heavy tits were pressed so hard against the unyielding mirror by the sheer, brute force of Y/N’s thrusts from behind.

"Take it, Jihyo. Take every inch of your trainer," Y/N commanded breathlessly, his hips snapping like a whip.

"I'm taking it! Ah! I'm yours... purely yours!" she screamed, her body convulsing as the intense, all-consuming lovemaking pushed her to the edge of the precipice.

The tension in the room was thick enough to cut with a knife. The scent of their arousal was pungent and overwhelming. Sullyoon could actually smell the metallic tang of sweat mixing with the musky, heavy scent of female arousal and male testosterone. Jihyo was trembling violently, her muscles spasming in exquisite agony as the first powerful wave of ecstasy crashed over her. She let out a long, shuddering, throat-tearing climax, her inner walls clamping down mercilessly around Y/N’s thick shaft, milking him with every involuntary contraction.

Y/N groaned, a deep, guttural sound of immense satisfaction. He let her ride out her massive orgasm, continuing to pound into her violently twitching, flooding core for a few more excruciatingly pleasurable seconds.

Jihyo loved the taste and feel of Y/N more than breathing. When she was more than finished, completely spent and dripping a puddle onto the floor, Y/N’s glossy, saliva-and-juice-coated cock slipped out of her dripping pussy with a loud, wet pop.

Instantly, the dynamic shifted. Jihyo didn't hesitate. Even though her legs were like jelly and she was panting heavily, her chest heaving, she slowly turned around. She sank completely onto her bare knees on the soft, luxurious carpet, surrounded by her discarded red "TUSSY" sweatpants. She looked up at him pleadingly, her dark brown eyes wide, glassy, and full of immense, hungry anticipation.

Sullyoon watched, her own heart hammering against her ribs, as Jihyo reached out with delicate, trembling hands. She guided Y/N’s thick, throbbing, 18-centimeter shaft toward her face.

This was the part of her Saturday evening she lived for.

Jihyo opened her mouth, her plush, pink lips parting to reveal her warm, wet tongue. She leaned forward and took the very tip of his cock into her mouth, letting out a soft, muffled hum of utter delight. The intense, passionate blowjob scene that unfolded before Sullyoon’s hidden eyes was exquisitely detailed and agonizingly slow. Jihyo worshipped him. She began with sensual lip-to-body worship, pressing soft, agonizingly tender kisses along the thick, bulging veins of his shaft, breathing her hot breath against his feverish skin.

She licked a long, wet stripe from the base all the way up to the slit, swirling her tongue expertly over the sensitive head, tasting her own musky juices mixed with his salty pre-cum. Y/N hissed, his hands coming down to tangle in her messy, half-up hair, guiding her rhythm.

"Good girl. Suck it. Show me why you're the leader," he whispered, a smirk playing on his lips despite the heavy, intoxicating tension gripping his body.

Jihyo obliged with fervent zeal. She rhythmically took Y/N’s thick cock deep into her mouth, her lips wrapping tightly around the girth, creating a perfect, wet vacuum. Her head bobbed back and forth, her cheeks hollowing out as she sucked with unbelievable power and devotion. Her tongue curled and swirled around the shaft inside her warm, slick mouth, providing deep, relentless oral stimulation.

While her mouth worked miracles, her hands were not idle. With one hand, she lovingly and gently massaged his heavy, swollen balls, kneading the sensitive skin with expert precision. With her other hand, she stroked the thick base of his 18-centimeter shaft, matching the exact rhythm of her bobbing head, making sure not a single millimeter of his flesh went unloved.

The sounds filling the luxurious, dimly lit room were purely obscene—thick, wet slurping, the quiet smacking of her lips, her muffled, desperate moans of pleasure around his massive size, and Y/N’s ragged, heavy breathing.

Y/N looked down at her, his expression a mix of strict dominance and raw, primal need. He reached out with his large, calloused hand, capturing her single exposed, heavy D-cup breast. He began to knead the soft flesh relentlessly, pinching the dark red nipple, pulling a muffled squeal from Jihyo’s occupied mouth. The combination of her deep-throating his cock and having her breast roughly handled was pushing her into another state of euphoric bliss.

Suddenly, Y/N’s hips locked. His muscles tensed so hard they looked carved from granite. "Fuck... Jihyo... I'm close. Drink it all."

Jihyo’s eyes widened with pure joy. She felt it coming; the unmistakable pulsing at the base of his shaft. She moaned enthusiastically around his cock, her throat opening wide, completely ready to serve.

Y/N let out a roaring groan, his hips thrusting forward, burying his cock as deep into the back of her throat as humanly possible. And then, the dam broke. He erupted with devastating force.

Jihyo let his boiling hot, thick cum fill her mouth with absolute relish. Wave after powerful wave of his heavy seed painted her tongue, filled her cheeks, and cascaded down the back of her throat. After Y/N, still holding her firmly on her knees, had completely filled her mouth with his copious, creamy load, he slowly pulled his softening cock out, leaving a thick string of white saliva connecting them.

Jihyo looked up at him, her lips glistening, her cheeks puffed out slightly with his cum. She wanted to show him exactly how good she was. With a slow, deliberate gulp, keeping unbroken eye contact with her strict trainer, she swallowed the massive load all in one go. She opened her mouth wide, sticking out her tongue to show him she hadn't wasted a single drop.

"Good girl," Y/N praised softly, continuing to relish kneading her exposed, flushed breast, dragging his thumb over the hardened peak.

Jihyo panted, wiping a stray drop of white from her chin. She looked up at him, her dark brown eyes softening into a pleading, submissive gaze. She stayed right there on her knees, her hands still resting gently on his thighs.

"Y/N... Sir..." Jihyo began, her voice a soft, breathless whisper, completely dropping her proud idol persona. "Please... make an exception for me. Let me come back tomorrow."

Y/N arched a dark eyebrow, his hands resting on his hips as he looked down at the kneeling superstar. "Tomorrow? You know the schedule, Jihyo."

"I know, I know!" she begged, her voice taking on a desperate, whiny tone that Sullyoon had never, ever heard from the confident leader. "But please... fuck me again tomorrow. I'm such a sweet and great fuckhole for you, aren't I? I do everything you ask! And... I'm under so much stress as the leader right now. The upcoming Twice world tour is killing my nerves. I need my bodyguard to relieve my stress."

Y/N smirked, looking genuinely amused by her pathetic, adorable pleading. He was strict, but he wasn't without a sense of humor. "You want me to risk the wrath of the other eight members because the 'great leader' needs a double dose of stress relief?"

"Yes!" Jihyo nodded frantically.

Y/N shook his head slowly, his tone firm and uncompromising, though a playful glint danced in his brown eyes. "I am a fair man, Jihyo. I adhere to the rules of the dance room, and I adhere to the rules of this bed. Saturday morning is Chaeyoung's turn. Saturday evening is yours. Tomorrow is Sunday. That means morning is Dahyun's turn, and evening is Jeongyeon's."

Jihyo pouted, her heavy breast bouncing slightly as she shifted on her knees. She was desperate. She wanted him again. The addiction was too deep. She suddenly bit her lower lip, a wicked, extremely daring glint appearing in her dark eyes.

"What if..." Jihyo whispered, her voice dropping an octave, completely dripping with seduction. "What if I offer you something new? If you make an exception for me tomorrow... I'll let you fuck my ass. Hard. For the first time."

Sullyoon’s eyes widened to the size of saucers behind the sofa. Her ass?!

Y/N froze. The room went completely silent save for the crackling of the digital fireplace. He looked down at Jihyo, his eyes tracing the beautiful, flush curves of her body, lingering on her wide, inviting hips. He looked thoughtfully into her eyes.

"Stand up," he commanded softly.

Jihyo’s face lit up with a victorious smile. She thought she had him now. She eagerly scrambled to her feet, the TUSSY sweatpants pooling at her ankles making her stumble slightly. She turned around, presenting her back to him, bending over slightly to showcase her perfectly round, pert bottom.

Y/N stepped closer. The heat radiating off his large body washed over her. He reached out, his large hands resting on the soft curves of her butt. Slowly, deliberately, he spread her ass cheeks apart, exposing the tight, untouched, pink little pucker to the cool air of the room and the flickering candlelight.

Jihyo shivered, a soft, anticipatory moan escaping her lips. "It's all yours, Y/N... just say yes."

Y/N stared deeply at the pristine, forbidden entrance. He traced a single, teasing finger over the tight ring, making Jihyo gasp loudly and arch her back, completely ready to be taken. Sullyoon held her breath, her own hands instinctively drifting down toward her dark gray leggings, a painful, throbbing ache settling deep in her small, untouched core.

Y/N stood there for a long moment. Then, with a heavy sigh, he released her ass cheeks, giving her left cheek a sharp, loud SMACK that echoed in the room.

"Ouch! Hey!" Jihyo yelped, standing up straight and rubbing her stinging cheek, looking over her shoulder with a betrayed pout.

Y/N chuckled, crossing his massive arms over his chest. "It is incredibly tempting, Jihyo. Truly. But I stay true to my principles. All my fuck toys are treated equally. Even though I would very much like to furiously fuck your tight little asshole... you will have to wait until next Saturday to offer it to me."

Jihyo let out an exaggerated, dramatic groan, turning around and stomping her foot like a spoiled child, though the lust still burned bright in her eyes. "You are so infuriatingly strict, Y/N! You're a tyrant!"

"I am your trainer. And right now, your training session is over. Clean yourself up, Leader," Y/N replied smoothly, a smirk playing on his handsome face as he turned to walk toward the adjoining private bathroom, leaving Jihyo to pout in her ruined clothes.

Sullyoon was completely and utterly paralyzed by shock. Her entire worldview had just been shattered. The prude, responsible, motherly leader of Twice—the woman who scolded the younger idols for wearing skirts that were too short—was nothing more than a desperate, cum-hungry slut for their European bodyguard. And the craziest part? Sullyoon wasn't disgusted.

She was incredibly, overwhelmingly jealous.

Realizing the session was over and Y/N might return at any second, Sullyoon quietly and frantically crawled backward. She reached the barely open mirror door, slipping out into the cool, silent expanse of the main dance room. The hidden door hissed shut behind her, perfectly sealing away the smells, the heat, and the scandalous secrets of the greatest girl group in the nation.

Sullyoon didn't stay to process it. She practically sprinted out of the JYP building, braving the slight summer rain as she rushed back to the NMIXX dormitories.

When she finally reached her own dark, quiet bedroom, she locked the door behind her. The sound of the rain lashing against her window matched the frantic beating of her heart. She didn't even bother turning on the lights. She fell back onto her bed, her grayish-blue hoodie feeling entirely too hot, her tight dark gray leggings suffocating her.

Her mind was a chaotic whirlwind of high-definition images. Y/N’s massive, veiny 18-centimeter cock. The way it parted Jihyo’s wet lips. The wet, slapping sounds. The sight of Jihyo’s heavy breast being violently kneaded.

Sullyoon shoved her hands down the front of her tight leggings, bypassing her cotton underwear completely. She gasped loudly into the empty room as her trembling fingers met her own soaking wet folds. She had never been this wet in her entire nineteen years of life.

She squeezed her eyes shut, and suddenly, she wasn't in her bed anymore. In her mind, she was in that luxurious, candlelit sanctuary. She was pinned against the cold, hard mirror. It wasn't Jihyo’s D-cups pressing against the glass, but her own sensitive, small A-cup tits. It was Y/N behind her, his large, muscular hands gripping her narrow hips, his thick European cock spreading her wide open.

"Ah! Y/N... yes... please!" Sullyoon whimpered out loud into the darkness of her room, her fingers working furiously against her swollen clitoris. She began to pump two fingers deep inside her tight, inexperienced opening, trying to mimic the brutal, relentless pace Y/N had used on Jihyo.

She imagined the smell of his cologne, the taste of his salty skin, the heavy, dominant weight of his body pressing her down. She imagined sinking to her knees, taking his massive shaft past her lips, choking on his size, eager to swallow his hot, thick seed.

"Make me yours... make me your toy too!" she cried out softly, her back arching off the mattress.

The tension in her body built to a fever pitch. The slow, torturous development of her arousal over the past hour finally reached its breaking point. Sullyoon cried out, her small body shuddering violently as multiple, powerful waves of ecstasy crashed through her nervous system. It was an all-consuming, shuddering climax, a deeply satisfying release that left her gasping for air, her fingers slick with her own copious juices, her thighs trembling uncontrollably against the bedsheets.

She lay there for a long time, the rhythmic patter of the rain outside acting as a soothing lullaby to her racing heart. She came down from her high slowly, but as the physical pleasure faded, a dark, daring resolution began to take root in her chest.

She couldn't just pretend she hadn't seen it. She couldn't just go back to being the shy, innocent visual of NMIXX while the women upstairs were living in absolute carnal paradise.

The next morning, the rain had cleared, leaving a crisp, bright summer morning in its wake. Sullyoon stepped out of the warm, steamy shower, her skin flushed pink, her long dark hair wrapped in a towel. She walked over to her vanity mirror, looking at her slender, petite reflection. Small breasts, flat stomach, wide, innocent deer eyes.

She picked up the vintage Polaroid camera she kept on her desk for aesthetic dorm photos. Taking a deep breath to steady her suddenly trembling hands, she let the towel drop to the floor. She was completely nude.

Grabbing a thick black marker from her desk, she carefully, beautifully wrote a message across her pale, flat stomach, the bold, dark ink standing out sharply against her flawless skin.

She turned to the camera, framing herself perfectly to capture her bare, perky small breasts, her nervous but determined face, and the desperate, scandalous message written across her torso.

Click. Flash.

The camera whirred, spitting out the square piece of film. Sullyoon waited patiently, fanning the picture until the image developed. It was perfect. She looked vulnerable, beautiful, and completely ready to be ruined. She capped the marker and looked at the bold text she had written on her own body in the photo.

“I want to be a cockslut for Y/N, too.”

An hour later, dressed in her usual oversized practice clothes, Sullyoon snuck back into the JYP rehearsal studio. The room was empty. She went straight to the mirror, pressing the hidden mechanism. The pneumatic hiss sounded, the door swung open, and she stepped briefly into the warm, vanilla-scented sanctuary.

Her heart in her throat, she walked straight to the massive weekly schedule on the corkboard. Between the explicit pictures of Nayeon being bent over a chair and Tzuyu with a face completely covered in Y/N’s cum, Sullyoon picked up a red push-pin.

With a definitive, shaking thrust, she pinned her naked Polaroid right onto the board.

She didn't know what Y/N would do when he found it. She didn't know if he would punish her, reject her, or finally invite her into his schedule. But as she slipped out of the secret room and the mirror closed seamlessly behind her, Sullyoon smiled. The shy girl was gone; the awakening had begun.

[End of Chapter 1]