The Best Gym Day Ever : Ahyeon & Asa

The day after BABYMONSTER’s latest gym collab video dropped on Kim Jong-kook’s channel. The Choom mini-album was dropping in two weeks, the world tour kicking off in Seoul on June 26, and the girls were grinding harder than ever. YG had arranged a private “YGYM” session at Jong-kook’s flagship gym in Seoul—bright lights, mirrored walls, the faint smell of rubber mats and protein shakes in the air. Only Ahyeon and Asa had shown up today; the rest of the members were in vocal or dance rehearsals across town. One trainer. One empty gym after hours. Perfect conditions for something that started as work… and ended as anything but.

Ahyeon stepped onto the cable machine first, wearing the exact white long-sleeve crop top from the video—soft fabric hugging her perky chest, cut-outs at the ribs flashing smooth skin every time she moved. Low-rise grey leggings sat just below her sharp hip bones, the faint outline of her abs already visible under the gym lights. Her long dark hair was pulled into a messy ponytail, a few strands sticking to her flushed cheeks. She gripped the handles, back straight, and flashed that signature humble smile.

“Trainer-nim, is the weight okay? I don’t want to look weak in front of Asa-unnie,” she said, voice bright and playful even though her arms were already trembling on the first rep. Classic Ahyeon—always positive, always pushing herself while pretending she wasn’t dying inside.

Asa, two machines over, was already in a deep squat set. She wore the black zip-up long-sleeve top and matching high-waisted shorts with white stripes, the fabric stretched tight over her toned thighs and round ass. Her short black bob was slightly damp with sweat, and she had that focused, cool-rapper expression until she caught Ahyeon’s eye and broke into a teasing grin.

“Unnie? I’m literally older by a month, Ahyeon-ah,” Asa shot back, voice light and mischievous as she lowered into another perfect squat, glutes flexing. “But yeah, Jongkook-oppa, make sure she doesn’t cheat on form. She always tries to rush the last reps.”

Kim Jong-kook—built like a tank, wearing a simple white graphic tee that strained over his chest and grey shorts—chuckled deeply, arms crossed as he circled them. At 49 he still looked like he could bench a car, but his voice was warm, mentor-like, the same tone from yesterday’s filmed session.

“You two are already stronger than half the idols who come in here,” he said, stepping behind Ahyeon first. His large hands settled lightly on her shoulder blades, correcting her posture. “Elbows in, Ahyeon. Pull with your back, not your arms. Feel that?” His fingers pressed gently into the muscle, guiding her through the row. The contact was professional… at first.

Ahyeon bit her lip, letting out a soft exhale that sounded a little too breathy. “Y-yes, oppa… like that?” She pulled the cable back, shoulder blades squeezing, and the cut-out on her top rode up, exposing the side of her breast and the smooth dip of her waist.

Jong-kook’s voice dropped a fraction. “Good girl. Ten more.”

Asa watched from her squat rack, eyes narrowing playfully. She finished her set, stood, and wiped sweat from her collarbone with the hem of her top, flashing a strip of toned stomach. “Ahyeon’s abs are already showing again,” she teased, walking over. “Jongkook-oppa, you saw the video comments? Everyone’s obsessed with her waist. Should we make it even smaller?”

Jong-kook laughed, but his gaze lingered on Asa’s legs as she demonstrated a lunge. “Focus on form first, Asa-ya. Knees out, chest up.” He moved behind her, one hand on her hip to adjust her stance, the other lightly on her lower back. The gym was quiet now—staff had left after the official shoot wrapped. Just the three of them, the hum of machines, and the growing tension in the air.

Ahyeon finished her set and stepped off, chest rising and falling. “Oppa, my shoulders are burning… but in a good way.” She stretched her arms overhead, the white fabric pulling tight across her chest, nipples faintly visible through the thin material. “Can you check my form on the next one? I want it perfect for the Choom choreo.”

Asa smirked, stepping closer. “Same. My glutes feel tight from all the squats yesterday. Maybe oppa can… stretch me out properly?”

The shift was subtle at first. Jong-kook’s hands stayed on them longer than necessary. When Ahyeon got back on the machine, he stood directly behind her, his chest brushing her back as he guided her arms. She could feel the heat of him, the hard line of his body.

“Like this?” Ahyeon whispered, voice sweeter now, almost shy—the same humble tone she used when she was nervous but determined.

“Exactly like that,” he murmured, breath warm against her ear. His hand slid down her side, thumb tracing the cut-out edge of her top, grazing bare skin. “You’re so tight here… muscles are firing perfectly.”

Asa had abandoned her own set. She leaned against the machine beside them, watching with dark, playful eyes. “Ahyeon-ah, you’re blushing. Is it the workout… or oppa’s hands?”

Ahyeon let out a small, embarrassed laugh, but her hips pushed back slightly into Jong-kook. “Unnie… don’t say it like that. It’s just hot in here.”

Jong-kook’s voice was lower now, the professional trainer tone slipping into something rougher. “Gym’s empty. No cameras. No staff. You two have been teasing me the whole session—those outfits, those little sounds you make on every rep…”

Asa stepped in front of Ahyeon, close enough that their bodies almost touched. “We weren’t teasing, oppa,” she said, tilting her head, that ENFP spark lighting up her eyes. “But if you want us to… we can make it a real private session. Recovery, right? You always say the best gains happen after the workout.”

Ahyeon’s breath hitched. She was the responsible one, the positive one, but right now her cheeks were flushed and her thighs pressed together. “Asa-unnie… are we really—?”

Asa leaned in and kissed her first—soft, teasing, the way she always played around in dorms but never this heated. Ahyeon melted instantly, letting out a surprised little moan against Asa’s lips. Jong-kook watched for half a second before his hands moved.

One big palm cupped Ahyeon’s breast through the white fabric, thumb circling her nipple until it hardened. The other hand slid down Asa’s back, gripping her ass as she deepened the kiss with Ahyeon.

“Fuck,” Jong-kook growled. “You two are going to kill me.”

He pulled them both toward the padded stretching area in the corner—mats on the floor, mirrors everywhere so they could see every angle. Ahyeon’s back hit the mat first, legs parting instinctively as Jong-kook knelt between them. Asa straddled Ahyeon’s thigh, grinding slowly while she tugged Ahyeon’s top up, exposing her perky breasts.

“Trainer-nim… oppa…” Ahyeon whimpered, the honorific slipping into something filthy as Jong-kook’s mouth closed around one nipple, sucking hard. His free hand pushed her leggings down, fingers finding her already soaked through her panties. “Ah—! It feels so good…”

Asa laughed breathlessly, that playful crackhead energy turning pure lust. “Look at you, Ahyeon-ah, dripping for oppa already.” She yanked her own black top off, small but perky tits bouncing free, then leaned down to kiss Ahyeon again while Jong-kook peeled the rest of their clothes away.

He was rock hard in his shorts. Ahyeon’s hand reached out shyly at first, then bolder, wrapping around his thick length through the fabric. “Oppa… it’s so big,” she whispered, eyes wide and honest, the same humble awe she had when she nailed a high note.

Jong-kook groaned. “You want it, baby? Both of you?”

Asa answered for them, shoving her shorts and panties down in one motion, revealing her smooth, toned pussy. “We’ve been wet since you started touching us on the machines.” She positioned herself over Ahyeon’s face. “Eat unnie while oppa fucks you, Ahyeon-ah. Be a good girl.”

Ahyeon moaned loudly as Asa lowered onto her tongue. Her hips bucked up the second Jong-kook pushed inside her—slow at first, stretching her tight walls. “F-fuck—oppa—! So deep—!” she cried out, voice muffled against Asa’s clit.

Jong-kook thrust harder, one hand on Ahyeon’s hip, the other reaching up to pinch Asa’s nipple. The mirrors reflected everything: Ahyeon’s body arching, abs flexing with every thrust, Asa riding her face with rolling hips, sweat glistening on all three of them.

“Shit, you’re so tight,” Jong-kook grunted, pounding into Ahyeon faster. “Taking oppa’s cock like you were made for it.”

Asa’s moans were higher, playful even in pleasure. “Ahyeon’s tongue is so good—ah, fuck, right there—! You’re gonna make unnie cum already.” She ground down harder, fingers in Ahyeon’s hair.

Ahyeon came first—legs shaking, walls clenching around Jong-kook as she screamed into Asa’s pussy. The vibration sent Asa over the edge next, thighs trembling as she rode out her orgasm with a sharp, teasing cry: “Yes—oppa—Ahyeon—fuck—!”

Jong-kook pulled out, flipping them so Asa was on all fours beside Ahyeon. He slammed back into Asa from behind while Ahyeon crawled underneath, licking where they joined, tongue flicking over Asa’s clit and Jong-kook’s balls.

“Fuck—both of you—gonna fill you up,” he growled.

Asa looked back over her shoulder, eyes sparkling with mischief even as she moaned. “Cum inside, oppa. Mark your idols.”

Ahyeon whimpered in agreement, fingers rubbing her own clit as she watched. “Please, oppa… we want it.”

He came hard, burying himself deep in Asa with a guttural groan, thick ropes filling her until it leaked out onto Ahyeon’s waiting tongue. Ahyeon licked every drop, then pulled Asa down into a messy, cum-swapping kiss while Jong-kook watched, chest heaving.

They collapsed in a tangle on the mats—Ahyeon curled against Jong-kook’s chest, positive little smile back on her face even as cum dripped down her thighs. “That was… the best recovery session ever,” she whispered, giggling.

Asa, ever the playful one, traced circles on Ahyeon’s abs. “We should do this after every workout. Oppa, you free tomorrow?”

Jong-kook laughed, pulling them both closer, already half-hard again. “For my favorite monsters? Anytime.”

The gym lights in Jong-kook’s flagship Seoul studio had dimmed to a soft amber glow by 9:47 PM on April 17, 2026. The official Choom collab filming had wrapped hours earlier, but Ahyeon had asked to stay behind for “extra core work.” BABYMONSTER’s main vocalist, center, and visual never half-assed anything—especially not two weeks before their third mini-album dropped and the world tour rehearsals kicked into overdrive. Asa had lingered too, claiming she needed to fix her squat form, but the teasing glint in her eyes said otherwise. Kim Jong-kook, still in his white graphic tee and grey shorts, had simply nodded and locked the doors after the last staff member left. One trainer. Two idols. An empty gym that smelled of sweat, rubber, and the faint citrus of protein shakes.

Ahyeon was already back on the cable machine, exactly like in the video that had broken the internet that morning. The white long-sleeve crop top clung to her damp skin, the strategic cut-outs at her ribs flashing smooth, flushed sides every time she pulled. Her low-rise grey leggings sat dangerously low on her sharp hip bones, the faint lines of her abs catching the light as she braced her core. Long dark hair, now loose from its ponytail, stuck to her neck and collarbones. She gripped the handles, elbows tight, and exhaled through her nose—humble, focused, the same responsible expression she wore during evaluations.

“Trainer-nim… oppa,” she said softly, voice bright but a little strained from the burn, “is the weight still good? I don’t want to rush and mess up my posture again. I need it perfect for the Choom choreo.” Her cheeks were already pink from the earlier sets, but she smiled that positive, no-regrets smile, the one that made fans call her the heart of BABYMONSTER.

Jong-kook stepped behind her, his broad chest brushing her back as he checked the pin. “You’re doing great, Ahyeon-ah. But keep your shoulders down—don’t shrug.” His large hands settled on her shoulder blades, thumbs pressing gently into the muscle. The touch was still professional, but his fingers lingered a second longer than necessary, tracing the edge of the cut-out fabric where her skin was hot and slick. “Feel that? Pull with your lats, not your traps. Good girl.”

Ahyeon’s breath hitched, a tiny sound escaping her lips. “Y-yes, oppa… like this?” She pulled the cables back slowly, shoulder blades squeezing together, and the motion made her chest push forward. The thin white material stretched tight over her perky breasts, nipples already pebbled from the cool air and the growing heat between her thighs. She could feel Jong-kook’s body heat against her back, the hard line of his chest, the faint outline of his cock starting to press against her ass through his shorts.

Asa watched from the squat rack two meters away, black zip-up top half-unzipped to show the sports bra underneath, matching shorts riding up her toned thighs. She lowered into another perfect squat, glutes flexing, then rose with a playful smirk. “Ahyeon-ah, you’re blushing again. Is it the reps… or oppa’s hands on you?” Her voice was light, teasing—the ENFP crackhead energy she always brought to dorm chaos—but her eyes were dark, locked on the way Jong-kook’s fingers had slipped lower, thumb now brushing the bare skin just above Ahyeon’s waistband.

Ahyeon let out a soft, embarrassed laugh, but her hips pushed back instinctively, grinding lightly against Jong-kook. “Unnie… don’t tease me right now. It’s just… hot in here after all the sets.” Her voice was still humble, still the responsible one trying to stay focused, but the way her thighs pressed together betrayed her.

Jong-kook’s voice dropped, rougher now. “Gym’s empty, Ahyeon-ah. No cameras. No one’s coming back.” His right hand slid down her side, palm flat against her exposed midriff, fingers splaying over the faint ridges of her abs. “You’ve been working this core so hard… feels tight. You want oppa to help with recovery?”

Ahyeon’s next pull on the cables came out shaky. “O-oppa… what do you mean by recovery?” But she didn’t pull away. Instead, she arched her back a little more, pressing her ass fully against the growing bulge in his shorts. A tiny whimper slipped out—quiet, almost shy, exactly like the humble tone she used when she nailed a high note but still worried it wasn’t perfect.

Asa abandoned her squats completely. She walked over, hips swaying, and stopped right in front of Ahyeon. “Recovery means letting oppa stretch you properly, Ahyeon-ah.” She leaned in, voice low and mischievous, and kissed Ahyeon slow and deep—tongue sliding in like she was tasting the salt on her lips. Ahyeon moaned into it, a soft, needy sound that vibrated against Asa’s mouth. “Mmm… unnie…”

Jong-kook didn’t wait. His hand pushed under the hem of Ahyeon’s crop top, cupping one breast fully, thumb circling the stiff nipple through the fabric until she gasped. “Fuck, Ahyeon-ah… these tits have been teasing me since the first set.” He pinched lightly, rolling the peak between his fingers, and Ahyeon’s knees buckled a little.

“Ah—! Oppa… that feels… ahh…” Her voice cracked into a breathy moan as he tugged the top up and over her breasts, exposing them completely under the gym lights. They were perky, perfectly rounded, nipples dark pink and begging. Jong-kook bent his head and sucked one into his mouth, tongue flicking hard while his other hand shoved her leggings and panties down in one smooth motion. Cool air hit her soaked pussy and she shivered.

Asa pulled back from the kiss, lips shiny, and dropped to her knees in front of Ahyeon. “Look at you, dripping already. Such a good girl for oppa.” She spread Ahyeon’s thighs wider, then licked a long, slow stripe up her slit, tongue flicking over her swollen clit. Ahyeon’s head fell back against Jong-kook’s shoulder with a loud cry.

“Unnie—! Fuck—! Asa-unnie, your tongue—ahh!” Her hips jerked forward, chasing Asa’s mouth, but Jong-kook’s strong arm around her waist held her steady. He freed his cock from his shorts—thick, heavy, already leaking—and rubbed the head against her entrance from behind.

“You ready, baby?” he growled against her ear. “Gonna fuck this tight little idol pussy while your unnie eats you out.”

Ahyeon nodded frantically, positive attitude crumbling into pure need. “Yes—oppa—please—! I want it so bad… fill me up—ahh!” The last word turned into a broken moan as Jong-kook pushed in—slow at first, stretching her walls inch by inch until he bottomed out with a deep grunt. “F-fuck—! Oppa’s so big… it’s splitting me open—!”

Asa moaned against her clit, the vibration making Ahyeon’s thighs shake. “Tastes so sweet, Ahyeon-ah… keep making those pretty sounds for us.” She sucked harder, two fingers sliding into Ahyeon alongside Jong-kook’s cock, curling to hit that spot that made the younger girl see stars.

Jong-kook started thrusting—deep, powerful strokes that made Ahyeon’s abs flex and her breasts bounce with every snap of his hips. The mirrors on every wall reflected it all: Ahyeon’s flushed face, mouth open in a constant stream of moans and whimpers; Asa on her knees, lips and chin shiny with slick; Jong-kook’s muscular body driving into her from behind, one hand gripping her hip, the other reaching around to rub her clit in tight circles.

“Shit—Ahyeon—you’re clenching so fucking tight,” Jong-kook groaned, pounding harder. “This pussy was made for oppa’s cock. Taking every inch like a good little monster.”

Ahyeon’s voice was wrecked, the humble positivity gone, replaced by raw, needy cries. “Oppa—! Harder—! Fuck me harder—! I’m gonna—ahh—! I’m gonna cum—!” Her walls fluttered, then clamped down as the orgasm hit her like a wave. She squirted a little, soaking Asa’s tongue and Jong-kook’s thighs, legs trembling so hard she would have fallen if he wasn’t holding her up. “C-cumming—! Oppa—unnie—fuck—!”

Asa pulled back with a wet pop, lips glistening. “Good girl, Ahyeon-ah… now it’s my turn to watch oppa wreck you.” She stood, shedding the rest of her black outfit, and guided Ahyeon down onto the padded stretching mats on all fours. Jong-kook followed, never pulling out, and slammed back in from behind in one brutal thrust.

“Ahyeon—! Take it—take oppa’s cock—!” He fucked her faster, the sound of skin slapping echoing through the empty gym. Ahyeon’s face was pressed to the mat, ass up, back arched perfectly—exactly like the core-focused poses she’d practiced all day. Her long hair spilled across the floor, and every thrust pushed a fresh moan out of her.

“Unnie—watch—watch oppa fuck me—! It’s so deep—! I can feel him in my stomach—ahh—!” Asa knelt in front of her, spreading her own legs and pulling Ahyeon’s face into her pussy. Ahyeon licked eagerly, tongue fucking into Asa while Jong-kook railed her from behind.

“Fuck—yes—eat unnie’s pussy while you get wrecked,” Asa panted, hips rolling against Ahyeon’s mouth, fingers tangled in her hair. “You’re so good at this, Ahyeon-ah… such a perfect little slut for us.”

Jong-kook reached around and rubbed Ahyeon’s clit again, fast and rough. “Cum again, baby. Cum on oppa’s cock while you make your unnie cum on your tongue.”

Ahyeon screamed into Asa’s pussy as her second orgasm ripped through her, body shaking violently. Asa followed seconds later, thighs clamping around Ahyeon’s head with a sharp, teasing cry: “Ah—! Ahyeon—! Fuck—unnie’s cumming—!”

Jong-kook pulled out, flipped Ahyeon onto her back, and pushed her knees to her chest. He slid back inside in one smooth thrust, folding her in half. “Gonna fill you up, Ahyeon-ah. Gonna pump this tight idol cunt full of oppa’s cum.”

Ahyeon’s eyes were glassy, positive little smile flickering back even through the overstimulation. “Yes—oppa—please—cum inside me—! Breed me—! I want it—ahh—!” She reached up, pulling Asa down into a messy kiss, tongues sliding together while Jong-kook fucked her senseless.

He came with a deep, guttural groan, burying himself to the hilt and flooding her pussy with thick, hot ropes. Ahyeon moaned into Asa’s mouth as she felt it—warm, overflowing, dripping out around his cock onto the mat. “O-oppa… so much… it’s leaking everywhere—!”

Asa broke the kiss and crawled down, licking up every drop that spilled from Ahyeon’s stretched hole, then sharing it in another cum-swapping kiss with the younger girl. Ahyeon whimpered softly, body twitching with aftershocks, abs still faintly flexing under the gym lights.

Jong-kook collapsed beside them, pulling both idols against his chest. Ahyeon curled into him like she always did after a hard practice—humble, grateful, already smiling that bright, no-regrets smile even with cum still leaking down her thighs. “That was… the best recovery ever, oppa,” she whispered, voice hoarse but happy. “Can we do this after every gym day?”

Asa laughed breathlessly, tracing lazy circles over Ahyeon’s abs with one finger. “Only if I get to watch oppa wreck you again. You looked so pretty getting fucked, Ahyeon-ah.”

Ahyeon, still flushed and glowing from her own “extra core work,” Kim Jong-kook in his white graphic tee and grey shorts, and Asa—center of attention now, exactly as the playful Japanese rapper liked it.

Asa stood at the squat rack, black zip-up long-sleeve top half-unzipped to reveal the tight sports bra underneath, the fabric damp and clinging to her small, perky chest. Her matching high-waisted black shorts with white stripes rode up her toned thighs, the material stretched taut over the curve of her round ass every time she moved. Her short black bob was slightly messy from sweat, strands sticking to her forehead, but her eyes sparkled with that signature ENFP mischief. She gripped the barbell across her shoulders, feet shoulder-width, and dropped into a deep squat—glutes flexing, core tight, the kind of form that made fans lose their minds in the earlier video.

“Trainer-nim… oppa,” Asa called out, voice light and teasing as she rose smoothly, a high-pitched little laugh escaping her lips—the same playful crackhead energy she brought to dorm karaoke nights. “Is my depth okay? I don’t want to look sloppy in the Choom choreo. Make it perfect, yeah?” She winked over her shoulder, that creative, outgoing spark lighting up her face even though her thighs were already burning.

Jong-kook circled her slowly, arms crossed over his broad chest, the same warm mentor tone he used on camera now laced with something heavier. “Depth is good, Asa-ya. But keep your chest up—don’t lean forward.” He stepped behind her, one large hand settling on her lower back, the other lightly on her hip to guide the next rep. His palm was warm through the thin fabric, thumb brushing the strip of bare skin where her top had ridden up. “Feel that engagement? Good. Ten more, just like that.”

Asa lowered again, ass pushing back until her thighs were parallel to the floor, and let out a soft, breathy exhale that sounded suspiciously like the start of a moan. “Mmm… like this, oppa? Feels… deeper.” She rose with a little hip pop at the top, the motion deliberate, teasing, her shorts riding higher and flashing the underside of her cheeks. The mirror in front of her reflected everything—her sharp jawline, the playful glint in her eyes, the way her chest heaved under the unzipped top.

Ahyeon sat on a nearby bench, legs crossed, still in her white crop top and grey leggings, watching with that humble, positive smile. “Unnie, your form is so clean today,” she said encouragingly, voice bright and responsible like always. “Oppa’s hands look like they’re helping a lot… right?” There was a shy blush on her cheeks, but her eyes lingered on where Jong-kook’s fingers gripped Asa’s hip.

Asa finished the set, racked the bar with a metallic clang, and turned to face them both. Sweat glistened on her collarbones. She wiped her neck with the hem of her top, flashing her toned stomach and the faint V-line disappearing into her shorts. “Ahyeon-ah, you’re staring again,” she teased, high-pitched laugh bubbling up as she stepped closer. “Is it my squats… or the way oppa’s touching me?” She reached out, playfully flicking Ahyeon’s ponytail, then turned back to Jong-kook with a mischievous tilt of her head. “Oppa, my glutes feel so tight after yesterday’s session. Maybe you can stretch me out properly? Private recovery, you know?”

The air in the empty gym thickened. Jong-kook’s voice dropped, deep and rough around the edges. “Gym’s ours tonight, Asa-ya. No cameras. No interruptions.” He closed the distance, one hand sliding up her side under the unzipped top, palm flat against her ribs, thumb grazing the underside of her breast through the sports bra. “You’ve been teasing me with these shorts all session. That little hip pop at the top of every rep…”

Asa’s breath caught, but her playful grin stayed. “Teasing? Me?” She laughed again, that bright, infectious sound turning breathier as his thumb circled her nipple through the fabric. “Maybe I just like feeling oppa’s hands on me. Ahyeon-ah, come here—unnie needs help demonstrating proper… form.” She pulled Ahyeon off the bench and into the space between them, the three bodies close enough that heat radiated.

Ahyeon blushed deeper but obeyed, her responsible side melting into quiet eagerness. “Unnie… you’re so bold today,” she whispered, hands tentatively resting on Asa’s waist.

Jong-kook didn’t hesitate. He tugged Asa’s zip-up fully open and off, then yanked the sports bra up and over her head in one motion. Her small, perky breasts bounced free—nipples already hard and dark. “Fuck, look at these,” he growled, cupping one roughly, pinching the peak until Asa arched with a sharp gasp. “Perfect for my mouth.” He bent and sucked hard, tongue flicking fast, teeth grazing just enough to make her jolt.

“Ah—! Oppa—!” Asa’s voice cracked into a high-pitched moan, the same playful tone now filthy and needy. “Shit, that feels good—harder, oppa—bite it—!” Her hands flew to his hair, fingers tangling as she pressed her chest forward. At the same time, she reached back for Ahyeon, pulling the younger girl’s hand down to her shorts. “Ahyeon-ah… take them off for unnie. Feel how wet I am already.”

Ahyeon’s fingers trembled but obeyed, sliding Asa’s shorts and panties down her thighs in one smooth tug. The fabric pooled at her ankles, revealing her smooth, shaved pussy already glistening. “Unnie… you’re soaked,” Ahyeon murmured, voice awed and positive even now. “So pretty…”

Asa kicked the clothes aside and laughed breathlessly, that ENFP spark turning pure lust. “All because oppa kept grabbing my ass during squats. Ahyeon-ah, be a good girl and taste unnie while oppa fucks me.” She turned, bracing her hands on the squat rack bar at waist height, ass pushed out—exactly like the perfect squat form from minutes ago, only now completely naked from the waist down.

Jong-kook freed his thick cock from his shorts, heavy and leaking, and rubbed the head along Asa’s slick folds. “You want it, Asa-ya? Want oppa to wreck this tight rapper pussy right here in the gym?”

“Yes—fuck—yes, oppa—!” Asa pushed back impatiently, high-pitched and demanding. “Don’t tease—put it in—fill me—ahh—!” The last word turned into a loud moan as Jong-kook thrust in deep, bottoming out in one smooth stroke. Her walls clenched around him, hot and wet, and she cried out again. “F-fuck—! So big—stretching me so good—!”

Ahyeon dropped to her knees in front of Asa, hands on her thighs, and leaned in. Her tongue licked a long, slow stripe from clit to where Jong-kook’s cock disappeared inside, tasting both of them. “Mmm… unnie tastes so sweet mixed with oppa,” she whispered, then sucked Asa’s clit hard.

Asa’s legs shook. “Ahyeon—! Your tongue—fuck—right there—! Don’t stop—suck unnie’s clit while oppa rails me—ahh—!” Jong-kook started thrusting—deep, powerful snaps of his hips that made Asa’s ass ripple and her short bob swing. The mirror in front showed every detail: Asa’s mouth open in constant moans, breasts bouncing, abs flexing with every impact; Ahyeon’s pretty face buried between her legs, tongue working eagerly; Jong-kook’s muscular body driving in from behind, one hand fisted in Asa’s hair, the other slapping her ass lightly.

“Shit—Asa—you’re gripping me like a vice,” Jong-kook groaned, pounding harder, the wet slap of skin echoing off the gym walls. “This pussy was made for oppa’s cock. Taking every inch like a greedy little monster.”

Asa’s moans grew higher, playful even in ecstasy. “Oppa—harder—! Fuck me like you mean it—! Ahyeon-ah—finger me too—make unnie cum all over your face—!” Ahyeon slid two fingers in alongside Jong-kook’s cock, curling them perfectly, and Asa screamed. “Fuck—! I’m— I’m cumming—! Oppa—Ahyeon—shit—!”

Her orgasm hit hard—walls pulsing, thighs trembling, a gush of slick coating Ahyeon’s tongue and Jong-kook’s shaft. She laughed through it, breathless and high-pitched. “Yes—yes—fuck—unnie’s cumming so hard—!”

Jong-kook didn’t slow. He pulled out, spun Asa around, and lifted her onto the padded stretching mats in the corner. Ahyeon followed, crawling beside them. Asa lay on her back, legs spread wide, and pulled Ahyeon down into a messy kiss—tongues sliding, sharing the taste of herself—while Jong-kook hooked Asa’s knees over his shoulders and slammed back inside.

“Take it—take all of oppa’s cock, Asa-ya,” he grunted, folding her in half, pounding deep enough that the bulge showed in her lower stomach. “Look at that—filling you up so good.”

Asa broke the kiss with Ahyeon to moan loudly. “Ahh—! Oppa—! So deep—hitting my spot—! Don’t stop—fuck me stupid—!” She reached down, rubbing her own clit fast while Ahyeon sucked on her nipples, alternating between them with soft, positive little hums. “Ahyeon-ah—bite them—yes—! Unnie loves it rough—!”

Jong-kook’s thrusts grew erratic, sweat dripping down his chest. “Gonna cum—gonna fill this tight pussy—!”

Asa’s eyes locked on his, mischievous even now. “Inside—cum inside unnie—breed me—! Ahyeon-ah, watch oppa fill me—!” She came again first, back arching off the mat with a sharp cry, walls milking him tight.

Jong-kook followed with a deep groan, burying himself to the hilt and pumping thick, hot ropes deep inside her. “Fuck—Asa—take it all—!” Cum overflowed, leaking out around his cock as he kept thrusting through it.

Ahyeon leaned down immediately, licking up every drop that spilled, tongue flicking over Asa’s clit and Jong-kook’s shaft. “Unnie… so much… it tastes so good,” she murmured happily.

Asa laughed weakly, that bright, playful sound returning as she pulled both of them close—Ahyeon on one side, Jong-kook on the other. Sweat cooled on their skin, the gym mats sticky beneath them. “Best… recovery… ever,” she panted, high-pitched giggle slipping out. “Oppa, you wrecked unnie so good. Ahyeon-ah, your tongue is magic. We’re doing this after every gym day from now on, right?”

Ahyeon nodded, curling against Asa’s chest with her usual responsible smile, even as cum still dripped down her chin. “Definitely, unnie. For the Choom era… we need all the extra stamina we can get.”

Jong-kook chuckled deeply, arms around both idols, already half-hard again against Asa’s thigh. “For my favorite monsters? The gym’s yours anytime. Now rest up—those squats tomorrow won’t hit the same without this kind of warm-down.”