Behind the Stage: Between noona and baby (Chapter 1)
aespa Karina X aespa Winter X Male OC
2884 words Tags: smut, siblings, teasing, threesome, oral sex, vaginal sex, creampie, riding, multiple orgasms, foot fetish, footjob, size difference, dom/sub, older sister, younger sister, obsession, masturbation
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The penthouse had the same cozy smell every morning: fresh coffee, Yoona's floral perfume, Taeyeon's soft vanilla lotion, and the light sweet scent of the perfume the sisters always wore at shows. At seven in the morning, Yoona was already in the kitchen, her long bare legs under one of Taeyeon's oversized shirts, humming old Girls’ Generation songs while stirring the eggs and rice. Taeyeon entered a few moments later, sleepy and warm, hugging her wife from behind and giving her a kiss on the nape of her neck. They were the foundation of the family, married, mature, affectionate. Yoona was the most organized and proper, always making sure everyone's schedules aligned. Taeyeon was the calmest, whose love felt like a blanket you could wrap yourself in forever.
Then the siblings arrived, turning the kitchen into something noisier and much more electric. Jimin (Karina to the world, but just Jimin at home) entered next, her hair still damp from the shower, wearing only an old loose white t-shirt that did nothing to hide the heavy sway of her huge, soft breasts and tiny black sleep shorts that clung tightly to the curves of her thick thighs and that perfect, round ass. At twenty-two, she was the oldest, the second mother (or rather, the third), the one who made sure Luccas ate well and that Minjeong remembered her vitamins. As she passed, she ruffled Luccas's short dark hair, leaned down to kiss the top of Minjeong's head, and dropped into the chair with a dramatic sigh, “Ah~ another day being perfect...” she joked, and her mothers laughed because it was true. She kept everyone together.
Minjeong (better known as Winter), nineteen years old and the baby of the family, entered last, almost disappearing inside one of Luccas's huge hoodies, which hid her small and delicate body. She was reserved with strangers, but at home she was all soft whimpers and excessive caresses seeking attention. Casually, she sat directly on Luccas's lap, resting her head under his chin and murmuring: “Oppa, did you sleep well?”, while her hands played with the hem of his shirt. Her jealousy was silent but huge, especially when Jimin's hugs lasted a little too long or when Luccas's eyes fixed even for a second on his older sister's chest.
Luccas, twenty years old, sat in the middle, literally and figuratively. The quiet middle child, the one who carried everyone's bags after practice and remembered what kind of coffee each aespa member needed. On the surface, he was the perfect son and brother. Respectful, helpful, introverted. No one knew that inside, he was burning alive with the most intense and shameful perversion imaginable. It started at sixteen and, over time, consumed him more and more. Every room, every scent, every movement in this house fed the fire inside him.
He was obsessed with his sisters. Jimin's voluptuous body, the vigorous sway of her big breasts, the softness of her belly, the way her thick thighs rubbed against each other. Minjeong's small and delicate body, her flat chest, narrow waist, the round little butt that seemed almost fragile. He was equally obsessed with his mothers. Yoona's long and elegant legs and the way her big ass filled her yoga pants. Taeyeon's slender and graceful figure and the quiet maturity in her smile. And permeating all of this, clear and undeniable, was his deep foot fetish. He loved their feet. The soft arches, the perfect toes, the way they looked after a long day in high heels or barefoot on the cold tile. He desired them in secret. The sight of any of their feet was enough to make his cock throb instantly.
He had more than special moments alone whenever the mothers went out. He masturbated in Jimin's bed with her used panties wrapped around his penis, inhaling her scent while imagining burying his face between her thighs. He would sneak into Minjeong's room to rub himself on her pillow while imagining her small body under him, using her as the perfect little toy she secretly wanted to be. He had done the same in his mothers' room. Once, thinking about Yoona, he masturbated furiously while looking at the strappy heels she had worn the night before, imagining her long and beautiful feet pressed against his face. Another time, thinking about Taeyeon, he stuck his nose into a pair of her elegant Louboutin high heels and masturbated imagining her beautiful soles on his tongue. The guilt was there, but so was the thrill.
Jimin noticed everything. She started leaving the bedroom door ajar while changing after practices, allowing him to see her voluminous and heavy breasts swinging when she unhooked her bra and the slow movement of her bottoms sliding down her thick thighs. She would “accidentally” brush her body against his in the hallway, pressing her soft belly and huge breasts against his chest for a second longer than she should. At dinner, her small soft hand would rest on his thigh under the table and squeeze it, her eyes shining with mischief. Minjeong's jealousy made her bolder, in her own way. She started wearing even shorter shorts at home, sat on his lap more often, rubbing her tiny ass while whispering, “Oppa, I can feel you getting hard… Is it because unnie is being super clingy again?” She would press her flat chest against his back in the kitchen and murmur: “I can be good for you too, you know... Even better than her...”
The tension had been building slowly for months until it finally exploded. The first big break happened on a Thursday night. Yoona and Taeyeon were at a business dinner. Jimin and Minjeong had just gotten home from a performance. Luccas couldn't wait any longer. He entered Jimin's room while she was showering, grabbed the black pantyhose she had just taken off, which was still warm and with the crotch slightly wet, and wrapped it around his cock on her bed. He was in the middle of jerking off, moaning her name, when the door opened. Jimin was there, wrapped in a towel, hair damp, her dark eyes intense. She didn't look surprised and a slight smile formed on her face, “Luccas…” He froze, his cock throbbing, his face burning with shame. She entered, closed the door slowly and let the towel fall. Her voluptuous body was completely exposed. Huge heavy breasts with dark nipples, soft belly, meaty thighs and a beautiful pussy that she hadn't shaved in a few days and that certainly smelled and tasted wonderful. “Little brother… you don't need to hide anymore. I've known for a long time. The way you look at me. The way my things come back… used.” She smiled again, soft and warm, crossing the room to sit on the edge of the bed. “And I like it. A lot.” That night, they didn't go all the way. She simply pulled his face to her chest, cradling him like she always did, and let him suck on her nipple while her small hand caressed his cock slowly and gently through the pantyhose. She watched her brother and his desperate mouth on her breast with great pride. Afterward, she held him tightly as he spilled all over her soft belly, thick jets painting her skin. She kissed his forehead and whispered: “You're safe with me, Luccas. Noona is here.”
Minjeong caught them the next morning, entering the hallway and seeing Jimin saying goodbye to Luccas with a kiss, his hand cupping one of her breasts. Instead of anger, Minjeong's eyes filled with desire and that familiar intense jealousy. She simply approached, leaned against his back and whispered: “It'll be my turn soon, oppa. I'm waiting too.” Jimin truly claimed him two nights later. Minjeong was in a prolonged recording session. The mothers were out. Jimin prepared dinner wearing nothing but an apron, her huge tits visible from the side of the apron and her big ass completely exposed. They ate on the couch, her thigh resting over his lap. Afterward, she pulled him into her room, gently pushed him onto the bed and straddled his hips. “I need you tonight, baby,” she murmured, her voice low and affectionate. “No more pretending.” She guided his hands to her breasts, letting him squeeze them as much as he wanted. Then she slid down his body, taking his thick cock into her mouth, hot, wet and perfect, sucking him slowly and deeply until he was trembling. When she finally sat on his cock, taking every inch in a smooth slide, Luccas moaned at how hot and tight she felt around him. She rode him firmly, thighs flexing as her hips rotated in slow circles. Her huge boobs swayed with every movement, and she kept one hand in his hair, guiding his mouth back to her nipple. “That's it... suck on noona while you fuck me,” she whispered, her voice sweet and commanding at the same time. “You're such a good boy for me, Luccas. My perfect little brother.” He felt completely dominated, completely safe, loved in the most obscene way possible. Jimin treated him like her baby and her toy at the same time. Protective, dominant, infinitely affectionate. She made him feel small and loved, even while using his dick for her own pleasure, whispering praises between moans until they both came intensely, him deep inside her and her contracting around him with a trembling cry.
Afterward, she slowly pulled away from him, his cock glistening with their mixed fluids, and smiled that mischievous older sister smile. “I know what else you want, baby. You've been staring at my feet for years.” She positioned herself on the bed, placing the perfect soft soles of each foot on either side of his still-hard cock, and pressed them together around him. Her arches wrapped perfectly around his thickness, her toes flexing as she began to stroke him up and down in a slow, teasing footjob. The heat of her skin and the way her toes curled over the head of his cock was everything he had fantasized about. Jimin watched his face the whole time, biting her lip, her huge breasts rising and falling as she stimulated him. “That's it… fuck noona's pretty feet like the little pervert you are. You've jerked off thinking about them so many times, haven't you?” Luccas thrust between her soles, moaning, until he couldn't hold back anymore. He came hard, thick ropes of cum splashing over her perfect feet and ankles. Jimin just chuckled softly, bringing one foot to his mouth so he could lick it clean. “Good boy.” Afterward, she pulled him to her chest again, nestling his head between her breasts, stroking his hair and kissing his forehead. “You belong to me now,” she murmured. “I'll protect you, spoil you, ruin you… anything you need. I love you so much, little brother.”
Minjeong's turn came three days later. She had been extremely affectionate and whiny all morning, wearing only Luccas's hooded sweatshirt, with nothing underneath. She found him in his room and suddenly snuggled into his lap. “Oppa…” she whispered, her voice soft and sweet but tinged with desire. “Unnie had you first... but I want you to use me too...” Luccas tried to be gentle at first, kissing her softly, removing the sweatshirt to reveal her tiny breasts, smooth belly and narrow waist. But Minjeong didn't want gentleness. She pushed his head between her thighs and begged: “Eat me, oppa. Make me yours.” Her pussy was shaved, tiny, tight and so wet. He licked her until she came, moaning and pulling his hair. When he finally penetrated her, she gasped, digging her nails into his shoulders. “You're splitting me... so deep... use me harder, oppa.” He fucked her like the delicate toy she wanted to be, pinning her small wrists above her head, thrusting deep and firmly into her tight heat while her thin legs wrapped around his waist. Minjeong treated him differently from Jimin. She was possessive and spoiled, making him feel powerful and needed at the same time. She wanted to be dominated, used and then spoiled. “Harder… break me,” she moaned, her eyes glazed with pleasure. He came deep inside her, filling her up while she contracted around him, cumming again with a soft moan. Afterward, she snuggled against him like a kitten, her hand wrapping around his softening dick. “Don't love unnie more than me,” she murmured, half joking, half serious. “I'll be your perfect little toy… or I'll be bad if you want. But you have to take care of me afterward, oppa.”
The three continued getting involved for another week. Stolen kisses in the kitchen, Jimin caressing Minjeong on the couch while Luccas watched, Minjeong giving him a blowjob under the dinner table while Jimin cooked. The mothers would come home and, apparently, everything seemed normal. Family dinners, movie nights where Luccas's head rested on Jimin's soft chest and Minjeong snuggled by his side. But the atmosphere between the siblings was electric.
The night when everything became definitive came on a stormy Saturday. Yoona and Taeyeon had spent the night in another city. The penthouse belonged to the siblings. They started on the couch, with the lights low, the rain beating hard against the windows. Clothes were slowly removed. Jimin's huge breasts were freed, Minjeong's small body looked so fragile next to her, Luccas's thick cock stood proud and leaking. Jimin took control as always. She made Luccas lie on his back on the couch. Then she straddled his face, facing his feet, lowering her wet pussy onto his mouth while leaning forward. Minjeong climbed on top of him too, but instead of mounting his cock immediately, she knelt between his spread thighs and took him into her mouth first, sucking him deeply while Jimin rubbed herself on his face. The position allowed the sisters to kiss and touch each other on top of him. Jimin's hands in Minjeong's blonde hair, Minjeong's fingers pinching Jimin's nipples, while Luccas licked, sucked and moaned into his older sister's pussy. After a few minutes, Jimin pulled away from his face, breathing heavily. “Switch, baby. I want to feel you inside me while Minjeong watches closely.” She turned and sank onto his cock in cowgirl position, facing him this time, so he could see her massive tits swaying loosely. Minjeong crawled to the side of them on the carpet, kissing Luccas wetly while her hand rubbed Jimin's clit. The three moved together, Jimin riding him deep and slow, Minjeong's tongue in his mouth, her tiny body pressed against his side. They kept switching positions, never losing the rhythm. Luccas sat up, pulled Minjeong onto his lap with her back to him and fucked her in reverse cowgirl while Jimin knelt in front of her, licking Minjeong's tiny clit and massaging Luccas's balls at the same time. Minjeong came hard, whimpering like a puppy. Then Luccas put Jimin on all fours on the carpet and penetrated her from behind, hammering her soaked pussy while Minjeong lay underneath them, sucking and squeezing Jimin's swinging breasts.
The hours passed and they didn't even notice. They came again and again. Jimin contracting around him while Minjeong masturbated, Minjeong screaming when he filled her small pussy, the two sisters on their knees sharing his cock with their mouths until he covered their tongues and chins. In the last round, Luccas laid them on their backs side by side on the carpet, legs spread, and fucked them one after the other, with deep thrusts into Jimin's welcoming heat, then into Minjeong's incredibly tight little pussy, until he couldn't hold back anymore. He pulled out at the last second and came over both their bellies and breasts, thick white spurts marking them as his. When they finally collapsed in a sweaty, cum-covered pile on the couch, Jimin pulled their heads to her soft chest. Luccas latched onto a fat nipple, lazily sucking like the baby he secretly loved to be. Minjeong caressed the other, her hand possessively wrapping around her brother's exhausted cock.
“This is us now,” Jimin whispered, her voice hoarse and satisfied, stroking their hair. “No more hiding. No more masturbating alone in our rooms. You cum for your sisters. You fuck us. You belong to us.” Minjeong kissed his chin, sleepy and satisfied. “And I can be your little toy whenever I want… right, oppa?” Luccas nodded, exhausted, happy, completely subdued. The rain kept falling. The penthouse smelled of sex, vanilla, strawberry, sweat and cum. Tomorrow the mothers would come home, and everyone would sit down for breakfast as if nothing had changed. Yoona teasing them for being too quiet, Taeyeon smiling softly. But the three would exchange secret glances across the table, carrying the most obscene and most beautiful family secret. Jimin kissed the top of Luccas's head. “Sleep, baby. Tomorrow we start figuring out how to make this work every day… us three, whenever we want.” Minjeong let out a soft giggle against his neck. “Promise?” “I promise,” Jimin murmured, pulling the blanket over the three of them. Luccas then fell asleep between the two girls who had become his obsession, his ruin and his everything. His sisters, his lovers, the center of all his obscene fantasies.











