Seong Jin | Keep It A Secret From Your Mother | Don't Tell Mom

The humid summer air hung heavy and sweet, thick with the scent of night-blooming jasmine and the unspoken desires that had been simmering between Seong Jin and his younger stepbrother, the boy he affectionately, and somewhat privately, referred to as 'Keep It A Secret From Your Mother' in his thoughts. Their small apartment, usually a haven of quiet, felt charged with a different kind of energy tonight. Seong Jin watched as the boy—still so young, yet possessing a maturity that both captivated and unsettled him—moved through the dim living room, the silhouette of his slender form accentuated by the moonlight filtering through the sheer curtains. A sigh, barely audible, escaped Seong Jin's lips. He had been resisting this, fighting against the burgeoning feelings that felt both forbidden and undeniably real. But tonight, the resistance felt… futile.

The boy, sensing Seong Jin's gaze, turned. His eyes, wide and innocent in the twilight, met Seong Jin's, and a flicker of something electric passed between them. It was a shared understanding, a silent acknowledgment of the unspoken question that had been hanging in the air for weeks, growing heavier with every stolen glance, every accidental touch, every shared moment of quiet intimacy. Seong Jin’s heart hammered against his ribs, a frantic rhythm against the stillness of the night. He remembered the first time he’d truly noticed him, not as a child, but as… something more. It was during a late-night study session, the boy’s brow furrowed in concentration, his lips slightly parted, and a stray strand of dark hair falling across his cheek. Seong Jin had felt a jolt then, a sudden, bewildering fascination that had only deepened with time.

“Seong Jin hyung?” the boy’s voice, soft and melodic, broke the spell. He drifted closer, a hesitant grace in his movements. “Are you alright? You seem… lost in thought.” He paused, his gaze searching Seong Jin’s face with an innocent curiosity that was both disarming and profoundly arousing. Seong Jin cleared his throat, the sound rough in the quiet room. “Just… thinking,” he managed, his voice huskier than he intended. He desperately tried to maintain his composure, to push back the tide of longing that threatened to drown him. But seeing the boy so near, the undeniable vulnerability in his posture, was making it increasingly difficult. The boy’s scent, a subtle mix of clean laundry and something uniquely his own, filled Seong Jin’s senses, making his head spin.

“About what?” the boy asked, taking another step, closing the distance between them until Seong Jin could feel the warmth radiating from his body. Seong Jin’s gaze drifted down, his eyes tracing the curve of the boy’s hips beneath his loose sleepwear, the gentle slope of his shoulders. He swallowed hard, his mouth suddenly dry. This was it. The precipice. He could pretend, deflect, retreat. Or he could… lean in. He thought of the tag he’d playfully, and perhaps dangerously, assigned him in his mind: Keep It A Secret From Your Mother. The irony, the thrill of it, was almost overwhelming. This entire situation, this burgeoning attraction, was precisely something his mother would never, ever understand. And yet, here they were, on the cusp of something that felt both illicit and divinely destined.

“About you,” Seong Jin finally confessed, the words tumbling out before he could censor them. The boy’s eyes widened slightly, a blush creeping up his neck and onto his cheeks. It was a beautiful sight, a testament to his innocence, and Seong Jin felt a surge of possessiveness, fierce and unexpected. “I… I’ve been thinking about you a lot lately. More than I probably should.” He watched the boy’s reaction, his heart pounding with a mixture of fear and exhilaration. The boy didn’t pull away. Instead, he tilted his head, his gaze unwavering. “Is that… bad?” he whispered, his voice barely a breath. Seong Jin couldn’t hold back the small, trembling smile that touched his lips. “No,” he said, his voice laced with an emotion that was both raw and tender. “It’s not bad. It’s just… new. And overwhelming.”

The boy stepped closer still, his hand reaching out tentatively to touch Seong Jin’s arm. The simple contact sent a shiver through Seong Jin’s entire body. He looked down at the boy’s hand, so small and delicate against his own skin. He could feel the tremor in the boy’s touch, a reflection of his own internal turmoil. “I’ve been thinking about you too, hyung,” the boy admitted, his voice laced with a vulnerability that made Seong Jin’s resolve crumble. “A lot. I don’t understand it. It’s… confusing.” He looked up at Seong Jin, his eyes filled with a mixture of apprehension and a yearning that mirrored Seong Jin’s own. Seong Jin’s gaze softened. He reached out, his fingers gently brushing a stray strand of hair from the boy’s forehead. The touch was electric, a silent promise of something more. The air between them crackled, thick with unspoken needs and desires. Seong Jin felt his control slipping, the years of platonic affection and familial obligation dissolving in the heat of the moment. This was no longer about being stepbrothers. This was about two souls, drawn together by an irresistible force, teetering on the edge of a forbidden intimacy.

“It doesn’t have to be confusing,” Seong Jin murmured, his thumb stroking the boy’s soft cheek. He felt the boy lean into his touch, a silent surrender that made Seong Jin’s breath catch in his throat. His gaze dropped to the boy’s lips, so full and inviting, and the urge to kiss him was almost unbearable. He could feel the boy’s heart beating in time with his own, a frantic, shared rhythm. He leaned in, slowly, giving the boy every opportunity to pull away, but he didn’t. Instead, his eyes fluttered shut as Seong Jin’s lips met his. The kiss was soft at first, tentative, a gentle exploration. But as Seong Jin deepened it, as he tasted the sweet innocence and burgeoning passion of the boy, the kiss became something more. It was a confession, a desperate plea, a promise. Seong Jin’s hands moved, one finding its way to the back of the boy’s neck, pulling him closer, the other sliding down his back, feeling the delicate curve of his spine beneath the thin fabric. He felt the boy’s hands, shy at first, then growing bolder, wrap around his neck, pulling him even tighter.

The kiss intensified, their breaths mingling, their bodies pressing together. Seong Jin felt a tremor run through the boy, a wave of pure sensation that he reciprocated with a groan. He pulled back slightly, his forehead resting against the boy’s, their eyes meeting once more. The innocence was still there, but now it was tinged with a new awareness, a dawning understanding of the depths of their mutual desire. “Hyung…” the boy whispered, his voice thick with emotion, his lips still dewy from the kiss. Seong Jin’s gaze dropped to the boy’s lips again, then lower, to the gentle swell of his chest beneath his shirt. He knew, with a certainty that both thrilled and terrified him, that he wanted to explore every inch of him. He wanted to unravel him, to learn his secrets, to make him his.

“Let’s go to my room,” Seong Jin whispered, his voice a low rumble, the invitation clear and unmistakable. He watched as the boy’s eyes widened slightly, a flicker of both fear and excitement dancing within them. He nodded, a silent assent, and Seong Jin’s heart soared. He took the boy’s hand, his fingers intertwining with the boy’s, and led him through the quiet apartment, the air thick with the unspoken tension of their shared secret. Each step felt like a step further into forbidden territory, a step closer to a pleasure they had both, in their own ways, been yearning for.

Inside Seong Jin’s room, the moonlight cast long, dancing shadows on the walls, creating an atmosphere of intimate secrecy. Seong Jin closed the door softly, the click of the latch echoing the finality of their decision. He turned to face the boy, who stood before him, his gaze still filled with a mixture of shyness and a growing curiosity that was intoxicating. Seong Jin’s gaze swept over him, taking in the boy’s slender frame, the curve of his hip, the way his sleepwear clung to his body, hinting at the wonders beneath. He felt a primal urge rise within him, a desire to shed the layers of clothing, to reveal the pure, unblemished beauty of the boy’s skin. “Are you… sure?” Seong Jin asked, his voice still hushed, needing to hear the boy’s confirmation, needing to know that this was not a mistake.

The boy nodded, his eyes locked on Seong Jin’s. “I want this, hyung,” he said, his voice stronger now, a quiet conviction in his tone. “I want you.” The words sent a jolt of pure bliss through Seong Jin. He reached out, his fingers tracing the line of the boy’s jaw, his thumb brushing against his soft skin. He felt the boy shiver at his touch, a visible response that only fueled Seong Jin’s desire. “Then let’s not waste another moment,” Seong Jin murmured, his gaze dropping to the boy’s lips once more. He leaned in, and this time, the kiss was urgent, demanding. Seong Jin’s hands moved to the hem of the boy’s sleep shirt, his fingers eager to explore the skin beneath. He felt the boy’s hands join his, working together to shed the fabric, revealing the boy’s smooth, pale chest. Seong Jin’s breath hitched. He had imagined this, dreamed of it, but the reality was far more breathtaking. The sight of the boy, so vulnerable and open, stirred a possessiveness in Seong Jin that was both thrilling and a little frightening.

He kissed the boy’s collarbone, then his neck, inhaling his scent, a heady perfume of innocence and burgeoning sensuality. The boy moaned softly, arching into Seong Jin’s touch, his fingers tangling in Seong Jin’s hair. Seong Jin’s hands continued their exploration, sliding down the boy’s torso, feeling the taut muscles beneath his skin. He reached the waistband of the boy’s sleep shorts and hesitated for a fraction of a second, a silent question. The boy, as if understanding his unspoken query, gave a small nod, his eyes filled with an eagerness that made Seong Jin’s heart race. With trembling fingers, Seong Jin slowly, deliberately, pulled down the elastic waistband. The fabric slid down the boy’s hips, revealing the tantalizing sight of his bare skin. Seong Jin’s gaze was drawn to the boy’s backside, a perfect, round curve that seemed to invite his touch. He couldn’t resist. He reached out, his palm cupping the boy’s firm, yielding ass, marveling at its soft smoothness.

The boy gasped, a soft sound of pleasure, and leaned back into Seong Jin’s touch. Seong Jin’s thumb brushed against the sensitive skin of his ass, eliciting another pleased groan. He could feel the boy’s excitement building, his breathing becoming more rapid. Seong Jin’s own arousal was a fierce, throbbing ache, a testament to the overwhelming desire he felt for the boy. He continued to caress the boy’s backside, his fingers tracing the dimples of his cheeks, enjoying the way the boy’s body responded to his touch. He then moved his hand lower, to the crease of the boy’s thighs, feeling the heat radiating from him. He could feel the boy’s anticipation, his quiet hunger. Seong Jin’s gaze swept over the boy’s body again, a slow, appreciative appraisal. He wanted to memorize every curve, every line, every inch of him.

“You’re so beautiful,” Seong Jin whispered, his voice rough with desire. He lowered his head, his lips brushing against the boy’s ear, sending a shiver down his spine. He felt the boy’s body tense, then relax into his touch. Seong Jin’s hands continued their exploration, his fingers gently tracing the outline of the boy’s body, learning his contours. He felt the boy’s soft skin, the slight tremor that ran through him at his touch. He kissed the boy’s shoulder, then his neck, his jawline, finally returning to his lips. The kiss was no longer tentative; it was a passionate exchange of mutual desire, a wordless declaration of their burgeoning love and lust. Seong Jin felt the boy’s body pressing against his, their arousal undeniable. He could feel the heat between them, the palpable tension that had been building for so long.

Seong Jin’s hands moved lower, his fingers brushing against the sensitive skin of the boy’s inner thigh. He felt the boy’s breath hitch, his eyes fluttering open. Seong Jin’s gaze met his, and he saw the same raw desire reflected there. He continued his ministrations, his fingers inching closer to the boy’s most intimate parts. He felt the boy’s hips arch, a silent plea for more. Seong Jin’s heart pounded in his chest, a drumbeat of anticipation. He could feel the boy’s readiness, his willingness to surrender. He gently parted the boy’s legs, his fingers tracing the sensitive skin of his inner thighs. The boy moaned, his body trembling. Seong Jin’s gaze was locked on the boy’s face, watching every flicker of emotion, every sigh of pleasure.

“Hyung…” the boy whispered, his voice strained with desire. Seong Jin’s fingers continued their gentle exploration, teasing and caressing, until he felt the boy’s soft, yielding flesh. He watched as the boy’s eyes fluttered shut, his body arching in response. Seong Jin leaned down, his lips brushing against the boy’s sensitive skin, his touch sending waves of pure pleasure through him. He continued to kiss and caress him, his tongue tracing exquisite patterns, eliciting soft moans and gasps of delight. He watched the boy’s body tremble with pleasure, his muscles clenching and unclenching as he surrendered to the sensations. Seong Jin reveled in the boy’s response, the knowledge that he was bringing him such profound pleasure filling him with a sense of exhilarating power and tenderness.

Seong Jin felt the boy’s arousal build to a fever pitch, his moans growing louder, more desperate. He knew the boy was close, and he wanted to be there for him, to witness his release. He continued his ministrations, his tongue and fingers working in perfect harmony, bringing the boy to the edge of ecstasy. He felt the boy’s body convulse, a gasp escaping his lips as he climaxed, his entire body trembling with the intensity of his pleasure. Seong Jin held him close, his own arousal reaching its peak, a throbbing ache that demanded release. He pulled back slightly, their eyes meeting once more. The boy’s face was flushed, his eyes hazy with pleasure, and Seong Jin felt a wave of love and tenderness wash over him. He couldn’t wait any longer.

“Now,” Seong Jin breathed, his voice laced with raw desire. He guided the boy onto his bed, the soft mattress yielding beneath their weight. He then positioned himself above the boy, his gaze locked on his beautiful, willing face. He felt the boy’s eager anticipation, his small hands gripping Seong Jin’s shoulders. Seong Jin gently parted the boy’s legs, his own arousal pressing against him. He wanted to give the boy everything, to explore every hidden desire. He began to push forward, slowly, deliberately. He felt the boy’s body open to him, the soft resistance, then the yielding. He whispered words of encouragement, of love, as he entered the boy, his body encompassing the boy’s. The boy cried out, a sound that was both pain and pleasure, and Seong Jin paused, giving him time to adjust. He watched the boy’s face, his eyes filled with a mixture of vulnerability and burgeoning delight.

“Are you okay?” Seong Jin murmured, his voice husky. The boy nodded, his breath coming in ragged gasps. “Yes, hyung,” he whispered, his eyes shining. “It… it feels good.” Seong Jin’s heart swelled with a profound sense of relief and happiness. He began to move, slowly at first, then with more urgency, his hips thrusting rhythmically against the boy’s. He felt the boy’s body respond, his hips meeting Seong Jin’s, their rhythm becoming one. The sounds of their lovemaking filled the room, soft moans and gasps, the rhythmic creak of the bed, a symphony of passion. Seong Jin watched the boy’s face, his eyes glazed with pleasure, his lips parted in a silent gasp. He felt the boy’s body clench around him, a sign that he was enjoying himself, that he was experiencing a pleasure that transcended anything they had known before.

Seong Jin’s thrusts became more intense, his own pleasure building with each movement. He could feel the boy’s climax approaching, his body tensing in anticipation. He whispered the boy’s name, his own arousal reaching its zenith. He watched as the boy’s eyes widened, a scream of pure ecstasy escaping his lips as he came, his body arching against Seong Jin’s. Seong Jin followed him, his own release coming in a powerful, overwhelming wave, burying himself deep within the boy, his body shuddering with the intensity of their shared pleasure. They lay tangled together, their bodies slick with sweat, their breaths coming in ragged gasps. Seong Jin held the boy close, his heart full of a love and tenderness that had been building for so long, finally finding its expression.

He kissed the boy’s forehead, then his temple, then his lips, a tender, lingering kiss. “I love you,” Seong Jin whispered, the words a balm to his soul. The boy, still catching his breath, looked up at him, his eyes shining with unshed tears and a happiness that mirrored Seong Jin’s own. “I love you too, hyung,” he whispered back, his voice thick with emotion. Seong Jin held him tighter, the weight of their shared secret now a comforting embrace rather than a burden. They had crossed a line, stepped into a world that was theirs alone, a world of passion, of love, of forbidden desires finally unleashed. And in the quiet aftermath of their passionate encounter, surrounded by the lingering scent of their lovemaking and the soft glow of the moonlight, Seong Jin knew that this was just the beginning of their beautiful, secret story. He had found his treasure, his beloved, and he would keep him, always, a precious secret from his mother, and a cherished love for himself.

As the night wore on, they continued to explore each other, their passion igniting anew with each whispered word, each stolen kiss, each tender caress. Seong Jin found himself utterly captivated by the boy’s innocence and his surprising capacity for pleasure. He marveled at the boy’s big ass, the perfect curves that fit so perfectly into his hands, and the way the boy eagerly opened himself to him, even for the more adventurous explorations they engaged in later that night. The tag "Paizuri" had been a fleeting thought, a distant fantasy, but as the night deepened, and the boy's willingness to experiment grew, Seong Jin found himself both surprised and deeply aroused by the boy's enthusiastic exploration of his own sexuality, finding new ways to express their burgeoning affection and desire.

He remembered the tag "Anal" with a jolt of renewed desire. The boy, sensing Seong Jin’s shift in gaze and the renewed intensity in his touch, looked up at him with those same innocent, yet now experienced, eyes. "Hyung?" he questioned softly, a hint of playful trepidation in his voice. Seong Jin smiled, a slow, sensuous curve of his lips. "You were so brave, so willing tonight," he murmured, his hand stroking the boy’s hip. "Are you ready for more?" The boy’s blush deepened, but his eyes held a spark of excitement. He nodded, a silent invitation that made Seong Jin’s heart leap. He wanted to explore every facet of their connection, every hidden desire that lay within them. With gentle, reassuring words and a slow, deliberate approach, Seong Jin guided the boy into a new realm of intimacy, a deeper connection that would further solidify their bond and their shared secret.

The experience was, as always, a testament to their growing trust and love. The boy’s initial apprehension quickly melted away into a cascade of pleasure, his body responding with an intensity that left Seong Jin breathless. He held the boy close, whispering words of affirmation and love throughout, ensuring the boy felt cherished and safe. The night was a whirlwind of passion, of discovery, of a love that was both forbidden and undeniably real. As dawn approached, casting a soft glow through the curtains, they lay entwined, their bodies sated, their hearts full. The secret they shared was a precious thing, a bond forged in passion and tender intimacy, a story that was only just beginning, forever etched in the quiet sanctity of their shared room, a perfect embodiment of "Don't Tell Mom."