Cover of The Silent Sinner's Sanctuary

The Silent Sinner's Sanctuary

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Sukuna's mute little bsby sister Megumi is making him go insane. She may not talk but she is horny has hell. His little bsby may just feel like it and sit on his bulge and starts rubbing herself on it and how could Sukuna posible refuses his bsby wanting to feel something good for once in her life? Nop he is just made she isn't letting him see the tv (all characters are adults) Sukuna insults a lot while talking. Sukuna loves his little bsby sister. Megumi can't talk at all.

Chapter 2: The Broken Door

The silence after her door slammed was a living thing. It vibrated in the stale air, thick with the ghosts of her heat and his own stupid, thundering heartbeat. Sukuna stood in the center of the living room wreckage, the cigarette forgotten between his fingers. He could still feel the imprint of her on his lap, the damp spot on his sweatpants, the taste of her on his skin.

He gave it exactly thirty seconds.

He didn’t need a clock. He counted it in the painful throbs of his own arousal, each one a dull, insistent echo of her little hips circling against him. One. Two. Three.

On thirty, he moved.

His footsteps were heavy, deliberate, eating up the short, grim hallway. The carpet was matted and stale. He didn’t pause at her door. He didn’t knock. He turned the knob—it was never locked, he’d removed the lock himself years ago—and shoved it open hard enough for the knob to dent the plaster behind it.

The scene was exactly what he’d pictured, yet seeing it froze the air in his lungs.

Megumi was on her bed, on her back, one knee hooked up. The oversized band shirt was rucked up around her ribs. Her shorts and the damp lace beneath were shoved down just past the curve of her hips. One of her small hands was buried between her pale, trembling thighs, fingers moving in a frantic, blurring rhythm. Her other hand was fisted in her own hair, her head thrown back, mouth a soundless, gasping ‘O’. Her eyes were squeezed shut, lost in the frantic chase for the finish he’d denied her.

She heard the door. Her eyes flew open, wide and black and instantly shocked. But her fingers didn’t stop. If anything, they moved faster, a defiant, desperate continuation. Her gaze locked on him, filled with a challenge that was all heat and no sense.

He crossed the room in two long strides. The air in here was different—cleaner, smelling like her shampoo and the faint, sweet musk of her own arousal. It clashed violently with the beer and smoke still clinging to him.

“You think you can just start the fucking party without me?” he snarled, his voice low and dangerous.

He didn’t grab her leg. He went straight for her wrist, the one working between her legs. His fingers closed around it, hard, and yanked it away, pinning it to the mattress above her head. She flinched, but a fresh wave of wetness glistened on her inner thighs at the rough handling. Her chest heaved.

With his other hand, he grabbed the waistband of her shorts and panties and yanked them down her legs in one brutal motion, tossing the tangled fabric into the corner. She was bare now, exposed, legs falling open in the aftermath of the movement. Completely helpless. Completely his.

He didn’t undress. He just shoved his sweatpants down his hips, freeing himself. He was already painfully hard, thick and heavy, the tip glistening. He positioned himself between her thighs, the head of his cock nudging against her slick, swollen entrance. She was so much smaller than him there, a tight, hot flutter against him.

“This,” he growled, leaning over her, his face inches from hers. He could see every fleck in her irises, every rapid flutter of her lashes. “This is what you wanted, isn’t it? All that wigglin’ and grindin’ on the couch. You wanted to be stuffed full. To be filled up by your big brother like the greedy little slut you are.”

Her answer was a full-body shudder, a silent, frantic nod. Her free hand came up to claw at his shoulder, her nails biting in.

He didn’t wait. He didn’t tease. He sank into her in one deep, brutal, seamless thrust.

The sensation punched the air from his lungs. She was impossibly tight, a scalding, velvet clutch that threatened to undo him immediately. Her back arched off the bed, her mouth stretching open in a silent scream. He swallowed it, crashing his mouth down onto hers. It was less a kiss and more a claiming, all teeth and tongue and shared, ragged breath. He could taste the faint, sour hint of the beer he’d given her.

He broke the kiss, pulling back just enough to look down at her. “Fuck,” he breathed, the word shuddering out of him. He was buried to the hilt, their bodies fused. He could feel the profound, intimate pressure of his length reaching its absolute limit inside her. He slid a hand between their sweat-slicked bodies, his thumb finding the tight, swollen bundle of nerves at her apex. She jerked violently. “Feel that? That’s all me. Every fucking inch.”

He began to move. Withdrawing almost completely, then driving back in with a force that made the bedframe shriek against the wall. Each thrust was a deliberate, deep piston stroke, aiming for that deepest part of her. He watched her face, watched the play of agony and ecstasy, the tears that leaked from the corners of her eyes from the sheer, overwhelming stretch.

“Look,” he grunted, his own control fraying at the edges. He took her hand from his shoulder and pressed it flat against the lower part of her belly, just above the thatch of dark hair. “Feel it. You feel that?”

Her eyes, glazed and unfocused, looked down at their joined hands on her stomach. With his next deep, rolling thrust, a distinct, firm bulge pushed up against the pale, taut skin of her lower abdomen. A visible outline of him, inside her. Her eyes widened in a mixture of awe and shock.

“That’s me,” he rasped, hammering into her, emphasizing the point with each surge. “In your guts. Reachin’ your fuckin’ cervix. Markin’ you up inside. You’re so small. Takes everything I got.”

Her response was a series of rapid, shuddering breaths. Her hips began to meet his, a clumsy, desperate rhythm. The wet, filthy sound of their joining filled the small room, louder than the distant bass from next door. The air grew hot, thick with the smell of sex and sweat.

He felt her begin to tense around him, her inner muscles fluttering like a frantic heartbeat. Her fingers dug into her own belly. A high, strained whine leaked from her throat, the closest she could get to a moan.

“That’s it,” he urged, his pace becoming more erratic, brutal. “Go on. Come for me. Squirt all over your brother’s dick. Let me feel it.”

The command, the crude permission, shattered her. Her body bowed, rigid for a stunning second before it convulsed. A guttural, silent scream tore through her as her climax hit, a violent wave that made her clamp down on him with a breathtaking intensity. And then he felt it—a hot, gushing rush that wasn’t just her internal clenching. It was a flood of release, soaking the sheets beneath them, dripping down his thighs as he pistoned into her through the pulses.

“Fuck yes,” he groaned, slamming into her once, twice more before his own vision whited out. He drove deep and held there, grinding as he emptied himself into her in hot, relentless spurts. He could feel it, the filling, the absolute congestion of her small body with his release. He collapsed on top of her, his weight driving her deeper into the mattress, his face buried in the damp mess of her hair. They were both gasping, a symphony of ragged breaths in the dark room.

For a long moment, there was only that: the frantic beat of two hearts, the slow drip of fluid, the smell of them.

He finally shifted, pulling out of her with a soft, wet sound that made her flinch. He rolled onto his back beside her, staring at the water-stained ceiling. He was still half-dressed, sweatpants around his thighs. She lay perfectly still, a wreck of limp limbs and spilled secrets.

Then, a new tension entered her body. A subtle, horrified clenching. He turned his head on the pillow to look at her. Her eyes were wide with a different kind of panic now. She shifted her hips minutely, and a faint, traitorous trickle escaped her, a warm leak onto the already-soaked sheets. Not squirt. Not come. Something else.

Her face crumpled. Shame, hot and immediate, flooded her features. She squeezed her eyes shut, turning her face away from him.

Sukuna understood. The intensity, the deep, unrelenting pressure on her bladder from his pounding… it had been too much. A small, helpless release she couldn’t control.

A low chuckle rumbled in his chest. He reached out, his hand surprisingly gentle as he cupped her cheek, turning her face back to him. She resisted, humiliation in every line of her body.

“Hey,” he said, his voice rough but devoid of its earlier cruelty. “Look at me, brat.”

She reluctantly opened her eyes. They were shiny with unshed tears.

“That?” he said, nodding towards the damp patch. “That’s nothing. That just means I fucked you good. Fucked you so deep and so hard your body forgot all its stupid rules.” He swiped his thumb under her eye, catching a tear. “Nothin’ to be ashamed of. In fact…” He leaned closer, his breath hot on her ear. “Next time, maybe we get you real drunk first. All loose and sloppy. Bet you’d love it even more. Bet you’d let go of everything.”

The proposition hung in the air, dark and enticing. Her shame began to morph, mixed with a flicker of that familiar, daring curiosity.

He finally pushed his sweatpants the rest of the way off and kicked them to the floor. He pulled her against him, her back to his chest, ignoring the wet chill of the sheets. He wrapped a heavy arm around her waist, his hand splaying once more over her lower belly, which was still faintly rounded from the recent, brutal filling.

“Feels different now, huh?” he murmured, his lips against her shoulder. “All claimed. Stuffed full of me.”

She nodded, a small movement. She brought her hand up to cover his, lacing their fingers together over her stomach.

They lay in silence for a while, listening to the sounds of the apartment building: a shouted argument somewhere, a door slamming, the eternal bass thump.

“Could use condoms, I guess,” he said casually, as if discussing the weather. His fingers traced idle circles on her skin. “The fancy ribbed ones or whatever the hell. Wouldn’t change much for me. Still get to feel you.” He paused, his voice dropping to a conspiratorial rumble. “But after… after I’d tie it off. Make you hold it. Then I’d put it right here.” He pinched the soft skin of her lower belly gently. “Just to see. To see how much I filled it up. A little trophy. You’d like that, wouldn’t you? Keepin’ a piece of it inside you twice.”

She trembled against him, but it wasn’t fear. It was a horrifying, thrilling fascination. She nodded again, pressing herself back against him.

He chuckled, the sound vibrating through her. “You’re a sick little thing, Megumi. My sick little thing.”

He held her until her breathing evened out into the shallow rhythms of sleep. He stayed awake longer, staring into the dark, his mind a churn of possession, guilt, and a deep, unshakable certainty. This was their life now. This filthy, beautiful, broken thing they’d made. There was no going back.

The line was gone. They were just falling.

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