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 3: The Morning After

The first thing Sukuna became aware of was the crushing weight of the silence. It was a different silence than the one in the living room. This was the thick, velvety quiet of the pre-dawn, broken only by the labored rattle of the window AC unit and the distant, metallic hum of the city stirring to life five stories below. The second thing was the heat. A damp, skin-on-skin warmth that had little to do with the room’s temperature.

Megumi was plastered against his side, one slender leg thrown over his thighs, her head a heavy weight on his chest. Her hair smelled like his cheap shampoo and the lingering, intimate scent of their sweat from hours before. He could feel the faint, rapid flutter of her heartbeat against his ribs.

He didn’t open his eyes. He just breathed, letting the reality of her—the tangled sheets, the soreness in his lower back, the dry, ashy taste in his mouth—settle over him. It was a fucked-up peace.

Her hand moved first. Not a startled jolt, but a slow, deliberate slide. Her fingertips, cool and light, traced a path from the center of his chest, down the rigid plane of his abdomen, through the coarse trail of dark hair that led south. She didn’t hesitate. Her small hand closed around him, already half-hard from sleep and her proximity. She gave a slow, testing stroke, her palm soft against his sensitized skin.

A low groan vibrated in his chest. He cracked one eye open, looking down at the top of her head. In the murky grey light leaking around the blinds, he could see the delicate shell of her ear, the curve of her cheek.

“Greedy little thing,” he rumbled, his voice gravelly with sleep. “Sun’s not even up. Can’t even wait for a goddamn coffee, can you?”

In answer, she tilted her head back to look up at him. Her eyes were huge in the dim light, black pools reflecting the faint glow from the power strip on the floor. There was no sleep in them. Only a focused, hungry intent. She increased the pressure of her stroke, her thumb swiping over the head, smearing the bead of moisture that had already gathered.

He swore under his breath. In one fluid, powerful motion, he rolled, pinning her beneath him. The sheets, still damp in patches from their earlier encounter, twisted around their legs. He didn’t bother to free them. He just shoved her thighs apart with his knees, settling his weight between them.

She was already wet. He could feel the slick heat against his skin as he pressed against her. He didn’t prepare her, didn’t tease. There was a raw, unspoken understanding between them now. The memory of how thoroughly he’d opened her up, filled her, was still vivid in both their bodies.

He guided himself into her with a single, deep push.

It was slower than last time. Deeper in its own way, because of the languid, sleep-soft pace. He sank into her until their hips were flush, until he felt that familiar, profound stop deep inside her. A soft, punched-out sound of air escaped her lips, her eyes fluttering shut. Her hands came up to grip his biceps, her fingers biting into the muscle.

“Fuck,” he breathed, staying still, buried to the hilt. He could feel every tiny, involuntary clench of her around him, the frantic flutter of her pulse in her neck. He lowered his head, his mouth hovering just above hers. “Still so tight. Like you’re tryin’ to suck me in deeper.”

He began to move. Not the frantic, punishing rhythm of before, but a slow, almost grinding roll of his hips. Each withdrawal was a taunt, each deep, measured thrust a promise. He watched her face, captivated by the play of sensations. Her brow would furrow with the intensity of the stretch, then smooth into something dreamy and slack as he hit a spot that made her toes curl.

He braced himself on one forearm, using his other hand to trace the line of her jaw, then down the column of her throat, over the sharp line of her collarbone. He pushed the worn-thin fabric of her shirt up, exposing her small, pale breasts. Her nipples were tight, pebbled peaks. He flicked one with his thumb, and her entire body jolted, a fresh gush of wetness welcoming him deeper.

“Sensitive,” he noted, a dark amusement in his tone. He did it again, watching her bite her lower lip, her head thrashing side to side on the pillow. “You like that? Even here, you’re greedy for it.”

He leaned down and took the peak into his mouth, sucking hard, grazing it with his teeth. Her back arched off the bed, a silent cry shaking her frame. Her hips lifted to meet his next thrust, and the change in angle made him see stars. He groaned against her skin.

The pace began to unravel. The slow, deliberate grind fractured into something more urgent, more primal. The wet, rhythmic sound of their joining filled the room, louder than the AC, a starkly intimate counterpoint to the silent city outside. His thrusts became shorter, harder, focused on that deep, claiming place he’d marked as his own last night.

He could feel the tension coiling in her, a spring wound too tight. Her breaths came in short, sharp pants, her nostrils flaring. Her grip on his arms was vicelike. She was mouthing something against his shoulder, a silent, repetitive plea.

“Yeah,” he grunted, driving into her. “Go on. Let go. Squirt for me again. Make a bigger fuckin’ mess of these sheets.”

The command, the visceral memory of her last release—and the shame that followed—seemed to trigger something. Her eyes flew open, wide with a panic that was purely pleasure. She shook her head, a frantic little motion, even as her body betrayed her, tensing, tightening, hurtling towards the edge.

He wouldn’t let her deny it. “Do it,” he snarled, punctuating each word with a deep, jarring thrust. “I want to feel it. I want to see it. Let. It. Go.”

She broke.

It wasn’t a gentle climax. It was a seizure of pleasure that ripped through her, violent and consuming. Her body locked, rigid for one endless second, before it was wracked by shuddering convulsions. A hot, pulsing rush flooded between them, soaking his lower abdomen, the sheets beneath her. It was a cascade, a surrender so complete it left her limp and trembling, her eyes seeing nothing.

He followed her over, his own control shattering. With a final, guttural groan, he pulled out of her clenching heat at the last possible second. His release painted stripes across her belly and the small, flat plane between her breasts, hot and thick.

For a moment, there was only the sound of their ragged breathing. The room smelled intensely of sex, salt, and her unique, musky sweetness.

Sukuna collapsed onto his back, one arm thrown over his eyes. He was spent, utterly drained. He felt her shift beside him, felt the damp, cool patch on the mattress where she lay.

After a minute, he lifted his arm and looked at her. She was staring at the ceiling, her chest still rising and falling rapidly. The evidence of his climax glistened on her skin, a stark, possessive claim in the growing light.

A crude idea, born of the previous night’s dark promise, took shape.

He pushed himself up on an elbow. “Don’t move.”

He swung his legs off the bed and padded, naked, out of the room. He returned a moment later with the half-empty bottle of beer from the living room floor. He took a long swig, the liquid warm and bitter, then set it on the nightstand.

His eyes were on her belly. He reached out and dragged two fingers through the mess he’d made, gathering it. He held his fingers in front of her face.

“Breakfast,” he said, his voice casual, as if offering her toast.

Megumi’s eyes shifted from his face to his fingers. Her expression was unreadable—a mix of post-coital haze, lingering shame from her own release, and that ever-present curiosity. She hesitated for only a second before opening her mouth, her pink tongue darting out tentatively.

He pushed his fingers past her lips. “Clean it up. Every drop. You made the mess, you enjoy the consequences.”

She sucked his fingers clean with a quiet, obedient intensity that sent a fresh, shocking bolt of arousal straight to his groin. Her eyes never left his. When she was done, he pulled his fingers out with a soft pop.

“Good brat,” he murmured, the praise rough but genuine.

He took another swallow of beer, then offered the bottle to her. She pushed herself up, wincing slightly, and took it. She drank, her throat working as she swallowed the warm beer. Some of it dribbled down her chin. He watched the trail with intense focus.

The relative quiet was shattered by the aggressive buzz of Sukuna’s phone on the floor, skittering against the bare wood under a pile of his discarded clothes. He cursed, fishing for it. The screen glared with the name “Uraume” and a time—7:02 AM.

“The fuck do they want,” he muttered, but he swiped to answer, putting it on speaker. “What.”

“Your presence is required at the docks. The shipment from the coast is early. There’s a discrepancy in the count.” The voice on the other end was smooth, androgynous, utterly devoid of inflection.

“Discrepancy?” Sukuna’s voice lost all its sleep-softened edges, turning hard and businesslike. “You mean someone’s got sticky fingers.”

“It would appear so. Your… particular method of inventory is needed.”

“Yeah, fine. Two hours.” He hung up without a goodbye and tossed the phone back into the pile. The fragile, filthy bubble of the morning was punctured. The outside world, with its demands and dangers, came crashing back in.

He looked at Megumi. She had set the beer bottle down and was watching him, her knees drawn up to her chest. She looked very small, and suddenly, very young. The marks on her skin—the love bites on her breasts, the smeared residue on her belly—seemed lurid in the context of the phone call.

“Gotta work,” he said, his voice softer than he intended. He reached out and hooked a finger under her chin. “Don’t give me that look. I’ll be back.”

She nodded, but the mischievous, hungry light from moments before was gone, replaced by a quiet anxiety. She pointed at him, then made a series of quick, sharp gestures he didn’t fully understand—something about being careful, about danger.

He snorted. “I’m always careful. It’s other people who aren’t.” He got out of bed, his body protesting. “Come on. You reek. We both do.”

He didn’t wait for her. He walked out of the bedroom and down the short hall to the bathroom. He heard the soft pad of her feet following.

The bathroom was cramped, tiles cracked, the shower curtain mildewed at the hem. He turned the water on, waiting for it to heat from its usual icy trickle. Steam began to fog the mirror.

When he turned, she was leaning in the doorway, the oversized shirt just barely covering her. She was watching him, that anxious look still in her eyes.

“Get in,” he said, stepping under the spray. The water was barely warm, but it was a shock to his system. He slicked his hair back from his face.

She slipped out of the shirt and joined him. The shower was too small for two, forcing them into close contact. She pressed herself against his chest, her arms winding around his waist, her face buried against his neck. It wasn’t a sexual gesture. It was clingy. Needy.

He let her hold on for a minute, his hands resting on the damp silk of her back. The water sluiced over them, rinsing away the physical evidence of the night and morning, but not the feeling.

“Knock it off,” he finally said, but his hands were gentle as he reached for the bar of soap. He worked up a lather and began to wash her. His motions were brisk, efficient, but covered every inch of her: her back, her shoulders, the dip of her spine. He turned her around, soaping her small breasts, her belly. He knelt, washing her legs, her feet. Then his hands moved between her thighs.

She stiffened, expecting something else. But he just washed her there, too, with a matter-of-fact thoroughness that was, in its own way, more intimate than anything that had come before. He was cleaning his own mess from her. Claiming the aftermath as part of his responsibility.

He stood up, rinsing her off. “Your turn,” he said, handing her the soap.

Her hands were trembling slightly as she took it. She washed his chest, his arms, his back as he turned for her. When she moved to wash him below the waist, he caught her wrist.

“Leave it. I got it.” His voice was tight. He took the soap from her and finished quickly under the spray.

He turned the water off. The sudden silence was filled with the drip from the showerhead and their own breathing. He grabbed a threadbare towel and rubbed it over her head, drying her hair with a rough tenderness before wrapping it around her body. He used another on himself.

Back in the bedroom, he dressed in dark jeans and a black t-shirt that stretched tight across his shoulders. He pulled on his boots, the heavy sound final and ominous. Megumi had put on clean shorts and a tank top. She stood by the bed, twisting the towel in her hands.

He walked over to her, cupping her face. He kissed her, hard and quick. “Don’t do anything stupid. Don’t answer the door. Don’t even look out the fuckin’ window.”

She nodded, her eyes searching his.

He smirked, though it didn’t reach his eyes. “And if you get bored… think about what we talked about. The condom thing. Get yourself all worked up for me. I’ll want a full report when I get back.”

He turned and left, the apartment door closing behind him with a solid, echoing thud.

Megumi stood in the center of the suddenly cavernous silence. The hum of the AC was gone. The only sounds were the dripping faucet in the bathroom and the frantic beating of her own heart. She walked to the living room window, ignoring his command, and peered through a slat in the blinds.

She saw him emerge onto the street below, a powerful, intimidating figure even from five stories up. He didn’t look back. He slid into a sleek, black car idling at the curb—a car she didn’t recognize. It wasn’t his usual beat-up sedan.

The car pulled away and melted into the morning traffic.

She let the blind snap shut. The apartment felt different. It wasn’t just empty. It was charged with his absence, every stale smell and piece of neglect a reminder of him. Her body ached in specific, secret places. Her stomach felt hollow, but not from hunger.

She looked at the couch, the scene of last night’s first transgression. She looked down the hall to the bedroom, to the damp, tangled sheets. The memories were a physical pressure inside her, competing with the new, cold knot of fear that Uraume’s phone call had brought.

He had a world outside this apartment. A world of shipments and discrepancies and “particular methods.” A dangerous world.

She wrapped her arms around herself, his final, vulgar command echoing in her head. It was a tether, a dark promise to cling to. A reason to wait. But as the silence stretched, deepening with every passing minute, the fear began to whisper that some lines, once crossed, led to places even he might not be able to come back from.

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