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faustiantales · 8 months ago

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𝖑𝖆𝖙𝖊 𝖓𝖎𝖌𝖍𝖙 𝖇𝖗𝖊𝖆𝖐

Dark Descent: Shuntaro Chishiya X fem/afab!Reader

Twisted Truths: incest, cunnilingus, fingering, vaginal penetration, squirting, creampie, pet names

Synopsis: As Shuntaro was studying late in the night, a certain person came in search of his help. And that person is none other than his sweet, little sister.

Shadows Lengthen: 1.8k words

"Oniichan..."

A needy whimper filled the blonde man's ears, pausing his study to glance at the person who entered his room in the middle of the night. There, standing by the entrance was his beloved little sister. Her face was scrunched up in dissatisfaction, a frown settled on her lips and her eyebrows creased slightly.

Shuntaro turned his swivel chair to face her, dropping his reading glasses on the desk. "Come here."

Right away, the girl waddled to her older brother. As if on instinct, she climbed on top of him on the chair, legs on either side as she sat on his lap, facing him. The man's lips curved up, resting his hands on her hips while staring up at her.

"What's the matter, sweetie?" he cooed, leaning up to plant a short kiss on her lips. It wasn't long before another one followed it. He continued like this for a few more moments, relishing the feeling of his sister's soft skin under his touch as he kissed her.

Once she pulled away, he stared back at her with an expectant expression. She looked down at him, still pouting, but her eyes had softened from their initial irritation. "I'm wet and tingly."

"Is that so?" he hummed, the corner of his eyes crinkled up with amusement. "And what does this have anything to do with me?"

It took only a split second for Shuntaro to catch a glimpse of his sister's reddening cheeks. His expression shifted to be one of delight, and he let out a chuckle. With a swift movement, his fingers lifted the white nightdress that covered her lower half. And just like she said, her underwear was stained with wetness that can barely seen in the dim lighting of the room.

He chuckled again at the sight, letting his hand drift down her sides to rest on the exposed expanse of her stomach. She blushed harder, her eyes widening slightly when Shuntaro's hand trailed lower. Then, just as she had expected, his slender digits pressed against her core, feeling the wetness against the fabric.

"Onii...chan..." she mewled, instinctively pushing against his finger for more friction. That didn't stop his fingers from pressing even harder into the slick wetness between her legs, teasingly rubbing the tip of his index finger inside. She moaned softly, her eyes slipping shut. "Please..."

He smiled smugly at the sound of her beg, knowing full well that he could use that to get her going. When she started begging, it was hard not to comply; she was too beautiful to deny. So Shuntaro did exactly what she asked. Without warning, his fingers slid inside of her, his digit sliding against her slit.

She arched into his hand, a loud groan escaping her throat. Shuntaro couldn't resist the urge to add another finger inside, now massaging the already wet place that made her squirm beneath his fingers.

"Does this feel good to you?" he whispered, moving his hand away from her core to cup her chin. "Are you excited?"

His question seemed to answer her need to climax and she nodded enthusiastically, opening her mouth to let out a high-pitched moan as his fingers slipped deeper. Shuntaro smirked at the sight, his tongue darting out to lick his lips slowly. He leaned forward, capturing her lips with his, letting her taste herself on his tongue. He loved the way she tasted — salty and sweet.

After several minutes of making out with his sister, he broke away. She looked like she was about ready to burst; her breathing was ragged and her eyes were glazed over with lustful desire. Her skin flushed red from her arousal and Shuntaro knew that there would be bruises in the morning. The thought gave him an evil pleasure.

"Good," he murmured in approval, stroking her cheeks. She smiled sleepily at him, leaning her head on his shoulder. "You want more, don't you? How about giving your Oniichan a midnight snack before I indulge myself fully? I need a break from studies, after all."

Regaining her energy, the girl nodded excitedly and jumped off him. She went straight to his bed and prepared pillows. Then, she settled by the edge of the bed, her nightgown hiked up until her bare breast and she removed her wet undergarment, leaving nothing but her pink, fluffy, folds waiting to be devoured. Shuntaro watched fondly as the girl spread her legs open wider, baring her smooth inner thighs to his hungry gaze.

"Such a beautiful thing for me," he marveled, walking closer to inspect her cunt. The traces of slickness left behind on her inner thigh caused a delicious shiver to run through his body, one that made his cock twitch with longing for his little sister to be pleasured.

He knelt in front of her core, inhaling the sweet scent coming from it as his hands caressed her silky soft skin. He leaned forward, kissed her swollen clit, and licked the rim of her vagina before licking his lips clean. He closed his eyes and savored her sweetness, humming contently.

Shuntaro opened his mouth to swallow down the small piece of flesh in his mouth, biting lightly to tease her. He then gently sucked the sensitive area, making sure to leave enough saliva and juices on the surface. The girl bit her lip, allowing him to consume her. She let out a low moan, which spurred Shuntaro to continue.

He continued to play with her until she reached her peak, and then Shuntaro moved on to her clit. This time, he flicked his tongue around her sensitive clit, teasing the tight bud repeatedly until it became so sensitive that it throbbed in response. At some point, Shuntaro's tongue also traveled between her labia and rubbed the swollen flesh in circles, causing her to bite down on her lower lip in pleasure.

"O-oniichan! Gonna cum!" she mewled, arching her back in pure pleasure. Her orgasm came almost immediately, and he grinned.

"Did I please you, precious?" he asked, pulling back slightly and licking the juices coating her rim with satisfaction.

"Mhm," she managed to nod despite heavy breaths, her glazed-over hues still fixated on her older brother's movements.

"I think it's time for the main course."

Shuntaro smirked, his eyes narrowing while he made quick movements to remove his loose pants and underwear. His younger sister watched as his dick was released from its confines and the tip of it glistened in anticipation. She bit her lip, her gaze following the erection, the head glistening in the dim light.

A blush formed on her cheeks as Shuntaro approached her, bending down slightly so that their faces were level. Inhaling deeply, he brushed her lips with his own and began kissing her hungrily, thrusting his tongue deep into her moist mouth to make up for the lack of a proper kiss earlier.

He pushed himself into her slowly, savoring the feel of her warmth. Wanton moans escaped his sister's precious lips, which he devoured with his needy kiss. He kept his rhythm slow as he pumped himself inside his sister, the sounds of their panting filling his dark room. Their tongues danced together feverishly in a sensual dance; soon their breathing grew heavy, but they ignored any discomfort they may have felt at that moment in time.

"So...tight... So...warm... So perfect..." he pulled away for a breather from their passionate kiss, his hips keeping a steady rhythm.

Squelches from their lovemaking reverberated around the room, and the pleasure was building rapidly. The way his dick stretched her insides, the way he fucked her with such force and urgency, Shuntaro had never done something like this with anyone else but always had the best sex with his sister. His cock hardened further and his face scrunched up in pleasure. The longer he buried himself inside of his sister, the faster and deeper he thrust into her, increasing his pace each time.

His fingers curled around her breast and squeezed, bringing forth a soft cry from his sister. He continued to pump his member deep inside of her, the feeling of his hot girth stretching her insides causing her muscles to tighten around him.

Shuntaro continued to fuck her, his mouth moving from her breasts to nip the curve of her neck as his finger worked her nipples while the other one held her hip steady. Her moans turned into whimpers as her fingers gripped the sheets tightly, her nails digging into them. The smell of the sweat clinging to the sheets mingling with the lingering scent of her arousal filled the air.

"C'mere, baby," he ushered, his lips finding their way back to hers. They locked into another steamy make-out session, the older Chishiya gobbling the younger's cries of pleasure, their saliva dripping down their chin.

Soon Shuntaro found a good rhythm, slamming into her and continuing to drive himself home without breaking their kiss. He couldn't help but smirk proudly at the noises she uttered—how she completely melted in his arms and clutched his shoulders desperately, how she cried out when her orgasm hit her, the fact that she couldn't control herself and her voice grew louder.

As he reached his peak, Shuntaro stilled inside her, his cum shooting out rope after rope inside her warm womb. His hand pressed against her lower abdomen as he then rolled his hips to ride out the afterglow, leaving his sister gasping for air at the overstimulation and pleasure.

"A-ah! Oniichan! No more!" she begged, her entire body spasming. But her words came out a little muffled, as she struggled to breathe.

Chuckling softly, he took his hand from her stomach and cupped her cheek, his thumb rubbing her cheekbone tenderly. Shuntaro then bent down and kissed her on the forehead tenderly. Despite wanting to have another round, the blonde man heeded his sister's words. After all, he still needed to resume his studies and the girl needed to return to sleep this late at night.

"Did you enjoy it, sweetheart? That helped with your problem, right?" he cooed softly, pulling out his cock from her wet entrance and watching as the mixture of their cum pooled out beneath her. Shuntaro smirked as he glanced at the stain.

"Mhm..." she breathed dreamily, her eyes fluttering shut as he wiped the sticky liquid from her inner walls. Once again, she rested on the pillows, resting comfortably and closing her eyes. "Thank you...Oniichan... Love you..."

"Rest now, my little sister. I love you too," he whispered tenderly, pressing his lips against her temple affectionately. He gazed lovingly at her before cleaning her up and tucking her in his bed for the night.

📜— Return to the Shadowed Archive

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