After a long, steamy shower where he'd just finished fucking Ai Hayasaka like an animal against the bathroom tiles, Genji dried off and got dressed without a hint of shame.
Ai followed shortly after, her legs still slightly shaky from the rough pounding he gave her.
She wore her signature cool maid uniform again, composed as ever, but the faint red marks on her neck and thighs said otherwise.
She didn't even fix her hair, just tied it back lazily, the slight flush still lingering on her cheeks as she silently followed behind her young master like the obedient servant she was.
Downstairs at the dining table, Kaguya sat with her eyes shadowed, her expression cold and withdrawn.
Her head was lowered, but her grip on the fork tightened as she picked at her food in silence. Her appetite was gone.
She had heard it. All of it. The moaning, the gasps, the sound of flesh slapping against wet skin echoing from the bathroom upstairs.
Hayasaka hadn't even tried to muffle it. It made something twist in her chest, a strange discomfort she couldn't quite understand, like something had been taken from her.
Something important.
Kaguya's sexual knowledge was virtually zero, thanks to the Shinomiya clan's suffocating education. In her mind, a kiss already meant a lifelong bond.
She believed couples were supposed to hold hands and maybe, just maybe, kiss on the lips when married.
But what her brother and Hayasaka did upstairs… that wasn't kissing. That was something else, something raw, messy, and intimate.
Even if she didn't know what sex was, her instincts screamed that it was wrong. Not wrong in general, just wrong because it wasn't with her.
When her brother finally sat down at the table, fresh and satisfied, Kaguya raised her eyes and spoke without hesitation, her voice steady but her cheeks tinged red.
"Brother," she said. "I want to sleep with you tonight."
There was a brief pause. She glanced at Hayasaka, sitting coolly by the side, expression unreadable.
Then her gaze returned to Genji.
"Is that possible?" she asked plainly.
It wasn't a demand. She didn't have the confidence for that, not when she knew what brother could take from Hayasaka without asking. If he wanted to use Hayasaka, he could do it again, whenever he pleased.
But if he accepted Kaguya's request… then it meant he'd be choosing restraint. And that meant more than words ever could.
That's why she asked. A request, not a challenge.
To her surprise, Genji gave a small nod. "Okay. You can come later."
Kaguya blinked. Then her lips curled into a soft, genuine smile. Her bad mood, that storm cloud hanging over her, vanished like it was never there.
"Thank you, brother," she said with a quiet happiness that almost broke her poker face.
Genji simply nodded again, calm and composed, while Ai Hayasaka sat in silence, her body still aching, her mind unreadable.
They continued their meal, the air heavy with unsaid thoughts, tension, and the lingering scent of sex.
Later that night, the atmosphere was quiet, almost too quiet. Kaguya, dressed in her soft, light-pink pajamas, walked slowly to her brother's room.
The hallway felt colder than usual. Her bare feet made no sound as she hesitated at the door before finally pushing it open.
Inside, Genji lay on his bed, his head resting lazily on a pillow. He wasn't asleep. A half-full glass of red wine was in his hand, the light from the lamp casting shadows over his calm, unreadable face.
Kaguya stood at the door, her fingers clenching the hem of her pajama top.
"Am I bothering you, brother?" she asked, her voice small, uncertain.
If she hadn't come, she knew he would probably be spending the night with Hayasaka.
Yet here he was, accepting her selfish intrusion.
"No… You don't have to worry about that," Genji replied calmly, setting his wine glass on the desk beside the bed. "Come here, Kaguya. Let me hold you. I want to see just how much you've grown."
Blushing hard, she nodded and padded toward him.
Her heart thudded like a drum as she lay beside him on the bed, her back stiff with nerves.
"Brother…" she whispered, eyes darting toward his face.
But the words stopped there. She didn't know what else to say. Her mind was blank, her body hot with nerves.
Genji didn't rush her.
He simply pulled her close, one hand stroking her hair in slow, soothing movements, his touch gentle, patient, offering comfort, or maybe something deeper.
After several quiet seconds, Kaguya exhaled and found the courage to speak. "How long have you… been with Hayasaka?"
"It's recent," he answered quietly. "Not long at all. Why? Are you jealous of your own maid?"
"I… I don't know," she admitted, biting her lip. "I think I'm just being selfish. Willful. We're siblings… I shouldn't be upset that you have someone."
"It's okay to be selfish, Kaguya. You're my sister. My only sister. If you ever want something from me, no matter what it is... I'll give it to you."
He leaned in and kissed her forehead gently, the warmth of his lips lingering on her skin longer than it should have.
As he pulled away to lie back, Kaguya suddenly cupped his face with both hands and kissed him hard.
The kiss was clumsy, uncertain, filled with messy emotions and desperate desire.
Her lips trembled. She didn't know what she was doing. She just didn't want to lose him.
Genji didn't resist. He allowed it, let her kiss him until she finally pulled back, face flushed, breathing uneven.
"I know this is wrong…" she whispered. "But… can you stay with me every night? Just forget about her… at least when you're with me?"
Genji looked at her for a long moment.
Then, with a half-smile, he flicked her forehead. "Only the nights."
"That's more than enough," she breathed, a small smile spreading on her lips. "Can you teach me, brother? I want you to do with me… what you do with Ai. I want to feel that happiness too…"
Genji's gaze turned serious. "Alright. But I don't want you to force yourself. We'll start slow. Something gentle. Close your eyes, sister."
Obediently, she closed them.
He slid behind her and wrapped his arms around her waist.
His chest pressed to her back, and she felt it, his erection, thick and firm, pushing gently against her from behind.
But she didn't move away. Her breath caught, but she didn't protest.
She let it happen, let him hold her tight, let that warm hardness press against her through the thin cloth of her pajamas.
The warmth of it, the pressure, the lewd intimacy, it sent a shiver crawling up her spine.
Genji started slowly humping her from behind, rubbing the bulge of his cock against her ass in slow, grinding motions.
She moaned, soft and breathy, feeling her own body heat up, the arousal hitting her in waves.
Then he yanked his pants down, freeing his cock, fat, veiny, already dripping from the tip and gripped it tight.
He started stroking it against her clothed ass, jerking himself off with her pajama bottoms as the friction made it feel even filthier.
He huffed, breath growing faster as he pumped his cock harder, rubbing the shaft along her covered cheeks until he let out a groan and released.
Thick strands of hot cum painted the back of her pajamas, soaking the fabric and sticking it to her skin.
Still panting, Genji wrapped his arms back around her waist and hugged her again from behind, his cock twitching against her soaked pajama, his breath hot against her ear, as if what just happened was the most natural, intimate thing in the world.
He didn't go further. He just held her. She relaxed in his arms, leaning back, letting her body mold to his, taking in the heat of his skin, the scent of his breath at her ear.
In that quiet darkness, the two of them drifted into a twisted peace, brother and sister tangled in a forbidden embrace.
And in that silence, they both closed their eyes… falling asleep wrapped around each other like lovers.