The room was thick with heat. Not from the air, but from the heavy scent of sweat, love, and something rawer—primal. Ai lay flat on her back, her chest heaving, skin flushed and dewed with sweat. Her legs trembled as they wrapped loosely around her brother's waist, her fingers curled into the sheets like she was hanging on for dear life.
And still, he hadn't finished.
They hadn't reached the end.
Shin hovered over her, eyes locked to hers with a fire that hadn't dimmed in the hours they'd spent tangled in one another. His body remained rigid with need, glistening with effort, as if his desire hadn't even begun to wane.
Ai bit her lower lip. She could feel it—how hard he still was inside her, how full she remained from the endless releases he'd poured into her again and again. Her insides were soaked, stretched, and yet, she welcomed him without hesitation.
She loved it.
She loved him.
But now, they were both chasing something deeper.
Final release. Complete surrender.
And it hadn't come yet.
Shin's hand slid beneath her back and lifted her up slightly, tilting her hips just right. Her body jolted.
Ai gasped, eyes wide.
"Shh…" he murmured, his voice husky against her ear. "You'll wake the others."
Her eyes flicked to the others—Rika curled up with Aiko and Yuki, all still lost in slumber. One soft noise, one careless cry, and it would be over.
Ai's heart raced.
Her breath came in short bursts. She nodded shakily and pressed the back of her hand to her lips.
But then he thrust into her.
Hard.
A sharp, perfect angle.
Ai's body arched in a silent scream. Her thighs squeezed around him, her toes curling tight.
I can't… I can't keep quiet if he keeps going like that!
Shin's eyes gleamed as he saw her bite her hand. He leaned in, teeth grazing her throat. "Don't you dare wake them," he whispered darkly. "Or I'll make you scream into the pillow until morning."
Ai whimpered behind her hand.
He moved again—deep, beastly strokes. His pelvis slapped against hers with every thrust, and the sound alone was enough to make her eyes roll back. She twisted her hips slightly, changing the pressure inside—and she nearly came right then.
Shin felt it.
Smirked.
"You like that," he murmured. "You like being taken like this while they sleep right there."
Ai nodded furiously, her mouth open but her voice caught in her throat.
She was close.
So close.
But she didn't want to finish just yet—not without him. She wanted that final, soul-shattering moment together. The one they'd both been chasing.
Shin shifted again, hooking one of her legs over his shoulder this time and pushing even deeper. Ai's back bent, her breasts bouncing lightly with every powerful thrust. Her moans came out in broken, choked gasps as she tried to keep her voice down.
But she couldn't stop trembling.
Couldn't stop clenching around him.
Too deep… too hard… he knows exactly where to hit me…
Her nails raked down his back.
"Onii-chan…" she mouthed, silent but pleading.
He leaned down, taking her mouth with his, muffling the small cry that escaped as she came again—violently, beautifully, her whole body spasming around him.
This time, Shin didn't hold back either.
He groaned into her mouth as he exploded inside her, the final climax slamming into them both like thunder. His hips slammed deep, burying himself fully as he released every last drop. Ai's legs quivered around him, her body locked against his as the heat pooled between them.
They held each other—frozen in that final, breathtaking moment.
Then slowly, breathlessly, they collapsed together.
Ai was panting, her chest rising and falling against his. Her lips were red, bitten. Her eyes dazed with exhaustion and bliss.
"Did we… finally…" she whispered hoarsely.
Shin gave a lazy, smug nod. "Yeah… That was it."
Ai let out a quiet, breathy laugh. "Worth the wait."
Shin smiled, brushing her damp hair back. "You're the only one who can handle it. All of it."
Ai beamed.
"Don't ever stop," she whispered. "No matter how many times…"
"I won't."
He kissed her once more—slow, deep, and filled with all the hunger he'd finally satisfied.
They lay together in silence, bodies tangled, sweat cooling on their skin. The room was quiet again, except for their slowing heartbeats.
The others hadn't stirred.
Ai grinned, burying her face in his chest.
"I didn't wake them…"
Shin chuckled softly. "Barely."
She swatted him playfully, then curled tighter against him.
Wrapped in love. In heat. In the kind of bond that no one else could ever touch.
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END OF CHAPTER : 178 : DON'T WAKE THEM UP... AI!
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