He let out a low, appreciative hum, pausing to press his lips to the inside of her thigh. "You're so warm…"
Ai whimpered. "D-Don't say that…"
He didn't listen.
Instead, he slid one finger beneath the edge of her panties, stroking just above the soaked fabric. Ai gasped, her whole body going taut.
"Shh…" he whispered. "Just relax. Let Onii-chan make you feel good…"
She tried to speak, but her voice failed her as his finger gently slid along the outline of her folds, pressing just enough to tease without giving her relief. Her panties clung to her, damp and thin, doing little to hide how soaked she already was. Shin pressed his thumb softly against her slit, watching the way her legs twitched, her thighs trembling with the effort to keep still.
"A-Ah… it's… it's too much…" she breathed.
"You're close already," he murmured, not asking—just stating, his voice deep and husky.
She nodded desperately, her hands now gripping the pillow above her head.
Then, slowly, Shin pulled her panties aside—sliding it down her thighs—exposing her glistening folds to the open air. Ai gasped, her whole face burning as she tried to close her legs, but he gently held them open.
"You're beautiful here, too," he whispered.
And then his fingers slid in.
Ai cried out, back arching off the bed as two of his fingers moved with practiced care, stroking along her inner walls while his thumb circled her swollen bud. All the teasing, the sucking, the heat building deep inside her—it all crashed forward in a tidal wave of sensation.
Her moans came louder now, no longer restrained.
"Ahh—Onii-chan! I—! I…!"
Shin leaned back up, lips finding her peak again while his fingers never stopped moving. His mouth closed around her nipple, tongue flicking fast, wet, hot, perfectly in sync with his fingers below.
Ai couldn't hold it in anymore. Her body tensed, her legs kicked slightly against the bed, and then—she broke.
Her climax hit hard and sudden, her hips jerking as she let out a cry that echoed off the walls.
"AH—Nnnn…! Onii-chan!"
Her folds clenched tightly around his fingers, her chest pressing into his mouth, her entire body trembling in waves. Shin slowed his pace but didn't stop until she was done, her voice reduced to soft, broken gasps and her legs twitching slightly from the aftershocks.
Finally, he pulled back, licking her peak gently one last time before resting his forehead against her chest. Ai's arms instinctively wrapped around him, hugging him close, her breath slowly returning to normal.
Shin smiled softly against her skin.
"You came so hard," he whispered, kissing her collarbone. "You did so good, Ai."
"…Onii-chan…" she whispered, voice barely audible, "I feel like I'm floating…"
He pulled the blanket over the two of them and nuzzled close to her ear.
"Then let me hold you down, so you don't float away."
Ai giggled weakly, still catching her breath—but her heart was full.
And she didn't want to be anywhere else but right there—in his arms.
Shin exhaled a shaky breath and brushed his lips over Ai's temple, her body still trembling faintly in his arms. But despite the warmth wrapped around him, something stirred below—a throbbing ache left unresolved. He shifted slightly.
"Seriously… you're so unfair," he murmured, voice low and slightly strained.
Ai blinked, lifting her head from his chest, her lashes still wet. "Unfair?" Her voice wavered, small and unsure. "Did I… do something wrong?"
She sat up slowly, her eyes searching his face, then trailing downward.
And then she saw it—his pajama pants tented, strained with no effort to hide the hardness beneath. Her eyes widened slightly, and a wave of guilt washed over her.
"I-I didn't mean to…" she whispered, her face flushing crimson. "I was only thinking about myself, wasn't I…?"
"Hey, it's not that serious—" Shin tried to reassure, but Ai shook her head, tears brimming again.
"I'm so selfish," she sniffled. "You made me feel so good, and I just… I didn't even think—" Her voice cracked. "I should've made you feel good too."
Shin reached up, cupping her cheek gently, his thumb brushing away a tear. "Ai, you don't have to cry about this… I mean, yeah, I'm aching a little here, but I didn't do all that expecting something in return."
She looked away, her lower lip trembling. "But I want to make it better. Tell me what I can do…"
He chuckled softly, brushing her hair back. "Maybe just your hand?" he teased, only half-serious.
Ai looked up, earnest. "...Can I use my mouth instead?"
He froze for a second. "Are you sure?" His voice lowered, tinged with disbelief.
She nodded slowly, cheeks pink but eyes determined. "You made me feel incredible, Shin. I want to make you feel the same. It's only fair."
A beat passed. Then she gently pushed at his shoulder.
"Lie back," she whispered. "Let me take care of you."
Shin obeyed silently, settling back against the pillows as Ai knelt beside him. Her fingers trembled as they touched the edge of his waistband, hesitating for a breath, then slowly tugging them down. As the fabric slipped past his hips, his arousal sprang free—thick, flushed, and straining.
Ai's eyes widened a bit, but there was awe in her gaze, not fear. "You're… always like this?" she whispered. "It's like… every time I see you, I get flustered all over again…"
Her fingers wrapped around him gently, carefully, and Shin inhaled through his teeth, muscles tensing beneath her touch.
"You okay?" she asked softly.
"…Yeah," he breathed. "Better than okay."
She leaned down, brushing a soft kiss to his stomach first, then trailing lower, her warm breath making him twitch in anticipation. She kissed the tip gently, reverently—then paused, glancing up.
"Just relax," she whispered. "Leave everything to me."
Ai took a soft breath and leaned in closer. Shin's body tensed under her, chest slowly rising and falling as he stared at the ceiling, unsure where to place his hands. Her lips brushed him lightly again—barely a touch—and she heard his breath hitch. The sound made her heart flutter.
She was nervous, of course. But more than that, she was determined.
This wasn't just about physical relief. It was about something deeper—sharing something with him. Giving back. Making sure he felt seen, cared for, loved in her own quiet, reverent way.
Her hand moved in slow, smooth motions while she kissed along his lower stomach, planting small, feather-light kisses. Every time Shin let out a low breath or a strained sigh, Ai felt a quiet spark of satisfaction. She liked hearing him like this. She liked being the cause.
Shin shifted a little, covering his eyes with his arm. "You're too good to me," he muttered.
"Don't hide your face," Ai said gently, stroking him again with one hand while steadying herself with the other. "I want to see your eyes."
He peeked down at her, lips parted, his gaze hazy and vulnerable. Their eyes met, and a slow smile curled on Ai's lips.
"I love seeing you like this," she whispered. "Breathless and warm and… happy."
He couldn't help but chuckle faintly, though it broke into a shaky sigh when she leaned down again. She kissed him more confidently this time—just once, soft and lingering. Then her tongue gently traced a path, and Shin groaned, low in his throat, gripping the sheets with one hand.
"Ai…" he murmured, voice thick. "You don't have to go this far…"
"I want to," she said between slow movements. "Please… let me."
He couldn't deny her. Not when she looked at him like that—not with those teary, devoted eyes and trembling lips, wanting nothing more than to make up for what she believed was a sin. She was already forgiven in his heart, but he knew words wouldn't be enough to convince her. So, he let her give what she needed to give.
Her pace was slow, tender. She didn't rush. She took her time, as if savoring each reaction he made. And Shin—ever the composed one—could only surrender, barely able to keep himself together. Every soft sound from him, every whispered gasp or buck of his hips, was encouragement enough for Ai to keep going, feeling his heartbeat in every twitch and throb under her palm and lips.
She paused once to look up again, brushing hair behind her ear.
"Am I doing okay?" she asked quietly.
He gave her a half-laugh, half-moan. "Ai… you're perfect…"
Her heart skipped. She nodded, cheeks pink but smiling, then leaned back down again. Her fingers still moved in rhythm, and with each passing moment, she could feel the tension building in him—his muscles tightening, his hands gripping the sheets harder.
"Ai—" he whispered, barely holding himself back. "I'm close…"
She didn't stop. Instead, she closed her eyes and gave one last soft kiss, then kept going with quiet, reverent care until—
Shin groaned low and deep, his back arching slightly as the tension broke in a rush. Ai felt the release, the warmth, the tremble of his entire body, and held him through it, her motions gradually slowing.
And then, silence.
For a long moment, all that could be heard was the sound of Shin's breathing—rough and uneven—and the faint ticking of the wall clock.
Ai pulled back slowly, her cheeks glowing red, her lips a little wet. She wiped her mouth discreetly and looked at him shyly. "Better…?"
Shin looked at her like she was a miracle. He didn't even try to hide how much she meant to him in that moment.
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END OF CHAPTER : 46 : CLIMAXING!
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