Ai lay with her back nestled against Shin's chest, her breath still soft and uneven, lips slightly parted as the sweat cooled across her flushed skin. The room was warm with their heat, the scent of sex clinging to the sheets and their bodies. Shin's arm was draped lazily around her waist, fingers resting just beneath her breast… but they weren't still for long.
"Mmm…" Ai murmured as she felt him shift behind her, his hips giving a slow, playful roll. His length, still buried inside her, stirred the slick warmth between her thighs, coaxing a soft gasp from her lips. "Still hard?" she teased, voice thick with exhaustion and pleasure.
"Can you blame me?" Shin whispered against her ear, his voice low and smug. "You kept squeezing me like you didn't want to let go. I think my body's just being polite."
Ai giggled softly, but it was cut off with a startled yelp as his hand slid up, cupping one of her breasts. His fingers brushed her nipple, already sensitive, and the jolt of stimulation made her entire body twitch.
"O-Onii-Chan…!" she squeaked, her voice jumping. "Don't—ah—not again…"
"But you're so soft like this," he murmured, grinning as he pinched gently and made her squirm. "Still warm… still twitchy…"
"I-I'm not twitchy!"
"You are," he said. "Every time I do this—" he rolled his thumb over her nipple, drawing another delicious gasp from her throat "—you shiver like you want me to start all over again."
Ai groaned, trying to press her thighs together, but he was still snug inside her, locking her in place. His hips gave another lazy thrust, shallow but deep enough to make her gasp. She couldn't stop him. She didn't want to.
"P-pervert Onii-chan…" she breathed.
Shin's grin widened. "That's Daddy Onii-chan to you. I did just fill you up with a baby, didn't I?"
Ai let out a bark of laughter, smacking his thigh behind her without much force. "You're such an idiot!"
"I can say anything," he replied, voice mockingly thoughtful. "Like how your boobs might get bigger when you're carrying our baby. Maybe they're already getting softer…"
As if to test his ridiculous theory, he gave her breast another squeeze, making Ai twitch again and gasp through gritted teeth.
"They're not!" she barked, but her voice broke into a laugh. "Stop playing with them like that!"
"Can't help it," Shin purred, rubbing his nose into her damp hair. "You've got the most perfect little tits, Ai. They're practically begging me to tease them."
She twisted in his arms, half to glare, half to hide her smile, but he held her close, kissing the top of her shoulder.
Ai let her body go slack against him, sighing as she stared at the wall with glassy eyes. "You're lucky I love you…"
He grinned and gave another gentle thrust, making her squeak. "And you love this too."
She bit her lip, trying not to smile, but failed completely. "You're impossible."
"Mmhmm. But I'm your impossible."
"Ughhh…"
They lay there for a moment in the warm, blissful haze, his hand continuing to roll and tug at her sensitive nipple while his hips moved now and then—just enough to tease, to remind her he was still inside, still firm, still ready.
"You really want me pregnant, huh?" Ai muttered, voice teasing but soft. "I can already feel it sticking in there."
"Well...," Shin murmured. "It's mine."
She turned her head slightly, just enough to glare at him over her shoulder. "You're sounding more and more like a crazy breeder every time we do this."
Shin chuckled, the sound deep and lazy as he kissed her shoulder again. "You're not denying it."
Ai hesitated… then grinned mischievously. "Well, maybe I do like the idea of walking into school one day with a little bump under my uniform…"
Shin's eyes lit up. "I knew it."
She giggled. "Just to see the look on everyone's faces when they realize their perfect classmate is a filthy little sister who let her Onii-chan knock her up."
"Now that sounds hot," he growled, giving a firmer thrust, just enough to make her moan and jolt in his arms.
"Pervert…"
"You're worse," he whispered. "You keep clenching down on me every time I say stuff like that. Admit it, Ai. You want me to cum inside you again, don't you?"
"I hate how well you know me," she groaned, hiding her face in the pillow.
"But you love it."
She whined, kicking back gently against his shin. "Then do something about it, Onii-chan…"
He smiled against her neck, kissed her soft skin again, and rolled his hips deeper. She whimpered, writhing in his arms as his hand trailed from her breast down to her tummy.
"Right here," he whispered. "I'm going to make this belly round with our baby. You'll walk the halls of your school glowing and dripping and carrying all my love…"
Ai arched back against him, moaning, her hand grabbing at his wrist. "You talk like a maniac…"
"You make me one," he said.
His pace stayed slow but deep, dragging out her pleasure and keeping her on edge. Every few strokes made her legs tremble, her eyes flutter, her breath catch. And all the while, his hand returned to her breast, pinching, tugging, rolling the nipple between fingers slick with sweat.
"You're so sensitive," he murmured, grinning. "It's like your body wants me to breed you again."
Ai laughed breathlessly, panting as she writhed. "Sh-shut up… you're making me—nngh—crazy again…"
He kissed behind her ear, chuckling darkly. "That's the idea."
And slowly, inch by inch, their bodies started to rock together again. The room echoed with the soft slap of skin against skin, the lewd wet sound of his thrusts, the occasional giggle or gasp as Ai's body trembled anew beneath the pleasure.
"Maybe I should keep you like this," he teased between thrusts, "just a warm, messy little wife under the sheets every night. Stuffed full. Pregnant and pretty and mine."
"You already do keep me like this," Ai groaned, her voice almost delirious. "How many times have we—aaah—done it today…?"
"Not enough," he growled.
She laughed, even as her eyes rolled back slightly, her mouth falling open. "God, Onii-chan… you're gonna make me—ahhh—again…"
"Then say it," he growled. "Say you want my baby again."
Ai whimpered, her entire body shaking. "I want your baby… I want it so bad…"
"Good girl."
With that, he thrust deep and held himself there, pulsing, twitching, filling her with another wave of heat that made her moan and tremble and collapse fully into the sheets.
They lay there together, panting, glowing, spent—but still smiling.
"Now I'm definitely pregnant," Ai murmured, voice loopy and content.
Shin smirked. "Should I start designing the school uniforms for pregnant students?"
"Only if they're cute."
"Everything looks cute on you," he whispered, kissing her shoulder.
"Baka Onii-chan…"
"And you love it."
She did.
And wrapped up warm in his arms, her body still full and his hands still teasing, Ai couldn't wait for the next round.
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END OF CHAPTER : 133 : BAKA ONII-CHAN... AGAIN...
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