Chapter 18
The late afternoon sun dipped low over Gohoku University, casting long shadows across the damp campus paths as students trickled out.
Aiko skipped toward Kaito, her bubbly energy spilling over, clingy and bright—"Babe, let's go to your room tonight!"
Her hand brushed his chest, fingers lingering, teasing the fabric of his frayed denim jacket, her lips grazing his ear.
"Missed you today," she whispered, voice husky, advances bold and desperate, craving sex after Riku's abrupt exit earlier.
Kaito's stomach churned, —she's horny, didn't get it—her vanilla scent thick, pressing against his senses.
He forced a smile, shaky and thin—"Got an assignment due, room's a mess"—voice trembling, dodging her intent.
"Tomorrow, I promise," he added, leaving her frustrated, her pout forming as he stepped back.
She stood there, arms crossed, lips pursed, thinking she'd have to satisfy herself with her toys tonight, a faint huff escaping.
They parted, her footsteps fading down the path, Kaito's pulse still racing, a mix of relief and unease swirling in his gut.
Back in his dorm, night settled heavy, shadows pooling in the wrecked space—shattered lamp fragments glinted under the clock's red glow, 8:15 PM.
He paced, sneakers scuffing the floor, his thin frame taut beneath a damp tee, denim jacket tossed aside.
Riku had gone missing from the university after the video Kaito sent—Mika's moans breaking him—but it wasn't enough.
Rage simmered, a dark fire in his soul, revenge feeling good, righteous—if this app's corrupting me, I'll embrace it.
Curiosity gnawed, nerves buzzing—how far can I push this?—the app's power a twisted lure he couldn't resist.
After a quick dinner—warm ramen slurped from a bowl—he grabbed his phone.
He dialed Mika, voice low and steady—"Sweet shadow…"—the code word slipping out, activating her obedience.
"Mika, come here," he commanded, nerves tingling as he waited, the room's silence pressing in around him.
A soft knock broke the quiet, his door creaking open—Mika stood there, dazed, blonde hair loose, framing her flushed face.
Her eyes glassy, blank, she wore a faded sweater and a short skirt, her small frame still, waiting for his will.
"Yes… Kaito…"—her voice droned, flat and submissive, a puppet drawn back to his darkened stage.
His stomach flipped, nervous curiosity peaking—she's here again, damn—and he stepped closer, breath shallow.
"Mika, strip for me," he rasped, voice tight, grabbing his camera—cheap, shaky—pressing record, angling it to hide himself.
She obeyed, hands moving slow, deliberate—sweater lifted over her head, blonde strands tumbling free, wild and tousled.
Her skirt unzipped, dropped to the floor with a soft thud—bra unhooked, small tits bared, pink nipples stiff in the dim light.
Panties slid down her thighs, her shaved cunt gleaming, a faint wet sheen catching the lamplight as she stood bare.
His breath caught, nerves surging—Riku's sister, naked again—the camera steady, capturing her vulnerability.
"Mika, bend over," he commanded, voice rough, setting the camera on his desk, angled to frame her alone.
She complied, leaning forward, hands bracing the bed's edge—ass up, tight and pale, her pussy peeking between her thighs.
He stepped behind her, fingers trembling as he brushed her skin, trailing down—foreplay first—teasing her anal rim.
A soft whimper escaped her—"Ah…"—as he pressed a finger in, slow, testing, her tight hole clenching around him.
His cock throbbed, hard and urgent—nerves buzzing—she's mine—and he pulled back, aligning himself with her cunt.
He thrust in—deep, sudden—her pussy wet, gripping him tight, a sharp moan breaking free—"Ah… Kaito… yes…"
The camera caught her face—horny, twisted, blonde hair swaying as she rocked back, ass jiggling with each thrust.
His hands gripped her hips, nails digging in—nerves flaring—fuck him, he'll see this—thrusting harder, sweat beading.
Her moans sharpened—"Ah… Ah…"—raw and needy, her cunt pulsing, slick coating his shaft as he pounded deeper.
He played with her, one hand slipping around—fingers brushing her clit, swollen and red—rubbing fast as she gasped.
"Ah…!"—her voice cracked, thighs trembling, her ass tightening as he stretched her anal with a second finger.
Her pussy clenched hard, juices dripping—she's too tight—his cock slamming her core, balls slapping her skin.
The room filled with wet sounds—slick, rhythmic—her moans rising—"Ah… Kaito…"—slutty, lost in his control.
He thrust faster, nerves and curiosity a wild mix—this'll break him—her body quaking, blonde hair matting to her neck.
She came—sharp, sudden—"Ah…!"—cunt pulsing, gushing slick over him, her ass clenching around his fingers.
He followed, silent, hot spurts filling her deep—kept off-screen—breath heaving as she slumped, covered in his cum.
Her thighs glistened, his seed leaking slow, dripping to the floor—Riku's sister, mine—satisfaction flickering dark.
"Mika, say this," he ordered, voice low, grabbing the camera again—recording as she straightened, dazed and spent.
"I'm Mika Sato, Riku Sato's sister—a bad, dirty girl who loves sex, sucking cock—hi, big bro, look what you've turned your little sister into!"
Her voice purred, slutty and grinning, eyes glassy but her grin forced by his command, a twisted performance.
His nervous curiosity peaked—this'll definitely break him—satisfaction surging as he stopped the recording.
He sent it to his laptop, fingers shaky—editing quick to strip his voice, his name from her moans—"Ah… Ah…"—leaving her alone.
"Wait for it, Riku," he muttered, grin eerie, dark—you're gonna get another surprise—the thrill sinking deep.
Mika dressed herself, emotionless, mechanical—wiping cum with tissues, sweater slipping back over her small frame.
Her skirt zipped up, bra and panties on—face blank as she cleaned, his command fading, leaving her a shell.
He watched, nerves buzzing—it's done—the video ready, a weapon honed, his corruption a choice he'd embraced.