With the five sisters peeping through the door, her best friend Ryo watching from the bed, and Rin beneath her foot... Nijika didn't know what expression to make. Her only saving grace was that her back was to Ichika.
"You knew I liked you, but you cheated anyway. You need to be punished properly."
Nijika, usually a sweet angel, was talking like a bratty bully. This was the "blackened" persona Rin had scripted for her to create a shocking contrast. In reality, Nijika's eyes were brimming with tears of shame.
"How disgusting. Getting so excited while being stepped on."
Nijika's toes began to press down harder. She had seen how the others did it during the parties; she just hadn't done it herself. Soon, her toes could feel the wetness seeping through the white fabric.
The slightly rough texture of the cotton socks provided Rin with more friction than smooth silk would. Combined with the sight of the "absolute territory" beneath Nijika's skirt... Rin was genuinely very excited.
Nijika followed Rin's earlier instructions, using her foot to rub up and down his shaft, occasionally curling her toes to mimic a hand's grip.
Sssss... Rin hissed through his nose.
Nijika's technique was crude, but the rough cotton on his sensitive glans provided intense stimulation. Seeing Rin's brow furrowed in pleasure as he groaned against his gag, a strange sense of thrill bubbled up in Nijika's heart, surging to her brain and making her shiver.
He didn't lie... this really is stress relief.
Her stiff movements became fluid. Her lips curled into a faint, involuntary smile of pleasure.
She kicked off her socks, letting them fall to the floor. Nijika used her bare feet to feel Rin's heat directly. Her smooth soles made her movements even more lubricated, and her rounded toes teased Rin's nerves perfectly.
Rin's body tensed, his cock twitching upward against her sole. Nijika pressed down harder, as if competing with him.
"Mmmph!" Seeing Nijika getting lost in the moment, Rin groaned to remind her of the script.
!!!!
Nijika snapped back to reality, her face burning. What was I doing!?
But she couldn't stop now. For Ichika's "kink," the show must go on.
Nijika glanced toward the door and raised her chin arrogantly. "You can stop peeping. You don't even have the courage to walk in and watch your own boyfriend?"
The door creaked open, and Ichika walked in looking awkward. "Um..."
"Shut up!" Nijika interrupted her before she could speak. "Nino probably told you already. Hmph... if you want me to keep your secret, you'll do exactly what I say!"
Watching a "furious" Nijika, Ichika hesitated. Fine... she won't listen to reason right now. I'll let her vent.
"All five of you are his girlfriends... Hmph. Fine then. Stay here. Watch as I drain him dry. What are you waiting for? Get to work!"
Nijika ordered the five sisters to masturbate in front of them. This wasn't a sudden whim; it was part of the plan. If they only made Ichika do it, it would be too obvious.
"We... we'll do it. Just... please don't tell Dad!" Miku's voice trembled with natural acting talent, sounding as if she were in total terror.
Miku unbuttoned her uniform, exposing her breasts. Nino, Yotsuba, and Itsuki followed suit, acting as if they were terrified of exposure, their hands reaching into their skirts.
Ichika wanted to say something, but seeing her sisters comply, she had to follow along. Besides, she almost forgot she was supposed to have a cuckold fetish in front of them.
"You even have nipple rings? You used these slutty things to lure him, didn't you? But... it seems he likes my feet more."
The nipple rings actually startled Nijika. She had seen them on rock stars before—earrings, lip rings, nose rings—but she wasn't into that. She only cared about music.
"Let's play a game. If you five don't reach an orgasm before I make him cum, I'll tell Ryo's father everything."
Hearing this, Ichika's hands moved faster. She wasn't worried about Rin—she knew his stamina was legendary. But she was worried about Rin's attitude. Even if Nijika was genuinely angry, she knew Rin wouldn't let her actually tell their father.
Wait... I almost forgot my role! I'm supposed to enjoy being cucked! I need to look scared and horny!
Moreover, Ichika was actually a little scared. If their father found out they were all sharing the same man, it would be the end of the world!
The apartment's soundproofing was terrible. The five sisters leaned against the wall, legs spread, biting their lips to suppress their moans. One hand worked between their legs while the other squeezed their breasts.
Nino and the others were faking the "pleasure" to make the scene realistic for Ichika, but Nijika was oblivious. All her attention was on the heat beneath her soles.
The inexperienced Nijika continued her mechanical rubbing, but the sensation of her tender soles on his hard cock was enough to make Rin's spine tingle.
Eventually, Rin signaled with his eyes. As the sisters arched their backs and reached their peaks, their necks flushed red, Rin let his body relax and stopped holding back.
At Rin's signal, Nijika glanced at them.
"I didn't think you'd be such lightweights~ I'll keep your secret for now." Nijika paused. "But I'm borrowing your room and your boyfriend for a while longer."