Yuna knelt beside Mika, looking completely satisfied.
She dipped her finger into the pool of cum on Mika's thigh, taking her time with it. When she brought it to her lips, a small smile played across her face.
"It tastes like spoiled milk," she purred.
She looked at him with wicked eyes. "And now," she said, her voice deliberately loud and cheerful, "it's my turn."
Makoto pulled his cock out, grinning wickedly. "Oh, so bold. Are you going to fuck your own stepbrother in front of her? Not planning to hide it anymore, are you, Yuna?"
Yuna's laugh was sharp and humorless. "Hide it?" Her voice dropped to a dangerous growl. "Honey, the time for hiding is long over."
"She knows," Yuna whispered, her voice raw and broken. Her hot breath tickled his cheek. "She's known from the very beginning."
His eyes sparkled with mischief. "Well, if you want your turn, you can start by helping my cock recover, then."
She crawled toward him, pushed him down onto the floor with fluid grace and unmistakable malice. Without the costume, she was just Yuna, his stepsister, and somehow that made her even more terrifying and beautiful.
When she straddled his hips, her unicorn pajamas made an almost comical contrast to the sinful scene.
She placed her hands on his shoulders, trapping him beneath her.
Then she glanced at Mika, who was slowly pushing herself up with a dazed expression on her face.
"Now," Yuna declared triumphantly, "she is going to watch."
She turned back to Makoto. "And you are going to perform, big bro."
She leaned down until their lips almost touched. "And if I'm not satisfied with your performance, I'll make you lick your own cum off her. All of it!"
Yuna ground her wet, quivering cunt against his crotch. His cock began to recover from its post-coital state, throbbing insistently against her soft flesh.
"It feels... good," he grunted roughly. "So how did it feel, watching me fuck Mika earlier?"
Yuna didn't answer; instead, she lowered herself down onto his erect cock. She hissed as she took him in, her back arching, nails digging into his shoulders.
The fit was familiar and perfect, like coming home.
She rode him slowly at first, her hips moving in lazy circles.
But her eyes told a different story. They stayed locked on Mika, who now sat with her legs tucked beneath her, watching them with fascination, arousal, and something distinctly possessive.
"How did it feel?" Yuna repeated his question breathlessly.
She picked up the pace, her hips moving frantically now. "It felt like I was going to fucking kill her."
Her voice dropped to a broken whisper. "It felt like I was going to tear her pretty little head off."
She leaned down, breathing hotly against his ear. "And then I was going to fuck you on her corpse."
She ground down hard, her walls clenching around him in violent pulses.
"But then, I realized something." A slow, predatory grin spread across her face as she looked at Mika. "It's so much more fun to share."
Makoto chuckled affectionately. "Well, I agree. I wouldn't want my cute little stepsister to become a murderer over my cock."
He pulled Yuna in for a kiss, thrusting his hips upward. When his eyes met Mika's, they held a silent challenge. He winked at her, signaling her to come closer.
Mika crawled forward slowly and deliberately. She was predator and victim and voyeur all at once.
She stopped a few feet away, eyes wide, lips parted, watching them both. Her expression showed a chaos of conflicting emotions that she couldn't quite sort through.
Yuna broke the kiss with a gasp and a guttural moan.
She'd lost herself completely to sensation, paying attention to nothing except the feeling of him inside her, stretching her, filling her up.
Then Mika reached out. Her soft, warm hand found his ankle.
Her fingers traced a path up his calf, to his knee, then his thigh, and stopped at his balls. Her touch sent electricity through him, igniting something new and terrifying and exhilarating.
Yuna's eyes snapped open, then she smiled. Slow, wicked, triumphant.
"Good girl," she whispered, her voice raw. Then she reached out and laced her fingers with Mika's.
Makoto's cock throbbed sharply as he climaxed inside Yuna. He pulled them both in for a kiss.
The kiss was messy, chaotic, and glorious. Limbs tangled with tongues and hair mixed with sweat and spit and cum.
This wasn't about love or even just lust. It was about possession and desperation, all three of them staking their claims on each other in different ways.
Yuna attacked the kiss with furious energy, her teeth scraping his lips, her nails digging into his back. She wanted to consume him, to mark him as hers even as she shared him.
Mika kissed with deliberate grace, her lips soft and warm, her tongue teasing. She savored every moment, already planning how to get more.
They were opposites in every way. Storm meeting calm. Fire meeting ice.
And somehow it worked.
"Delicious," he murmured appreciatively.
When he finally pulled away, they were all breathless with flushed faces and swollen lips.
They looked at each other, silently acknowledging the new dynamic they'd just created. Something terrifying and exhilarating that none of them fully understood yet.
Then they both looked at him.
"So," Yuna growled dangerously. "Who's next?"
Mika smiled knowingly. "I think it's my turn to be the main wife."
Makoto sighed wearily in defeat. "You'll have to spare me, please." His voice was content despite his words.
"My cock will need some time to recover, unlike those hentai protagonists."
He caressed both their cheeks fondly. "Let's go and eat some dinner, and then we can come home for our anime marathon and that sleepover."
Yuna collapsed onto his chest in a boneless heap, letting out a theatrical sigh.
"Fine," she grumbled into his skin. "But you're paying. And I want the expensive sushi."
She lifted her head, eyes glinting wickedly. "And for the record, unlike those hentai heroines, I can go for hours."
Mika giggled softly, the musical sound filling the quiet room. She leaned in to press a chaste kiss to his other cheek.
"Dinner sounds lovely," she said breathlessly. "But..." She looked between Yuna and him, smiling knowingly.
"We should probably take a shower first. All of us. Together." She stood unsteadily and offered Yuna her hand. "To save water, of course."
Makoto grunted noncommittally. "No shower tonight, Mika."
His eyes sparkled with wicked brilliance. "I want to show off two girls who are covered in my marks and my scent as we go for our dinner."
He stood and carefully folded the wrinkled costume on the floor. "But you're free to change into some proper clothes for going out, though."
Mika's cheeks flushed brilliant red. "No shower?" she whispered, caught between embarrassment and a strange thrill.
She brought her hand to her cheek, as if she could still feel his touch. "But... we're sticky."
Yuna threw her head back and laughed sharply. "Oh, I see." A predatory grin spread across her face.
"You want everyone at the restaurant to know exactly what we've been doing."
She stalked over and poked him in the chest, hips swaying. "You want them to smell us. To smell you on us."
Her eyes blazed with possessive, almost manic fire. "You're a disgusting, wonderful, perverted pig, big bro! And I love it."
She turned on her heel. "Fine. But if we're going out smelling like a brothel, we're going to look the part."
She stormed into her room, already planning her outfit.
Mika gave him a shy smile that was almost apologetic. "I... I only brought my sundress. I hope that's... proper enough."
Her voice held just a hint of hope that maybe it wasn't quite proper at all.
A few minutes later, Yuna emerged.
The black mini-dress she wore was so tight it left nothing to imagination, paired with thigh-high boots that made her legs look endless.
Mika stood beside her in her floral sundress, looking sweet and innocent at first glance.
But now, he noticed how the fabric clung to her curves in all the right places, how the hem barely covered her thighs, and how the faint outline of the lace choker still marked her neck.
They stood before him, two beautiful and dangerous sides of the same coin. One dark and obvious, one light and subtle, both equally his.
"Well?" Yuna's voice dropped low and dangerous. "Are you ready to show off your prizes?"