Yuna stood in the doorway.
She'd changed back into her unicorn pajamas, twin-tails messy again, face clean of all that heavy makeup. She looked like herself. Normal, mostly.
Makoto didn't notice her. The heat consuming him blocked out everything else as he fumbled with his pants and freed his cock.
He rubbed against Mika's wetness, then pushed inside her all at once.
"Damn, you're so fucking tight." His voice came out rough. "Is this your first time, Mika?"
Mika cried out when he entered her.
The sound was sharp and high, caught somewhere between pain and something else entirely.
Her eyes went wide behind those pink contact lenses before fluttering closed. Her neck arched back.
"Yes," she gasped. The word came out broken. "Please... be gentle..."
But her body told a different story. Her walls clenched around him, hot and wet and impossibly tight.
Her hips started moving on their own, finding a slow grinding rhythm to meet his thrusts. She took to it naturally. Too naturally.
Perfect, he thought. She's perfect like this.
Her fingers dug into his shoulders as she ground against him, soft, desperate moans spilling from her lips. That bright pink and blonde wig looked almost surreal against what they were doing.
The contrast made everything feel more intense somehow.
Then a new voice cut through the room, low and dangerous.
"Are you having fun, you two?"
Yuna leaned against the doorway with her arms crossed. No costume now. Just Yuna. His stepsister. Watching him fuck her best friend.
Makoto grunted. "Umm, just wait a second, Yuna."
He didn't stop. Couldn't stop. His hips kept moving, kept thrusting into Mika without any thought of slowing down.
Yuna scoffed. The sound was sharp and humorless. "Oh, you should take your time. Don't mind me!"
"I'm just watching my brother deflower my best friend in our living room. Perfectly normal Saturday afternoon."
She walked to the couch slowly, deliberately. Sat down and crossed her legs. Those ridiculous unicorn slippers looked completely out of place in this scene.
She picked up her phone and her thumbs started flying across the screen at terrifying speed.
"Don't worry," she said, her voice sounding like both a tease and a threat. "I will just live-tweet the whole thing."
But Mika wasn't listening. She'd gone somewhere else entirely, her eyes squeezed shut and head thrown back.
Her moans kept coming, soft and desperate. Nothing existed for her except the feeling of his cock inside her, stretching her, filling her completely.
Then her body seized up. Her back arched and her thighs clamped around his hips as she came.
The orgasm ripped through her in silent, shuddering waves that left her boneless and trembling.
Makoto glanced at Yuna with a wicked glint in his eye. "You came way too fast for your first time, Mika!"
He looked back at the beautiful girl shaking in his arms. "At this rate, no other cock will be able to satisfy you later."
He gripped her hips and started thrusting again.
Mika's eyes snapped open. Something sharp and competitive flashed in those pink depths.
"Who says that I want another cock?" Her voice came out raw and broken.
Her hands found his shoulders again, fingers digging in as she met his renewed assault with surprising intensity.
She learns fast, he thought. Way too fast. Her hips moved with newfound confidence, finding a rhythm that matched his perfectly.
"Faster," she panted. "Harder, please!"
Yuna let out a long, theatrical sigh from the couch. "Oh, for the love of god," she muttered.
But she wasn't looking at her phone anymore. She was watching them both.
Her face showed everything at once. Fury. Jealousy. And something else, something raw and vulnerable that made his chest tight.
Then she stood up and walked over to them slowly. Her hand found Mika's, and their fingers laced together. The gesture felt like both comfort and threat at the same time.
Mika's eyes widened in surprise. But she didn't pull away. Instead, she squeezed Yuna's hand back.
A silent acknowledgment passed between them. Something new and terrifying and exhilarating had just formed between the three of them.
Makoto patted Yuna's head with an appreciative grunt. "That's a good view."
He ran his fingers through her hair. "I'm almost there, Mika. Is today your safe day?"
Mika's head snapped back. A strangled sound caught in her throat.
"No," she gasped. Her eyes went wide with terror and excitement mixed together.
"It's not. But please, don't pull out. I don't want you to..."
The words hung in the air. Simple. Direct. Honest. Irreversible.
Yuna's grip on Mika's hand turned white-knuckled. Her eyes widened in genuine shock for just a moment.
Then a slow, wicked grin spread across her face.
"Good," Yuna whispered. Her voice came out as a triumphant purr.
She leaned close to Makoto's ear, breath hot and sweet. "If she already said so, then you'd better not pull out. And she is going to take every last drop."
Mika's eyes met his. They were desperate. Pleading.
She wants this, he realized. She actually wants this.
The look made his cock throb with sharp insistence. He pushed deep into her and came hard, shooting thick loads of cum inside her.
Mika's whole body seized. She screamed as he flooded her with hot seed.
Her back arched off the floor, and her thighs clamped around him in desperate spasms. Tears leaked from the corners of her closed eyes.
When he finally pulled out, his cum followed in a thick white stream down her pale inner thighs. She rested on the floor, trembling all over.
The wig sat crooked on her head. Her makeup had smeared everywhere. Her chest rose and fell in short, shallow gasps.
"Phew," he panted roughly, and collapsed onto her body. "So, how did it feel? Your first creampie."
She didn't answer him. Like she'd gone somewhere else entirely.
Lost in the overwhelming pleasure and the terrifying reality of what they'd just done.