The jealousy was eating me alive.
It wasn't the sharp, hot kind anymore. It had turned slow and heavy, like poison dripping into my veins every single day. Nao's smiles were brighter. Her laughs came easier. And every single one of them belonged to Yuzuru now.
Friday night she told me casually over dinner, "Yuzuru asked me out tomorrow. Like… a real date. Just the two of us."
She said it while stirring miso soup, eyes soft, like she was testing the waters. Like she already knew how I'd react but wanted to hear it anyway.
I smiled so hard my face hurt. "Cool. Have fun."
Inside I was screaming.
---
Saturday evening I followed them.
I know how pathetic that sounds. But I had to see it with my own eyes. I wore a black hoodie and kept my distance, heart hammering so loud I was sure the whole street could hear it. They went to the little outdoor café by the river—the one Nao always said she loved but we never had time to visit because she was always working.
They sat at a corner table under string lights. Yuzuru pulled her chair out like a gentleman. She laughed and touched his arm. He leaned in and whispered something that made her cheeks flush pink.
I hid behind a vending machine like some creep, fists clenched so tight my nails cut into my palms.
He fed her a piece of strawberry shortcake from his fork. She took it with that shy little smile she used to save only for me. When a tiny bit of cream stuck to her lip, he reached over and wiped it with his thumb… then licked it off his own finger while looking straight into her eyes.
My stomach twisted so hard I almost threw up.
They didn't kiss. Not yet. But the way they looked at each other—like the rest of the world had disappeared—felt worse than any kiss.
I left before they did. I couldn't watch anymore.
By the time I got home my blood was boiling and my cock was rock-hard from pure rage. I wanted to break something. I wanted to break him.
Instead I went to Reina.
---
She opened the door wearing nothing but an oversized button-up shirt—probably one of Yuzuru's dad's old ones. The hem barely reached mid-thigh. Her legs were bare, smooth, endless. The top three buttons were open, giving me a perfect view of the deep valley between her heavy tits.
"Haruto," she breathed, surprised but happy. "I wasn't sure you'd come tonight."
"I needed to see you," I said. My voice came out rough.
She didn't ask questions. She just pulled me inside, closed the door, and led me straight to the living room couch—the same couch where we'd made out like animals three days ago.
We talked first. Real talk.
I told her everything I was feeling. Not the revenge part, obviously. Just the fear. How watching Nao slip away made the old loneliness roar back louder than ever. How I was terrified that if she left me, I'd have nothing. No one.
Reina listened like always—quiet, warm, never judging. She sat with her legs tucked under her, one hand gently stroking my thigh the whole time.
"You're not nothing, Haruto," she whispered when I finished. "You're someone I look forward to seeing every single day now. Someone I… think about when I'm alone at night."
Her hand slid higher.
My breath hitched.
She looked up at me through her lashes, cheeks faintly pink. "Can I make you feel better? Just for a little while?"
I nodded, throat dry.
She unbuckled my belt slowly, teasingly, like she was savoring every second. My jeans came down. My boxers followed. My cock sprang out—already painfully hard, veins bulging, tip glistening with precum.
Reina's eyes widened. "Oh my… you're even bigger than I imagined." Her voice had gone husky. "Look at you… leaking already just from talking to me."
She wrapped her soft, warm hand around the base and gave one slow stroke from root to tip. I groaned, hips jerking.
"Shhh," she cooed, leaning in so close I could feel her breath on the head. "Let me take care of you. You've been so tense lately… carrying all that pain by yourself."
She started pumping me—slow, tight, perfect. Her thumb swirled over the sensitive head every time she reached the top, smearing my precum all over until my entire shaft was shiny and slick.
"Does that feel good?" she whispered, eyes locked on mine. "Your best friend's step-mom jerking your cock in his living room… does that make you feel better, baby?"
The filthy words coming out of her gentle mouth made my balls tighten.
"Fuck… Reina-san…"
She smiled, wicked and sweet at the same time. "Call me Reina. Or mommy, if you want." She squeezed harder on the upstroke. "I know you're angry. I know you're scared. Let it all out on me. Use me."
She sped up, twisting her wrist on every stroke, her other hand cupping my balls and rolling them gently. The wet, obscene sound of her hand sliding over my slick cock filled the room—schlick, schlick, schlick.
I was panting. Hips thrusting up into her fist like I couldn't control myself.
She leaned down and let a thick string of spit drip from her lips onto my cock, making everything even wetter. Then she used both hands—stacked, twisting in opposite directions—while looking up at me with those kind, lust-drunk eyes.
"You're so beautiful when you're falling apart," she murmured. "I want to see you cum for me, Haruto. I want to feel you throb and explode all over my hands… all over your best friend's step-mom's fingers."
That was it.
I came with a broken groan, hips bucking wildly. Thick ropes of cum shot out—first one hitting her chin, the next splattering across her chest and the open shirt, painting her tits white. She kept stroking me through every pulse, milking me dry, whispering "good boy… that's it… give me everything…"
When I finally stopped shaking, she brought her cum-covered hand to her mouth and licked a slow stripe across her palm, tasting me.
"Mmm… salty," she said softly, smiling. "Next time… maybe I'll use my mouth."
I stared at her—tits glistening with my cum, lips shiny, eyes warm and gentle even after what she'd just done—and felt that same terrifying warmth spread through my chest again.
This wasn't just revenge anymore.
I liked her. Really liked her. The way she listened. The way she touched me. The way she made the loneliness quiet down for the first time in years.
But I shoved the thought away.
It was still a game.
Just a game.
---
I got home past midnight, legs still shaky.
The apartment was dark.
Nao's room door was closed.
But there were two pairs of shoes in the genkan.
One was Nao's.
The other was Yuzuru's.
And from behind her door I could hear soft laughter… then a quiet moan… then the unmistakable sound of the bed creaking.
He was spending the night.
In my house.
In my sister's bed.
I stood there in the hallway, cum still drying on my stomach under my shirt, heart hammering so hard I thought it would explode.
The game wasn't a game anymore.
It was war.
And I was going to win.
---