The creaking from Nao's room didn't stop.
I stood frozen in the hallway for what felt like hours, listening to every soft moan, every whispered "Yuzuru…", every rhythmic thump of the headboard against the wall. My best friend was fucking my sister in the same bed where she used to hold me during thunderstorms.
And I was hard.
Not from the sounds—those made me want to vomit and kill someone at the same time—but because my body had already decided what it wanted tonight.
Revenge.
Release.
Reina.
I left the apartment without making a sound. 1:43 a.m. I texted Reina one line:
**Haruto:** Can I come over? Right now.
Her reply came in seconds.
**Reina:** Door's unlocked. I'm waiting.
---
She was waiting in the living room wearing only a silk robe the color of midnight. The second I stepped inside she didn't ask questions. She just took my hand and led me straight to her bedroom.
The room smelled like jasmine and warm skin. Moonlight spilled across the king-sized bed. Reina turned to face me, robe slipping open just enough to show the full curve of her heavy breasts and the soft swell of her stomach.
"Haruto…" she whispered, voice already husky. "You look like you're about to break."
"I am," I said.
Then I pushed her onto the bed.
She fell back with a little gasp, robe falling completely open. Her body was perfect—full tits with dark nipples already stiff, thick thighs, and a neatly trimmed patch of hair above her glistening pussy. She looked up at me, eyes wide and trusting and so fucking turned on.
I stripped in seconds. My cock sprang out, angry and leaking, veins pulsing. I crawled over her, pinning her wrists above her head with one hand.
"Tonight I'm not asking," I growled against her ear. "Tonight you're mine. Say it."
"I'm yours," she breathed instantly, hips lifting toward me. "Use me, baby. Take whatever you need."
I didn't tease.
I spread her legs wide, lined up, and slammed into her in one brutal thrust.
"Fuuuuck—!" Reina cried out, back arching, walls clenching around me like a vice. She was soaking wet, hot, perfect. "Haruto—oh my god you're so deep—!"
I didn't give her time to adjust. I fucked her hard and fast, hips snapping like a machine. The wet slap of skin on skin filled the room—filthy, obscene, perfect. Her tits bounced wildly with every thrust. I leaned down and sucked one fat nipple into my mouth, biting just hard enough to make her scream.
"Yes—yes—harder!" she begged, legs wrapping around my waist. "Fuck your best friend's mommy—ruin me—make me forget every other cock I've ever had!"
The dirty talk sent me feral.
I let go of her wrists and grabbed her hips instead, pounding into her so deep my balls slapped against her ass. The bed creaked violently. Her pussy made wet, squelching sounds every time I bottomed out.
"Whose pussy is this now?" I snarled, spanking her ass hard.
"Yours—ahh!—it's yours, Haruto! Only yours!"
I flipped her over suddenly, yanked her ass up, and slammed back in from behind. Doggy style. Primal. I fisted her hair and pulled her head back so I could bite her neck while I railed her.
"Look at you," I growled. "Taking your son's best friend's cock like a desperate slut. You love it, don't you? Love getting fucked in the bed you shared with his dad."
"Yes—fuck yes—I love it!" she sobbed, pushing back against me, ass rippling. "I'm your slut—your dirty little secret—cum inside me—please—fill me up—mark me—!"
I reached around and rubbed her clit in tight circles. Her whole body started shaking.
"I'm gonna cum—Haruto—I'm gonna—!"
She came with a broken scream, pussy spasming and gushing around my cock. Her walls milked me so hard my vision went white.
I buried myself to the hilt and exploded.
Thick, hot ropes of cum flooded her pussy—pulse after pulse—until it was leaking out around my shaft and dripping down her thighs. I kept thrusting through it, grinding deep, forcing every drop inside her.
When I finally pulled out, a thick glob of my cum oozed from her swollen pussy. Reina collapsed onto the bed, trembling, breathing hard, a dazed, blissful smile on her face.
I stared at her—my cum dripping out of her, her body marked by my hands, my teeth, my seed—and something inside my chest cracked wide open.
I started crying.
Not quiet tears. Ugly, shaking sobs that tore out of me like I was breaking apart.
Reina turned instantly, pulling me down into her arms. She held me against her soft, cum-covered breasts, stroking my hair, kissing my forehead.
"Shhh… I've got you," she whispered. "I've got you, baby. Let it out."
I cried harder, face buried between her tits.
"This doesn't feel like fear anymore," I choked out between sobs. "This doesn't feel like I'm just scared of being alone. This… this feels like love. Real love. For the first time in my life."
She froze for a second, then held me tighter.
"I know," she whispered, voice thick. "I feel it too."
---
I got home at 4:17 a.m.
The apartment was silent now.
Yuzuru's shoes were still in the genkan.
I walked past Nao's room on the way to mine and saw it—her door was open a crack. The bed was a mess. Sheets tangled. A used condom wrapper on the floor. Nao's panties tossed over the chair. And on the nightstand… one of Yuzuru's stupid soccer jerseys.
They'd done it.
My sister had given her first time to my best friend while I was busy filling his step-mom with my cum.
I should have been furious.
I should have wanted to burn the world down.
Instead I just felt… empty.
And full.
And terrified.
Because for the first time, the person I was falling in love with wasn't Nao.
It was Reina.
And that changed everything.
---