I never planned on telling anyone about it, but fuck it, here it goes. My sister Emily and I had always been close, too close maybe, especially after our parents moved away and we shared the old house. She was twenty-four, I was twenty-six, both adults with jobs and lives, but living together kept us tangled in ways that felt normal until they didn't.
One humid summer night we were drinking on the back porch. Beers turned into shots. Emily was in this thin tank top, no bra, nipples pushing against the fabric every time she laughed.
I caught myself staring and she caught me staring back.
"You've been looking at my tits all night," she said, blunt as hell, wiping her mouth with the back of her hand.
"Hard not to when they're right there," I answered, voice low.
She stood up, walked over, and straddled my lap without asking. Her shorts were tiny. I could feel the heat of her pussy through them against my jeans. "Then touch them," she whispered.
My hands went up under her shirt. Her tits were soft and heavy, nipples stiff. I squeezed and she ground down on my cock, which was already rock hard. We didn't kiss at first. It was just raw touching, breathing heavy, the crickets loud around us.
"Fuck, this is wrong," I muttered, but my fingers were already sliding into her shorts, finding her wet slit.
"Shut up and finger me," she said, rocking her hips. I pushed two fingers inside her tight cunt and she moaned loud, head thrown back. She was dripping, clenching around my fingers like she'd been waiting for this.
We ended up on the kitchen floor because the porch felt too exposed. I ripped her shorts off and she yanked my jeans down. My cock sprang out and she grabbed it, stroking hard. "Big brother dick," she said with a dirty little laugh, then took the head in her mouth. Hot, wet suction, tongue swirling, taking me deeper until she gagged and spit ran down my shaft.
I pulled her off, flipped her onto her back, and spread her legs. Her pussy was shaved smooth, lips puffy and shiny. I buried my face there, licking her clit in fast circles while she grabbed my hair and fucked my mouth. "Eat your sister's cunt," she hissed. I did, tongue fucking her hole, sucking her clit until she came hard, thighs shaking around my head, juices all over my chin.
She pushed me onto my back and climbed on. No condom, no hesitation. She sank down on my cock in one slow slide, both of us groaning at how tight and perfect it felt. Her pussy gripped me like a fist. She rode me rough, tits bouncing, ass slapping against my thighs. "Fill me up," she begged. "Come in your little sister."
I grabbed her hips and thrust up hard, pounding into her. The wet sounds were filthy. When I came it was deep, pulsing thick ropes inside her while she clenched and came again, milking every drop.
We didn't stop there. We fucked in the shower, against the wall, her bent over the couch. Morning light found us still going, her on top again, whispering how good it felt to finally have her brother's cock. No guilt in the moment, just sweat and cum and the sound of skin slapping skin.
We kept it going for weeks after that. Every night, sometimes twice. Raw, no protection, her begging for it inside. It was the dirtiest, hottest thing either of us had ever done. Still is.
