I never planned on fucking my sister, but once it started there was no stopping it. We were both adults, me at twenty-three and her at twenty-one, living in the same cramped apartment after Mom and Dad moved away. One humid night the power went out and we were drinking cheap wine on the couch in nothing but tank tops and panties. The air felt thick. She kept shifting, her bare thigh brushing mine, and I could smell her skin, sweet and a little sweaty.
"Fuck, it's hot," she muttered, tugging her top lower so her tits almost spilled out. I stared. She caught me and smirked instead of looking away. "You checking out my tits, big sis?"
I laughed it off at first, but my pussy was already getting wet. "They're right there. Hard not to notice."
She leaned closer. "Want to touch them?"
That was all it took. My hand was on her breast before I could think, squeezing the soft flesh, thumb rubbing her hard nipple through the thin cotton. She moaned low and dirty, pushing into my palm. "Yeah, just like that.
Pinch it harder."
I did. She gasped and her hand slid straight between my legs, rubbing my soaked panties. "You're fucking dripping already. Dirty girl."
We didn't bother with slow. I yanked her top off and sucked one nipple into my mouth while my fingers shoved her panties aside and sank into her hot, tight cunt. She was shaved smooth and slick, clenching around two of my fingers like she had been waiting for this. She tugged my panties down and started rubbing my clit in fast circles, whispering, "Fuck your little sister. Make me come on your hand."
I pumped my fingers deeper, curling them against her G-spot while my thumb worked her swollen clit. She came fast and loud, thighs shaking, juices running down my wrist. Before I could catch my breath she pushed me onto my back, spread my legs, and buried her face between them. Her tongue was relentless, licking long stripes from my asshole to my clit, then sucking hard on the swollen bud.
"Goddamn, you taste good," she growled against my pussy. "I've wanted to eat this cunt for years."
She tongue-fucked me until I was grinding on her face, then slid two fingers inside me while she kept licking. I came hard, back arching, cursing and calling her name. She didn't stop. She kept going until I was oversensitive and begging, then flipped me over and spanked my ass before sliding her fingers back into my dripping hole from behind.
We spent the whole night like that. She rode my face while I licked her asshole and fingered her cunt. I sat on her lap and we ground our wet pussies together, clits sliding slick and hot until we both came again. She talked the whole time, filthy and direct.
"Spread your legs wider, sis. Let me see that pink hole."
"Stick your tongue in deeper. Taste how fucking wet you made me."
"Next time I'm gonna fuck you with the handle of that hairbrush while you suck my tits."
By morning we were sore, sticky, and already planning the next round. We kept it going for months. Quickies in the shower, her bending me over the kitchen counter while our parents were on the phone, sixty-nining on the living room floor with the TV on to cover the moans. She loved when I called her my dirty little sister while I fingered her ass and licked her clit at the same time. I loved when she held my head down and made me drink every drop when she squirted.
It was raw and wrong and exactly what we both needed. We never stopped wanting more. Every time one of us walked into the room the other would get wet instantly, knowing we could have each other again whenever we wanted. No guilt, just two grown women who happened to be sisters and couldn't keep their hands, mouths, or cunts off each other.
And we never ran out of new ways to get each other off.
