We were both home from college for the summer, two grown women sharing the same old bedroom like when we were kids, except now everything felt charged and wrong in the best way. I was twenty-one, she was twenty-one, twins who had always been too close. The first night back, the house was quiet and our parents were asleep downstairs. She climbed into my bed like it was nothing, but her hand slid under my tank top right away.
"Fuck, your tits are bigger than last summer," she whispered, squeezing one hard. Her fingers pinched my nipple and I bit my lip to stay quiet. I rolled onto my back and spread my legs so she could get between them. We didn't talk about it being sisters or how fucked up it was. We just did it.
She yanked my shorts off and buried her face in my pussy without any warm-up. Her tongue went straight for my clit, licking fast and sloppy the way I liked. I grabbed her hair and ground against her mouth. "Yeah, eat that cunt, sis," I hissed. She moaned into me and shoved two fingers inside, pumping hard. I came in under a minute, biting my pillow so I wouldn't scream.
We switched fast. I pushed her onto her back and sucked on her tits while I fingered her. She was already soaked. "You always get this wet for your sister?" I asked, curling my fingers up to hit that spot. She nodded, eyes half-closed, hips bucking. I added a third finger and fucked her rough until she came, thighs shaking around my wrist.
After that first night we stopped pretending we were just cuddling. Every chance we got we were on each other. Morning showers turned into her pinning me against the tiles and eating me out while hot water ran over us. Afternoons on the couch with the TV on loud so our parents wouldn't hear the wet sounds of her fingers slamming into me. Nights were the best. She'd wait until the lights went out, then climb on top and grind her pussy against mine, clit to clit, both of us whispering filthy shit.
"Remember when we used to share this bed and I wanted to touch you so bad?" she said one night, riding me slow and deep. "Now I get to fuck you whenever I want." I reached up and pinched both her nipples hard. She gasped and moved faster. We came together, messy and loud enough that I was sure someone would hear, but nobody did.
One weekend our parents went out of town. We had the house to ourselves. We didn't leave the bedroom for two days. She tied my wrists to the headboard with a scarf and spent an hour licking every inch of me, refusing to let me come until I begged. When she finally let me, I squirted all over her face and she licked it up like it was candy. Then she made me return the favor, sitting on my face and grinding until she flooded my mouth.
We tried everything. She bent me over the kitchen table and fucked me with the handle of a wooden spoon until I was dripping down my thighs. I fingered her ass while she came on my tongue. We watched each other masturbate from across the room, talking dirty the whole time. "Look at your sister's cunt," she'd say, spreading herself open. "You want to taste it again?" By the end of the weekend we were sore and marked up with hickeys in places we had to hide.
When summer ended we went back to school, but we kept texting. Pictures, videos, voice notes of us getting off while saying each other's names. We made plans for the next break. Same room. Same bed. Same raw, secret fucking that nobody else could ever know about.
It was wrong. It was hot as hell. And we weren't stopping.
