I came home from work late and found my sister Rachel sprawled on the couch in nothing but a thin tank top and panties. She was twenty, I was twenty-three, and we had been living together since our parents moved out of state. The TV was playing some cheap porn, the volume low, and her hand was already down the front of her panties rubbing slow circles.
"Fuck, Jake, don't just stand there," she said without looking up. "Close the door and come here."
I dropped my keys and walked over. My cock was already hard from the sight of her. Rachel pulled her hand out, shiny with her juices, and held her fingers up to my mouth. I sucked them clean without a word. She tasted sweet and dirty at the same time.
"Been watching this shit all afternoon," she muttered, nodding at the screen where some guy was pounding a girl from behind. "Made me so fucking wet thinking about you."
We had crossed the line three months ago after too much beer and a stupid dare. Since then it had become our secret. Amateur as hell, no cameras, just raw fucking whenever we wanted. I yanked her tank top up and sucked on her nipples while she shoved her hand into my jeans and wrapped her fingers around my cock.
"Get it out," she ordered. "I want to suck it before you fuck me."
I stood up and dropped my pants. Rachel slid to her knees on the carpet and took me straight into her mouth, no teasing. She bobbed fast, spit running down my shaft, gagging a little when she pushed too deep. Her eyes watered but she kept going, one hand squeezing my balls.
"Jesus, sis, slow down or I'm gonna blow already," I groaned.
She pulled off with a wet pop.
"Then fuck me. Hard. Like you did last week."
Rachel bent over the arm of the couch, ass up, panties yanked to the side. Her pussy was shaved and glistening. I lined up and slammed in balls-deep in one thrust. She moaned loud and pushed back against me.
"Goddamn, you're tight tonight," I said, gripping her hips and pounding into her. The sound of skin slapping filled the room. Every thrust made her cheeks ripple. I reached around and rubbed her clit hard and fast the way she liked.
Rachel started talking dirty right away. "Yeah, fuck your little sister. Fill that cunt up. Been thinking about your cock all day at work."
I pulled her hair and drove in deeper. She came quick, pussy clenching around me, juices dripping down her thighs. I didn't stop. I flipped her onto her back, hooked her legs over my shoulders, and kept slamming. Her tits bounced with every thrust. She reached down and spread her lips so I could watch my cock disappearing inside her.
"Look at that," she panted. "Big brother dick stretching me open. Amateur as fuck and I love it."
I pulled out, flipped her again, and took her from behind on the floor this time, knees on the rug. She reached back and spread her ass cheeks so I could see everything. I spit on her asshole and rubbed my thumb there while I fucked her pussy. She pushed back harder.
"Do it," she begged. "Put a finger in my ass while you fuck me."
I slid my thumb in and she came again, screaming into the cushion. Her whole body shook. I couldn't hold it. I pulled out, stroked twice, and shot thick ropes across her ass and lower back. She reached back and rubbed it into her skin like lotion.
We stayed like that for a minute, breathing hard. Then Rachel rolled over and grinned. "Round two in the shower?"
I helped her up and we stumbled to the bathroom, already touching again. The water was barely warm before I had her against the tiles, one leg hooked around my waist, sliding back inside her slick pussy. Soap and water made everything slippery. She soaped my cock and stroked it while I fingered her.
This time it was slower but still filthy. She whispered every nasty thought in my ear. "Love how you use me. Love being your secret fuck toy. No one else gets this pussy."
I came inside her this time, deep and hot. She clenched around me and came with a low moan. We washed each other off, then dried and headed to her bedroom.
On the bed she climbed on top, riding me reverse so I could watch her ass bounce. Her hands braced on my thighs, she worked her hips in dirty circles. Every few minutes she would reach down and play with my balls or rub her clit.
"Amateur incest at its finest," she laughed breathlessly. "No script, just us being nasty."
I grabbed her hips and thrust up to meet her until we both came again. She collapsed on my chest, my cock still twitching inside her. We lay there sticky and satisfied.
Later that night we watched the rest of the porn she had started with, but we kept pausing to act out the scenes ourselves. By morning we were sore, marked with hickeys and bite marks, and already planning the next time.
Rachel kissed my shoulder before we finally slept. "Best secret ever," she whispered.
I agreed. Our amateur incest sex stories were just getting started.
