There was a knock on my door, I opened it and there was my sister. She had on a very thin long white top, no bra. her t*** seemed bigger and through the material you could make out the darkness and shape of her areolas. She didn’t seem to have on any p****** either. Her blonde hair was tied back in a ponytail and she wore bright red lipstick. I took her hand and led her to my bed, I sat her down on the edge of my bed and sat next to her, my arm going around her shoulder, my other hand resting on her leg. I turned her head so she was facing me and kissed her. She gradually opened her lips and my tongue darted into her mouth. I moved my hand that was on her leg up over her top of the thin material and cupped her t**. I began to play with it and rub her now hardening n*****. Her tongue now explored my mouth and she put one arm around my neck, she pulled me closer, kissing me deeper. I then slid my hand under her top, over her stomach and up to her naked t*** that felt so firm and so smooth. I cupped them, squeezed them, I used my thumb and forefinger and tweaked her hard n******. She was really enjoying what I was doing to her. I stood up, removed my shirt, and took off my jeans and boxers. My c*** stood out hard. My sister had her eyes fixed on it when I asked her to take off her top. She quickly pulled it up over her head and she was naked now. She had done what she knew I liked, her p**** was shaved smooth. I looked into her eyes that were filled with lust, I knew that we shouldn’t do this, but I didn’t care any more, I wanted my sister’s p****. My prick was hard, she told me not to waste time, mom and dad will be home soon. She lay back on the bed, legs open. I positioned myself between her legs, slowly sliding in my c*** until I was deep inside her. I began to f*** her, slowly at first, then deeper and harder. When I speeded up faster, she was crying out for me to f*** her harder. She couldn’t get enough and soon she was having a loud, shaking o*****. I wanted to last longer, but my sister sounded so f****** hot, that I couldn’t. Then with my deep lunges, I came inside her. I felt my sperm shoot out, filling her tiny p**** with it. I collapsed on top of her and kissed her, my prick twitching and throbbing inside her. We rolled onto our sides, kissing each other, I looked at the clock and it was time for each of us to take a quick shower before our mom and dad got home. We showered together, she sucked me off in the shower and she even kept my c*** in her mouth when I came. Boy did that feel good! We were both in our own rooms when our parents got home. I know what I was thinking about lying there on my bed, I wondered if my sister was thinking the same thoughts that I was. She must have been because early the next morning before anyone was up yet, my sister came to my room and gave me another b******.