I was visiting family over the weekend and had dirty thoughts about my sister the entire time.

We were all hanging out at my parents house, and every time she walked by in those tight little shorts she always wears, I couldn't stop staring at her ass. I kept imagining pulling her into my old bedroom, bending her over my childhood bed, and fucking her raw while everyone else was downstairs.

I jerked off twice in the bathroom thinking about her, once after she hugged me and I felt her tits press against my chest, and again at night after she came out of the shower in just a towel. I pictured her on her knees sucking my cock, gagging quietly so no one would hear, then riding me reverse cowgirl while I slapped her ass and called her my secret little slut. It felt so fucking wrong… but that just made me cum even harder.