I really like to spend the night at my girlfriend's house. Since we were students, we used to party together, go to classes, and even had one boyfriend for two. We had a good time. No one was ever shy, we could walk around naked in front of each other. Touch each other's tits and ass. We liked to watch very dirty and raunchy porn movies together in the evenings. One of the evenings, after we watched a porn movie with my dirty friend, I got very horny. The friend decided to go make us dinner. And I stayed horny and with a wet pussy after watching the movie, waiting for her in the room. Just when she came out, I wanted to mess around with myself. In one t-shirt and pink panties that were wet with desire. After exposing my tits, and taking off my panties, I began to quickly masturbate my pussy and moan. A couple more times and I cum with convulsions. Mmm, that felt so good. I hope my friend didn't hear my moans.