We went away for holiday with a group of friends. One night we all get drunk, and she’s wearing a black dress with nothing underneath. I go to sleep in my room which is across her room and is separated by a thin wall. That night I couldn’t get to sleep then suddenly I hear giggling coming from her room. She had a guy with her and were talking dirty. Soon she goes ‘ I want to fuck the shit out of you’ then I hear all this kissing and not long you can hear the bed creaking very loudly through the wall. That instantly got me hard and wanked off to her getting fucked next door to me. she was trying to be quiet cause she knew I was next door but she couldn’t control herself and started moaning and saying things like ‘oh fuck me’. By now my dick was hard and I started wanking. Hearing her moans and his balls slapping against her pussy was so hot and I came all over myself, it was probably the best wank I ever had. Anyway next morning I woke up and went into their room but soon as I walked out there used condoms outside my room, (maybe she got off at the idea of me being right there), in the kitchen and balcony area and I opened the door to her room and there was another used condom and you could tell they just fucked again. After that the guy told everyone how she was the best fuck of his life and how crazy she’s in bed. I go to say good morning to her and make up had been ruined with cum and she hadn’t bothered to wash up. She then came to hug me and smelled of cum and her body was sticky and her hair had white dry cum in it