I find out this morning that my sister is whore...One friend of mine show me a video from yesterday where my sister is on some gang bang party with a lot of boys....I think that I saw about 10 or 15 different boys there and all of them fuck my sister in all of her holes,they cum in her mouth,asshole even a pussy....disgusting!!!!! And I was thinking she is only a teacher in high school who love her boyfriend....and then find out that she is a cheep whore....During the video my cock became hard....I want to join them to fuck her....But I wasnt there...so I decide to go in her bedroom and do some pervert thinks while she was sl..ping.....and I do that....I pee on her,touch her slutty pussy,smell her panties....even I put my cock inside her....at the end I cum in her mouth,kiss her and go out of the room like nothing was happened there....