I was over at some friends house for a BBQ/swim party last weedend. I went in the house to go to the bathroom but the front bathroom was occupied so i headed for the bathroom in their bedroom as i came up to the door i could hre noises and the door was cracked a little so i looked in and there was my friens fucking like crazy. She was sitting on top of him with her back facing him. I could see everything. I watched his cock slide in and out of her pussy and then i nocticed she had seen me but she didnt say anything. She just smiled at me and rode him harded. After a couple of minute he came and i went back to the front bathroom and jerked off with the iage of her getting fucked. When i went back outside they were both there and she walked over and asked if i liked the show, laughed and walked away.