I love fucking a lady while her brother watches! It's my absolute fav...I used to have a girlfriend and her full brother lived with us. After he moved in the sex got real hott. The very first night, as he was sitting on the couch watching tube, me and her were on the other end of the same sectional couch making out like crazy teenagers. I was smacking her ass and pawing all over her. He got all red in the face and glanced over from time to time. As I pushed her dress up, yanked her panties to the side, shoved my fingers in her, she halfway screamed and squirted. I bent over the couch and spanked her real properly, I could tell he was embarrassed but he was helpless to protest or do anything about as he was under our roof, lol At that point I told him, in no uncertain terms, I'm going to pound his sister and he can accept it and watch or if he cant control his emotions or anger, he needs to leave the room. He immediately promised he would behave himself if gets to watch but asked if he can masturbate. I tossed him a bottle of ky that I kept on hand to lube her ass up for anal as I'm pretty hung and like to get little rough. He dropped his sweat pants and we both laughed at his hard but little dicky. lol I manhandled her extra rough and took her over and over while he was stroking himself and messing himself. She said it was hott as fuck and now he's involved constantly. He is NOT allowed to fuck her but sometimes we make him clean her up after.