Lucky break: brother caught his sister with her friend and ended up in a threesome

Adam wanted to hang out at home, but his stepsister tried everything she could to get him to go away because her friend was coming to visit her. So what? He had seen her friends before. What was the catch? Without thinking twice, Adam decided to disobey his sister and started spying on her and her friend... and not for nothing. The girls were making out on the bed, and he took out his dick and started jerking off. Well, in short, they caught each other and it all ended in a cool threesome.