This mistress could not believe that her boyfriend had the balls to want to fuck her sister. She was so pissed at him that she had to obviously break up with him, but not before she had punished him for it. She did not show him that she was angry and as he knew she was sexually adventurous, he let her tie him and play with his balls. He got shocked when she made it more painful and crushed his balls as well as kicked them.