This mistress wanted to help this guy jerk off. He was her admirer and she knew that she could not fuck him. She was not even remotely attracted to him. She felt that the best way for her to help him jerk off was to masturbate while he watched. So she took out her dildo and she used it to pleasure herself while he watched and it was too much for him and he jerked off. She also helped him with some jerk off instructions.