Never on her, but she has let me do it near her. I remember one year when I came home from college, we were watching a movie together. We were sitting close and I got really hard during the movie. It was visible too. She then told me I could take care of it right there. I pulled my pants down and began jerking off. It was a little awkward at first since I had never done it in front of her, but I was so turned on at that point. I made a mess when I came, which she then helped me clean up. She told me she didn’t care if I jerked off in front of her. She said that it was natural and not to worry about hiding it. I told her she could do it in front of me too, but she just laughed. I’ve always wanted to masturbate with her, but it hasn’t happened yet.