Sayuri Fujimura, 44, lives with her husband and son. We had been married for many years, but we had no sex at all... One day, I saw my son masturbating, and I couldn't forget the scene, so I ended up masturbating alone... Then, my son found us, and although I knew it was wrong, we... Now, when my husband is not around, my son wants me in the kitchen or in the bathroom. I don't want anyone to know about this.