One day, my father-in-law came to my house where I live with my husband. I had a fight with my girlfriend's mother-in-law, so she asked me to stay with her, so I couldn't treat her lightly, so I agreed to stay for just one week. A few days later, when I went to my father-in-law's room to do laundry, I saw his crotch bulge even while he was sleeping... It was bigger than my husband, and when I thought that, I was masturbating right there. However, I was unable to capture the scene on my cell phone.