I'm a 47 year old mother with a 23 year old son who now lives with me. We share a bath with each of us having a door t our bedrooms. One night I went into the bath with the light off and I could see his light on as his door was slightly ajar. I looked in and he was masturbating. He was right inside the door about four feet standing at his computer. What amazed me and had me glued to watching was his cock was so enormous. I had never seen one like that. It had to be 10 or 11 inches and thick. As he jerked off I felt myself getting wet and feeling guilty at the same time. I knew I should turn away but I couldn't. After a few minutes he started I also had never seen a man cum that much. After, I went to my room and masturbated about what I just saw. I watch him at least once a week and masturbate every time. I just don't know what to think about this.