Steamy incest mother and child bathing copulation

The other day, I went on a trip to a hot spring to celebrate my son turning 20. As I was having my first drink with my son, who was finally old enough to drink, I felt something strange. I thought I would make a mistake with my son if I continued like this, so I decided to masturbate in the bath to distract myself, but it had the opposite effect. Unable to suppress the heat in my body, I reached into my sleeping son's futon.