In the hot summer, a certain change happened to my son, who was silently studying at home.When I looked at my mother, Hitomi, who was sprinkling water in the garden, I couldn't stop feeling frustrated, and I was worried about his crotch swelling.While looking at her mother many times at home, the son indulges in her masturbation while looking at her mother.However, the son who has been seen by her mother masturbating becomes rough.Unable to hide her bewilderment at her son's transformation, Hitomi consults her homeroom teacher, who visits her home, about what happened...