"Do you take a bath together?" It has developed into incest when I bathe with mother! Eight hours

"Why don't you take a bath together?" The son of puberty who gets excited at a word of casual mother. Mother who washes her son's body in small bathroom without mother and mother. The number of words decreases every time the body touches each other, and the inside of the mouth dries. When I wash the lower half of the body, I completely erect erect, and begin to embark on the embarrassment of sex. It touches the erect cock, and the sexual desire gets excited, and "mother's body is also washed", and provokes the son.