Is it some kind of cause or effect or is it just luck? - A son who decided to watch his favorite AV with his mother. - My son gets an erection whether he likes it or not. - My mother can't calm down while watching this and the AV screen. - Motherhood trumps reason, and a mother crosses the line while telling herself, ``You...don't you want to have sex right now?'' It's for the sake of her son. - "My mother is now a woman."