Good son: tell her you want to have sex with her
From Create Your Own Story
"I already told you! We can´t have sex! I am your mother. I mean... I am flattered that you think I am hot, but we really can´t do it! And it´s really awkward to talk to my son about my sex life! So no more weird questions!" your mother says.
You go back to your room. Seems like your parents have a really weird relationship.