As a daughter, I have been having sex with my beloved father without a second thought from the moment my mother left the house. Is it because of an uncontrollable sexual urge, even though I know it's wrong? Is it because I'm an adolescent and don't understand anything and am at the mercy of my beloved father? Did I cross the line when my daughter, who is falling behind her peers when it comes to sex, asked me for advice? Three forbidden father-daughter incestuous videos submitted by the public.