There were 3 little girls and they were young so one time they walked into their friend's parents' room and her parents were fucking. So then the girl's mom says "Don't do this until your older."
About 20 years later the mom walks into their house and she hears screaming, moaning, and silence. So she asks the first girl "Why do I hear screaming?" and the girl says "Because you never told us it was going to hurt." So she asks the next girl, "Why do I hear moaning?" and the girl says "Because you never told us it felt so good." Then she asks her daughter, "Why do I hear silence?" The girl says, "Because you taught me not to talk with my mouth full."