Family Disgrace-Fool joke

There was a virgin that was going out on a date for the first time and she told her grandmother about it. 
Her grandmother says, "Sit here and let me tell you about those young boys. "He is going to try to kiss you; you are going to like that, but don't let him do that." 
She continued, "He is going to try to feel your breast; you are going to like that, but don't let him do that. He is going to try to put his hand between your legs; you are going to like that, but don't let him do that. 
Then the grandmother said, "But, most importantly, he is going to try to get on top of you and have his way with you. You are going to like that, but don't let him do that. It will disgrace the family." 
With that bit of advice in mind, the granddaughter went on her date and could not wait to tell her grandmother about it. 
The next day she told her grandmother that her date went just as the old lady said. 
She said, "Grandmother, I didn't let him disgrace the family. When he tried, I turned him over, got on top of him and disgraced his family."