Rosey, posing thoughtfully in the mirror says to Sandy, "I think I 'm going to see a dietician."
Sandy asked, "Why?"
Rosey answered, "'Cause I need to know once and for all, how many calories are in sperm!"
Thinking a minute, Sandy said, "I really have no clue, but if you are consuming that much of it, no guy is going to care if you are a little chunky!"