A girl goes into the doctor's office for a check-up. As she takes off
her blouse, he notices a red "H" on her chest. "How did you get
that mark on your chest?" asks the doctor. "Oh, my boyfriend went to
Harvard and he's so proud of it that he never takes off his Harvard
sweatshirt, even when we make love," she replies.
A couple of days later, another girl comes in for a check-up. As she takes
off her blouse, he notices a blue "Y" on her chest. "How did you get that
mark on you chest?" asks the doctor. "Oh, my boyfriend went to Yale and
he's so proud of it that he never takes off his Yale sweatshirt, even when
we make love," she replies.
A couple of days later, another girl comes in for a check-up. As she
takes off her blouse, he notices a green "M" on her chest. "Do you
have a boyfriend at Michigan?" asks the doctor. "No, but I have a
girlfriend at Wisconsin. Why do you ask?"