A doctor sees a girl arrive for a check-up. She takes off her shirt and the doctor notices a Y on her chest. Surprised, he asks where it comes from.
The girl answers:
- My boyfriend is at Yale, and he is so proud that when we make love, he keeps his sweatshirt.
Later, another girl also comes for a check-up and she has an H-shaped mark on her chest. At the doctor's request, she explains:
- My boyfriend is at Harvard, and he is so proud that when we make love, he keeps his sweatshirt.
Finally, a third girl comes for a check-up and the doctor discovers an M-shaped mark on her chest. He asks her if she does not have a boyfriend at the University of Michigan. The girl, surprised, answers:
- No, but I have a friend at the University of Wisconsin ...