Two College Coeds From The Midwest ...

... are getting ready for classes Monday morning. The first strips to take a shower and the second notices what appears to be a big "M" just above the first girl's navel so she asks, "What's that?" "Oh this?" says the first, "My boyfriend was here over the weekend and when we make love he likes to wear his college sweatshirt and it sometimes leaves a mark." "Oh. Where does he go, Michigan?" "No, Wisconsin."