A boss has to interview 4 girls for a secretary position.....He asked the same question to each one of them.

Boss: "A woman normally has lips in 2 different places. What's the difference between the two?

First Girl: "One is hairy, the other isn't. "
Boss: "OK.. good!"

Second Girl: "One can talk but the other can't ".... Boss: "That's better!"

Third Girl: "One is vertical & the other is horizontal" Boss: "Hmm.. clever!"

Last Girl: "One is for me & the other is for my Boss ".
Boss: "You are hired!!!