What is a "Dilemmma"

Two men are having a drink in a bar.

One guys says to the other, "You know, I've never really understood what a dilemma is?"

"Oh?" says his friend, "Let me tell you a story."

"Imagine you wake-up in a bed with two people next to you. To your left is an incredibly beautiful woman willing to do anything you desire, and to your right is a very horny gay man."

"So where's the dilemma?" Replies the first man.

"Well," says his friend, "Which one do you turn your back on?!"