Joke

A doctor is at a bar one night and notices a young lady at the counter, he approaches her and says "Hello there miss, pardon my intrusion but I was curious to know if someone were to pay you a million dollars to sleep with them, would you?" The young lady smiles and says "That's a lot of money, of course I would." The doctor smiles and says "That's interesting, but what if someone were to pay you 5 dollars to sleep with them, would you?" The young lady says "What are you joking? That's no money at all, Of course I wouldn't, what do you think I am?" The Doctor smiles again and says "We already established what you are, now we're trying to establish a price."