Books featuring prostitutes?

Hey world4ch, I'm looking for suggestions of books featuring prostitutes as protagonists or prominant characters. I'm not looking for erotica; I was hoping for something that focuses more on the life experiences (emotional or otherwise) that people who sell sex must go through.

Examples would be Memoirs of a Geisha (understandably not about a prostitute) or Kushiel's Dart (closer to what I'm looking for, but it dealt more with politics and less with sex). Any suggestions? :)

>>8
Actually, I'm not looking for books dealing with women specifically at all. Hell, books about guy-whores would be better, in my opinion. :D

I suppose you could say I'm looking for things dealing with the taboo of prostitution in general, social taboos, how people deal emotionally with selling access to their bodies, etc. A book about an emotional/romantic relationship with a prostitute would be awsome. Stuff like that.