sex trafficking

I read another book called Kushiel's Dart by Jacqueline Carey and it is a historical fiction that centers around one woman who works in the Court of the Night-blooming Flowers (she's a very highly trained, well-paid and much respected whore). Their society sort of revolves around the 'teachings' of Kushiel, an angelic disciple of Christ who I think fell to earth after Christ died. I did a little research and I believe Kushiel is the name of a seraphim in Jewish lore, a very sex-oriented seraphim. The children sold into the Court are able to earn their 'marque' which is a full-back tattoo. When they earn enough to complete their 'marque', they are free to work for themselves or retire. It was a very interesting story and it sort of glorifies the sex trade in a historical context.