I have long held the belief that in a free society one owns one's own body. If someone chooses to grant sexual favors in exchange for money, who am I or anyone else to stop them. If I want to sell a kidney, who has they moral right to say I cannot do so, it is MY kidney.

After all if a woman marries a man (or vice versa) because he is wealthy, it is the same thing, no one is arresting "gold diggers" last time I checked.