Because money. Because bills. Because drugs. Because a human who comes into easy money in a socially unacceptable vocation.
So on and so forth. Make up a reason, because naked people are a *free* per dozen.
Well, you were given bad info, I'm afraid. The contracts they sign are done on the spot and they only pertain to that scene. Unless she has agreed to do a solo the next day (girls do toys) then maybe it may be included in that contract. Soon as she leaves that room she is free to shoot with whomever she wants. Since the majority of them were duped anyway, (hence the 154 million dollar lawsuit) the contract would not likely hold up in court anyway. Being under contract would also mean they would have to actually pay up a hefty chunk (if not all) of said contract upfront. Those pricks were shorting girls left and right. One girl was promised 9000. They gave her 8000. One 3000 and gave her 2000 etc.... This was, of course, right before they parted ways so the girl didn't have a chance to confront them. Some didn't even realize until they were on the flight back. They had an range of reasons why they shorted them. Too many bruises. They had gained weight etc....