eh, the main question is: why would she give you any money?
the reason that prostitutes have pimps is because they need someone to protect them; they need to know that if they have a problem with a customer their pimp will take care of it.
on the other hand, you're in high school; I doubt you really have any sort of "protection" to offer her. To her, it'll seem like she's giving you sixty bucks for pretty much no reason. After all, she's the one selling herself, what exactly are you doing to earn your share?
Figure that out before figuring out how to convince her to have sex with other people for money.