I do not appreciate when folks use words inappropriately resulting later in deminishing of proper usage of word: It is not rape when a prostitute contracts to render services. When the woman agreed to render services and willingly entered into her clients vehicle, that was the binding of a contract in action. I believe the prostitute only cried rape because her client under contract refused to pay for services.
If it were rape, why would a woman ask for money during or after rape? I bet we would not have heard about the case had the man not being stingy and stupid.
If you don't like word-twisting, why are you doing it? And in your case, it's not the "proper usage" that's being diminished, it's the sovereignty of a woman's body, simply because you're feeling judgemental about what she chooses to do with it.
It's not rape to have sex with a prostitute who has agreed to have sex with you and whom you have paid, that's quite true. It IS, however, rape to say, "I don't want to pay" and instead force her to have sex with you for free at knifepoint. There is nothing "contractual" about that, unless you think she told the guy, "Hey, forget the money, how about you just pull a knife instead?"
There is NOTHING "binding" about agreeing to have sex, by the way, and it really disturbs me that you think there is. Women retain the right to change their minds and say no (so do men, btw). There is NEVER a point at which you have a RIGHT to have sexual intercourse with someone.
No prostitute on the planet, no matter how dumb, is going to let the sex proceed before the money is ponied up. And I simply can't imagine a prostitute who would remain willing to have sex after being told that the money isn't coming. So he had sex with her against her will, and I'm pretty sure that's the dictionary definition of "rape".
Where, may I ask, is the evidence that she "asked for money during or after the rape", as you say she did? And no, we never would have heard about this if the man hadn't been stingy and stupid enough to rape her rather than just paying her.