He's obviously guilty of rape. It's not like she voluntarily agreed to have sex with him and then after that he refused to pay her. She wanted her money up front, when he refused she said no. After that it was rape at knifepoint.
The woman was a prostitute who contracted to render services to client who turned out to be kinky plus. "... contract with a prostitute for services."
Except in order to have a contract two parties have to come to an agreement, which they obviously didn't. The rapist is not even disputing that they did, he's saying he raped them, but it's ok because she was selling it anyway.
If you dig ditches for a living, and I take you by knifepoint, and force you to dig ditches for me, is that "theft of services"? Of course not, its kidnapping at the very least.
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.