Honestly, even after this thread, I still don't see whether it's more likely than not that any sex worker would like being referred to as a whore or a dirty whore during sex. At the same time, it would feel awkward for me before or during sex to ask a girl, "Pardon me, but may I call you a whore please?" And/or, "What is your sociological perspective on the use of the vernacular, ie, 'whore', and does it amount to a type of verbal subjugation that is unacceptable to you?"
See? Not cool, bros.
Calling a girl a whore turns me on, though. That's for sure. I just want to be free.