Don't go. It will end in tears I give you my word.
Yep. Spot on.
Think about it. What would ANY working girl's motivation be for this. It isn't just an illicit thrill, it is leverage.
Let's say she introduces herself to your wife. Before long they are chatting like girls do. They find they are friendly, maybe one has reason to help the other out on something. Before long they have swapped numbers, added on Facebook, and you are royally fucked.
Think I'm being hysterical? Who cares? Why risk even half of it. Her knowing your other half's name or what they look like is risky enough.
Sensible WGs go to certain lengths to put several degrees of separation between themselves and the punter. Sensible punters do too.
If she doesn't, immediately question her long term motives.
Sorry, I love, absolutely love whores. Beautiful creatures, but even I am cautious and I have relatively little at stake.