Couples friendly providers... where to find them?

My girlfriend wants a hot woman for her birthday... where should we look for one? It's not a very simple process, it appears!

Aspen entertains couples

Search for reviews by Gimpy, who sometimes hobbies with his wife.

I have a crazy idea. How about you look at providers ads and then pick the most attractive one your gf would like then send a message to that provider and ask if she is into couples. You can then ask that provider more questions to make sure she is a good fit for you. If she isn't a good fit for you then you move on to the next provider. Keep going until you find the one you want.