Much as I hate to agree with Sagbag, I think she's right this time.

In Cork half of the escorts registered as independants are from agencies. They make no effort to try to hide it. It doesn't matter, why would it?

It's a known fact that the best way to turn people on is to make them think they're doing something a bit out of the way. A bit of sneakiness, some "immoral" behaviour. That's part of why you have this whole prostitution=wrong thing, the filthier and more sinful it is the more it turns people on sometimes.