That's actually weird. I don't think I would be able to live with an escort girl.
First of all, I would be really concerned about my health.
Secondly, this intimate bond between two people should be exactly between two people, no more.
Actually, there are different escort girls, the ones that have really expensive "services" are a lot more beautiful and sometimes even smarter. They usually wear expensive clothes and especially underwear. I've used their service when I was living in Amsterdam. They all were too fancy about their appearance, yet the services they provided were much better than the ones I used to receive ordering cheap escorts.