If reading about someone spending time with an escort (prostitute) bothers you, then click to another message.
Anyway, I have a real strong fetish for fur followed closely by my LH fetish. When I first hooked-up with this girl from a local service, she enjoyed wearing furs during our appointments but the first time of two I just played with her hair. She had medium-brown hair that came almost to her waist. One day she noticed that I would react to playing with her hair - or being touched by it, almost as much as the fur. She asked me if I liked her hair, and when I said yes she started to massage me with it. She said that we would have to arrange a special time together, and she would make my hair fantasy cum true.
We got together a few weeks later, and she brought shampoo and conditioner with her, and she proceeded to massage and stroke me with her hair. Just imagine Penny Lynn, wearing a blue fox jacket, stroking you to orgasm. It was a wounderful feeling. Part of the deal was that I had to help wash and dry her hair after.
The best way to approach it is to let her see how much you love her hair and how it excites you. Hey, if it worked in my case...