One of the best meets I ever had was with a lady only in the business for a short time between more conventional jobs. Said she was a financial advisor.
Anyway, money was only talked about in very basic terms, what the hourly rate was. Agreed and no further mention. Arrived at her house and she wanted a chat before the main event, fine by me. She was very happy to talk about services, what I wanted etc. I offered her the money after being in the house for a couple of mins, she said "that's ok, pay me later".
Offered again when we went to her bedroom (not a punting room, her actual bedroom), again "pay me later". OK.
Did the deed, was about to leave and still wanted to pay her. I wasn't trying to get a freebie. "Wait till I leave the room and leave it on the dressing table" she said, "the money makes me feel like a whore". So left it I did.
A great punt with a sexy lady. She disappeared from AW a few weeks later never to return.