I used to get this at a MP in Richmond a long time ago. The place no longer exist so don't ask for a name lol
The way it came to it was
It was a regit massage place where both female and male customers were welcomed and the place didn't do extras.
I used to bring my wallet with lots of $20s in it, into the massage room (they had a separate shower/locker area).
I liked the lady for her massage service even tho almost no teasing to the boys and I tipped her well for the service.
One day, I got a hard-on from her massaging my inner thigh and I just grabbed my hard member and started playing with it. She played along with it that day and I tipped her for it.
Next day I went back and suggested a BJ. And so on.
It went from a great massage < HJ < BJ < CIM. Never got to FS nor I wanted to at that time.
The place was very frown upon extras but girls needed a little more than $10/$20 tip they get from massage.
I think it worked out because
1. The place didn't allow extras
2. I was being nice and regular to this 1 girl
3. She knew I was willing to tip a generous amount (yet I think it was more than fair) for her service.
Funny thing is ... at many MPs where extras are allowed and encouraged, we get robbed for extra services (20 to take this off, another 20 to take this off, extra 40 to touch this, etc.)
This might not be an answer OP is looking for but a story you might want to invest a bit of time and patience in.
Good luck