I'm not sure if she's still there, but Leah at the Stock Exchange Motel (Logan and Arlington) used to insist on a $100 / 1/2hour BJ only visit first before she would take on a FS client. Her BJ's were very good, as I recall...
Just go to the motel, look for the room with the pennant in the window, if the drapes are open, she's there and available. Drapes drawn , she's busy...
At least that's the way it worked a while ago....
Rubin