I was asked if I wanted to have a massage girl at my game and that she was actually willing to pay me to work the room. As long as your players will keep the massage person busy you don’t need to pay anything. Most massage people charge $1/minute with a 15 minute minimum. talking to Massage people that work at the casino they pay the casino to 1/2 of what they make (not tips though)
I passed on having the massage person BTW.