I am a massage therapist and get asked for sex and lots of other things too, which are politely decline. If you don't want to do things clients ask just say no.
If you are facilitating any bookings for another sex worker YOU ARE A PIMP. End of! You are not doing anyone a favour, you are doing it for the cash. you re not looking for friends you're looking for employees.
pimps have a tendency for taking ANY booking, safety and ladies preferences are usually fudged so much, as all they want is cash, cash, cash.