I can break it down into four simple rules:

1. DFK-  First and foremost there has to be DFK. It just that simple no DFK no GFE.

2. BBBJTC- I never had a girl friend use a condom. Also one way or another task needs to be completed assuming that is desired.  I would take a nice Russian finish assuming oral brought to edge of completion, but for even BBBJ without some type  finish does not cut it me

3.  Provider should really likes sex, like to get off. There need  to be a two way effort. Also I  would expect a GFE to be receptive to dining if that is wanted but not make the guy feel that it is a requirement. Also spare us the bad acting jobs there almost always obvious.

4. Multiples allowed -Non rushed - There should be at least the possibility of seconds if time and  anatomy allow for it. Along the same lines session should not be rushed or provider watching the clock for next appointment.