Thought it might be fun to throw a few out there. Not necessarily songs about the hobby (though could be), but that have some element - title, chorus, whatever - applicable to it.
Waiting a long time wondering if she'll show up
Entering and leaving an incall
In session
Driving home from a great GFE date, riding the oxytocin wave
Trying to keep hobby business under wraps
General purpose (really just the title and chorus)