My subjective experience says half the working girls are in it for just the money, a quarter are natural-born nymphs, and the last quarter are a combination of the two.
To find out if they are in the latter two, see how eager they are to cum themselves, and how expressive they are in doing that with body movements, vagina squeezing, and vocals. Fake vocals are too obvious, but you can tell if the loud ones are genuine buy their sheer veracity and timing; on the other hand, there are the long, low moaners too. One WG surprised me with an 'O' moan that continued unabated for at least 30 seconds. Besides the audio, there's pussy tightening or another hint of genuineness being their toes curling into unnatural contortions.
If she's a newbie, it's always highly entertaining to see what camp she falls into.
[
Last edited by hotjac at 15-9-2020 09:54 ]