Before Natalia 'what's her face' wrote the 'tell all' book on her life as an escort, there was a thing called GFE. She seems to think she invented it in 2003 or so.
This was in the late nineties. The owner of the agency I worked for told me I was a Girlfriend Experience because I was friendly and made men feel like they already knew me.
But, now it means something different. Apparently, now it has more to do with bbbj, and kissing, oh, and daty.
Kissing wasn't done back in the nineties and neither was daty. There was always a concern about passing things through body fluids, ya know.
So, the whole definition of GFE really changes with the situation now.
PSE is always exactly what you would think a Porn Star experience would be.