GFE / PSE - shorthand evolves
It's worth noting, I think, that "GFE" has become shorthand for, at a minimum, BBBJ plus covered FS. Usually LFK is involved. Sometimes DFK. Some also expect "multiple cups" from a GFE experience but not every provider agrees...
"PSE" is, really, GFE plus Anal and, perhaps, the opportunity to get nastier here and there and to really bang the hell out of each orifice if you can.
What is defined somewhat subjectively in this thread has pretty much been reduced to something formulaic.