Google punting or escort terms/lingo. There's probably a good thread on here because you'll need it to decipher the adverts on Adultwork which will be a string of DFK, OWO, A levels etc.
PSE - Porn Star Experience, in other words raunchy like you are in your own private porn movie with lots of kinky stuff. Eg Rosina, will eat you alive in more ways than one.
GFE / Girl Friend Experience, more kissing and passionate like a real girlfriend but more 'vanilla' without the kinky extras. Eg Angel Yvonne (was Petra)
Or somewhere between the two - Eg Northern Kara (was Gaby plus too many to remember or list)
See the reviews section for more on these three and web links. They are all slim and are among the most popular in the NE and can guarantee won't be a waste - if that's the experience you want.