I cannot get a clue on what these mean:
French style, so we got back on the bed, off came the beret, and she spoke to me ever so fluently, with a pearl necklace finish.  
She translated some French
Multiple cups of coffee
Ultimate PSE type
Doing away with the French translator
multi-positioned FS,
(ymmv),

and on these I am trying to figure it out from the context:
DATY   means cunnilingus?
greek   means anal copulation?
russian means tit fucking
GFE - means the ultimate, top of the top experience the customer has ever experienced?
CBJ means blow job with condom?
BBBJ means blow job without condom?

Thanks, guys, for any help you can give me.
What would code be taking a cum shot in the mouth?

I reposted the list, thanks for reminding me. Thirsty told me to do it but it had fled my mind. Here is the answers to your post:

French style with a pearl necklace = blow job with cum on her chest/around her neck

Translated some French = blow job with condom on

Multiple cups of coffee = multiple cums allowed

Ultimate PSE type = PSE is a Porn Star Experience

Doing away with the french translator = blow job without condom

multi-positioned FS = FS is full service or intercourse

YMMV = Your Mileage May Vary

DATY = Dining at the Y = oral on female

greek = anal intercourse

russian = titty fuck

GFE = Girl Friend Experience, forgot it was a service, just like she was your girlfriend

CBJ = covered blow job

bbbj = bare back blow job

Try reading the abbreviations post, many more that you will see around.