Some common abbreviations:
DFK= deep french kissing
OW= oral with condom
OWO=oral without condom
DT=deep throat oral
RO=reverse oral, you on the girl
A=anal sex
FP,FS= full personal, full service (penetrative sex)
HJ=handjob
HE=happy ending, handjob till you cum
CIM=cum in mouth
COB=cum on body, boobies
GFE=girlfriend experience
PSE=pornstar experience
T&T=tie & tease
WS=watersports, pissing
HS=hardsports, shitting
FFM=2 females, 1 male...2 girls on you
MMF=2 males, 1 female...she'll do 2 guys at once
DP=double penetration, she'll literally do 2 guys at once, one in pussy, one in arse.