B2B?
Body to Body.....
In "Proper" terms it mean the masseuse is naked too and climbs on top of you and uses her (usually oiled-up) body to massage you as opposed to just her hands. Usually involves a tit wank at some point, maybe some kissing, and occasionally some pussy-grinding. On rare occasions it has led to FS (full sex, in case you were wondering!)
....however, for some girls it seems to lose a bit in translation! Sometimes they just strip off (sometimes just topless!), and maybe just rub their tits on you! The worst B2B I've had...she just took her top off, then sat at the end of the bed doing a HE, too far out of reach for me to touch her at all. When I tried asking, she started playing the "me no speak good English" card...although she was fine up to that point!
....actually...no the worst was on Shaftsbury Ave.....she said £100 for full strip off....I was pissed so went ahead, and all she did was strip to her undies, then did the same "no speak English" when I complained she had not fully stripped!
There may be more, but it'll only depress me....