I've been doing it, I don't frequent LI AMPs. This kind of behavior doesn't seem as common in NYC. I may be wrong - I know some girls (not naming names) seem to do it, but at the higher end ones it doesn't seem to be the case. But like I said, I may be wrong or I'm not reading between the lines very well.
Of all the "AMP"s I've been to in the Flushing/Corona/Jackson Heights corridor, none of the girls I've been with offer BBFS, but none of them even offer BBBJ. And they are meticulous about wiping themselves down afterwards
Latinas offer it. Asian girls offer it in Manhattan, In Flushing, in motels in the suburbs. Some even advertise it.
Is it rampant in Manhattan gfe spots? Probably not but some of the girls definitely offer it. Also read Flushing incall ads they offer it. Some girls may be more selective than others. Some may not be. Some people choose to believe these pros are not like that. However enough of them are.