I have to say that as someone who mongered in NYC until 2016, I was a bit taken aback recently by all these references to BBFS. Even BBBJ was uncommon when I was active there. It certainly happened, but it wasn't the first thing offered and the providers had a very special gift for sneaking a condom on you with their mouths.
I've always saved BB for the wife. For providers, I do everything covered. Simply stated: I creampie the wife only. If I were single it would be a different matter, but as a married man I'd be up shit creek with no paddle if I had to "explain" an STD to her.
As an aside, you may encounter some hostility from female doctors when describing your lifestyle, even in NYC. Especially if you're hetero. That has always been my experience. In the rest of the USA, I've had Christian and devout Muslim doctors give me irritating lectures ("Your life is a lie").
I'm planning to partake again, and I'm hoping I won't have to explain to these girls that I want a simple, run of the mill CBJ (and the stiletto heel of her patent leather red pumps jammed straight up my ASS).
Stay safe.