But one time I had to stop a provider from trying to hop on my dick without a condom. It happened years ago up in Wisconsin. I was not able to post a review on the provider because she did not have a website. I have seen a lot of ads with providers offering bbfs. The ads offering it are now more common today. If you do a google/yahoo/bing search you can find them left and right.  A couple of providers told me that guys have asked for it but they would not do it for a variety of reasons:
1. Did not know the guy long enough
2. Unsafe (pregnancy, stds).

I found one site that has a links to a bunch of bbfs discussions on TER. The site has some riddles on it, that if you figure them out, you can figure out who is doing bbfs. Some are well known providers on TER. Others don't want reviews or advertise (they know LE will go after them first). Some of them are very attractive women.

If I find out a provider is doing or has done bbfs I put her on my DNS (Do not see ) list.

the fact of the matter is, it happens, probably quite often but for the reasons others have stated it isn't allowed to be discussed publicly. Some folks have a "hollier than thou" attitude about it, some providers would just rather not let it be known they are open to it because they prefer to do it at their discretion and not have it be expected by every joe they see.

my experience with Porn Stars is that when they explicitly advertise providing PSE service they mean just that. even if they won't say it in an add or the PSE forum on this board. it's really rediculous when  you consider that providers will openly discuss allowing guys to cum in their mouth and swallow, and guys openly discuss eating all types of pussy. why does bbfs continue to be such a taboo?

for me, (and i haven't done it yet) but after having experiencing threesomes with GFE or less providers where there is no real interaction between the ladies and we have to switch condoms with every switch between partners, i'm dying to have a real freeforall porn star threesome with full interaction.

Yes. It happened to me.  I had become fairly friendly with a visiting provider after several visits.  She kidded about it during pre-session chit chat and i ignored it.  the subject came up again in the heat of the moment.   I said  no again---although I have to admit the arguments seemed a bit imbalanced at that moment.   Nevertheless I did say no.

But what is With this "I will tell you if you tell me " thing.  If you have a story tell it or forget it.

both johns and hookers.

The guys lie about doing BBFS because (A) they don't want it to get to other ladies that they are doing BBFS and (B) if they find a lady doing BBFS they dont want the word to spread. A very wise provider told me a long time ago........"If she's doing BBFS with you, she's doing it with others. Don't kid yourself that youre the only one".

I was with a provider I hadn't seen before about 6 weeks ago and we agreed on Greek for our second cup. She put me in the spoon position behind her and started slowly working my hard-on into her ass. I assumed that she had put a condom on me and that I just didn't notice because she was so good at it (she had put a condom on me when we had "normal" sex for our first cup) but when she rolled over into RCG I saw that I was uncovered. If she'd asked me beforehand I would have said hell no, but in that moment I gave in to my hedonist side. I have to admit I loved every minute of it, fucking a hot girl in the ass bareback is pretty much the holy grail, as stupid and risky as it is. She has texted me several times since then but I haven't responded - I don't trust myself not to try to do it again and I don't want to roll those dice a second time. When I asked her afterward if she does that often she said, "I like anal sex sometimes," as if I was only referring to doing Greek, not the fact that it was bareback.

With a high-end, lovely girl from an agency (not the old big 3, the agency is still around). Many people should know the girl. The first pop is with condom, but the second is BBFS. She did mention not pop inside her. She was one of the best, but retired from this business.