What does that even mean? There's 100's of fetishes out there. When a provider says they're fetish friendly, does that mean you have to ask? Maybe I'm just naive and it means Greek.
I'd think if you're into something specific like getting pegged by Cookie Monster while a Circus midget shits on your chest.
You're best bet would be to just ask.
IMO services have to be discussed. Which is something I don't do. Although other providers may be comfortable discussing xyz services
With carefully executed research, it is glaringly apparent who proclaims "fetish friendly" for the purpose of using buzz words and who is well versed in catering to seekers of fetish and kink related experiences. (Not that there is anything wrong with being new to BDSM and just starting out with one's kinky journey.) "Fetish friendly" isn't only limited to Greek and for some may not even include anal penetration at all. Nor does it only refer to those who are into the most taboo or extreme manifestations of BDSM.
For a fine selection of kinky escorts who offer captivating, highly executed, and well curated alternative sensuality encounters, check out Behind the Red Door. In terms of local companions or those who visit New Orleans often, there is Lily Kat Wood, Dallas Rain, and moi! And of course, the Another Realm board has beaucoup fascinating topics.
p.s. puhlease do not contact a provider and assume it's okay to ask direct and explicit "do you do [blah blah blah]" questions about specific services. In my opinion, the only time that is okay is if a provider expresses comfort with that line of questioning.
Fetish friendly means you can shit on her chest, unless she specifys otherwise in clinical detail beforehand. Hopefully she isn't late. Eat Mexican food for best results....so I've heard.