You can figure out whether they're "wham-bam, thank you, sir" without asking about virgin-friendliness. I don't think there is such a thing, actually, as specializing in virginity. You'd probably get the same service from girls who are good with newbies.
One thing virgins may not appreciate is that sex is pretty much sex, especially with a stranger. Unless you really don't know what you're doing, and I mean really, really, as in you don't know which parts go where. Even then, you can have the girl take over without telling her anything.
It's possible a provider will try harder, give you more bang for your buck, if she knows it's your first time. I don't know. Otherwise, you'll probably get the same service picking someone newbie-friendly and letting her know it's your first time with a provider and you're nervous.
Posted By: VOO-doo
Once you've chosen a lady who seems like a fit, then - using non-explicit terms - let her know that this will be your inaugural voyage.
I disagree with the first poster, in that I believe it's essential to mention it before setting up a date (I also disagree with his or guesses as to why providers prefer older men, but that's a different post). First, you can ascertain that she is mature and patient enough to assume the responsibility of showing you a great first experience

Some lower-quality providers might have a get 'em in, get 'em off, get 'em out type of mentality, and you definitely don't want that. Also, if you're open, she'll know to give you more direction or encouragement than she might otherwise... and, you'll feel more comfortable voicing any questions or concerns.
*Modified to say that by 'experienced,' I mean someone who's been in the business for a while, with a long-standing good reputation.
Might want to post an ISO on your local board, and see if anyone replies with specific recommendations.
-- Modified on 9/27/2016 10:07:24 AM