As we all know, the time to
NOT ask those types of intimately detailed questions is in the initial contact, before you are properly screened. You'll end up with a click and a dial tone on the other end of the line.
If you do MOST of your own homework ahead of time, through looking at her ads, her web site, other people's reviews, etc., you're going to have a pretty decent idea of what's on the table, so to speak, and what's not.
And remember, just because a lady might provide one type of service for one gentleman doesn't mean she'll do it for anybody. Most important acronym to remember... YMMV.
Once you see a provider and she "gets comfortable" with you, your options may compound exponentially. That comfortability factor may take 5 visits, or it may only take just 5 minutes. That's her call. Until then, be patient, be cautious, and be courteous.
My 2 cents...
Play safely...!