I'm a newbie to the hobby.  I have a high heel fetish - I love nothing more than having a gal in her birthday suit with heels on.  What is the appropriate way to ask a provider if she's willing to accommodate during our session?  Thanks.

I love it too==just ask

In the heat of the moment you can ask if she'll keep them on...

Many escorts will even mention wardrobe requests on their web site. I have found many ladies enjoy dressing up for clients., and  I've made  wardrobe requests in an email or over the phone. Never had a problem.  It's when you ask about specific sexual acts that you'll have the phone hung up on you .
And as HD69 stated, ask her to keep them on.

that you mentioned here.  Just be respectful and cordial and ask if she could sport only her hi heels and a her bday suit!  Just be nice and a gentleman thats all.  

Once in a while I will ask a lady to wear a certain outfit that I saw on her web site.  Afterall, if she gets your attention in a certain outfit from a picture, imagine how hot she will look in person.

Hey all, thanks for the responses.  Quick follow up question though.  I usually am in contact with a booker/screener to set up appts (I like the K-girls), so would I just direct the wardrobe requests to the booker?  Or is that a no go?

its very likely to fall on deaf-ears if you are going thru a booker.  maybe just mention it to her before she takes everything off.

Just to be on the safe side, don't mention nudity.

"I'd love it if you wore a pair of high heels through the entire date" gets the message across without straying into the grey areas.