Thanks to everyone who responded to my previous post. Another quick question: are we expected to bring our own protection, or will the provider have a supply?

Generally speaking they will have protection but they have been known to run out, forgot to refill their purse or what not so just be a boy scout and always be prepared.

I always have a drawer full of protection, but on my last date I forgot to bring some along.  Of course, I stopped and picked some up, but not everybody remembers or is able to get to a store before a date.
Play safe, bring back up!

especially if it is with someone they don't know well.  It's for their protection.

If you want to use a specific brand, discuss that with her before hand.  She'll probably go out and get them herself.

but if you require a particular size, it's best to bring those along. Not everyone carries an assortment from snugger fit to Magnum XLs. At the very least, let the lady know if you need a particular size. Discreetly, of course. You may mention that you require a larger than average hat or raincoat.

Providers have always come prepared for the party in my experience with common brands of condoms, but I do need the snugger kind or they will easily slip off due to my shape. Slip off during a good grinding CG is a big worry and distraction for me.  

So recently I have brought along a favorite brand with a good track record and hope that the provider will accept them at that point or that I can work out a way of asking for them on the next visit.  It only takes one near slip off to get the point across.

I also bring a favorite lube - it is interesting how just the lube can be the point of serious discussion as to which brand is better.  

It would be nice if clients would bring whatever brand of condom they are comfortable with and know fits snugly, but that is impractical.  I admit to being a newbie (pending approval with TER), but I feel that with the world being what it is, best for the provider to take brand requests if need be, have several sizes/types available, and trust ONLY condoms she personally buys and inspects.  Probably (hopefully) some urban legend, but I heard about a vengeful, evil whacko who purposely put tiny pinholes in his condoms to pass on the HIV he got from an unknown woman.  Why take a chance with what could amount to your life, ladies?