Photographers do various genres.  Boudoir/glamour/adult they will have heard all these terms so won't be shocked.

Or you can just search for adult photographers in your area.  See what comes up.

As has already been said, photographers are used to us (and they don't judge). 
Knowing what the snaps are for helps a photographer give us the best shoot possible.  This is my own experience, anyway. 

If you look on the "Spamming in the Lions Den" section there are a few photographers advertising there.

I've had shoots with Nadia Rose and Alan Thomas and both are experienced escort photographers and I was very pleased with the results.