similar discussion:

see
http://www.theeroticreview.com/discussion_boards/viewmsg.asp?MessageID=212837&boardID=12&page=

Don't worry. They're there for you, not the other way around.

Granted, I was very young then. Anyway, she was incredible. She taught me everything I needed to know and never made me feel like anything but a stud.

honestly, it's not that difficult.  8o)

You'll be fine.  But just to be on the safe side, don't tell her that you're still carrying around your V-card.  Just go to the appointment, and have fun.  Afterwards, when you're both lying on the bed and resting, you may tell her that you *were* a virgin.

And providers will *not* care, trust me.  They mostly care about the following: cleanliness (shower, brush teeth, etc.), being treated with respect, and the donation.  The rest is part of the job, including showing a hobbyist how it's done.