Hey, congrats on the fun Friday Doc!
lol Being serious, I think the route to go would be to used the sex educator as a sounding board for any type of concerns or reservations you might have.There isn't really any such thing as a stupid question for something like this...it's very new to you, and it's often played up to such a status of importance that it makes the prospect a little scary. There's no need to be afraid of asking the educator anything.

Keep in mind, I would wager the educator has heard from dozens of others in almost the exact same position as you. I doubt you can ask much of anything that'd catch her off guard.
Good luck, be safe, and have fun.
Hugs,
Harley