Yea me and my GF are pretty open about it. I asked the "Was it good" because her body language tells me Im doing good, but the thing is a girl can feel good up to a while it seems... Then they hit the O and they feel better. And its hard to tell with my GF cause shes not a screamer, shes more of the quiet one.

But shes great, and just yea, just talk casually and if the sex topic comes up then go with it. Unless the plan for u guys is to talk about that.

LOL... what a great topic!  

I think the time to "find out how you are doing" is while you are doing it.  That's the time for feedback.  

It sounds like you are both open people, so just tell her to let you know when something feels particularly good (or not).  You can remember that and do it again.  

I'm of the opinion that since everyone is different there shouldn't be any embarrassment or hard feelings about telling the other person what your turn-ons are.

Take care.

What does she like to talk openly about? sex?

That's all well and good, but if you pull out a list of questions to ask her it's gonna be ackward.

Were you a virgin prior to your romp with her?

Yea I agree I wouldn't want to be hit w/ 20 QTs.
Or to say, ok lets talk about the sex we had...topic 1,2,3...
I'd just let the conversation flow and if it goes there, then that's all good.
You could just say things like... It felt really good when you did that...or it was cool when we did that... or I felt kind of awkward when you/I did this...or I was nervous when we did so and so.
That way she can feel free to do the same and its all casual.

good luck!

awww, I don't mean to be patronizing, but that's so cute. really!

You don't need a questionaire to ask her how you did. Is she going to grade you as well?

Most women, at least most I know, don't like men to ask them "so was it good, did you like this, what about this??" pay attention to her body language next time.

or just ask her what kinds of things she would like to try with you.. positions, oral, toys, etc.