The more I learn the more I realize I'm pretty much inept reading body language and such, so that might be a problem for me.
I think I'd be a bit lost the first time with sex, I guess that's normal though, and I suppose as you say, experience would make it easier. However I also know each girl likes different things, so it would be good to ask to some point, right?
Sex isn't really something hard to learn about thanks to the millions of ... "educative" videos online, I realize real life sex wouldn't be like porn, but you can get the basics. What bother's me the most is kissing because that's something I don't really know where to learn anything from... And starting without some basic knowledge can go awfully bad...