hey man; You sound a lot like I was when I was with my first serious girlfriend. It took me 7 months of knowing she liked me to kissing her! I was proper nervous. Anyway, I crossed that hurdle with flying colours with the aid of some wine and then it only took another month before I give her the big one. The guys are right; confidence is pretty much all you need. After all, I'm sure she'd rather you make the effort and not be great than not do anything at all - everyone's gotta start somewhere and it wouldnt suprise me if chicks got off to that shit(teaching a dude where its at).

So yeah man, don't worry, just don't rush, let the moment come then strike!