What about just a cuddle kiss? Watch a good movie and cuddle, and start stroker her legs a bit, in a kinky way, but not groping. Lightly Lightly Lightly also caress her body in general, but again, no groping. Start to move in to her inner thighs, and lightly caress there for a little bit, but then act a bit shy (depending on who you are, you might actually be shy), and back off a bit, and then just go on to holding her. Hold her for a little bit (5-10 minutes), and if she isn't totally backing away or weirded out by now, start caressing again. Depending on the position that you're in, after a while, kiss her on the lips, or if you can't, the neck. Make sure she knows you're going to kiss her, but don't just ask her if it's ok, get the signals from body language. If she seems to like it, do it some more. Remember that things might not go your way during all of this, but just go with the flow. Don't be too aggressive, but don't be a fucking geek, women aren't attracted to guys who aren't willing to take the initiative a little bit. Hell, after you've started, you just might find out that she takes over for a bit, or at least leads it in some direction.
Not every guy likes this sort of method, but it's the one that I would personally use in a situation like this... Actually, one that I have used in a situation like this. Good luck, no matter what you do (but please don't be too geeky when you do this). I look forward to finding out what happened.