@Erik
I've always had a VERY strong sex drive (except when I had a bad experience with birth control pills a few years back), so it's hard for me to wrap my mind around someone so put-off by the idea of sex in that aspect. xD BUT, I do understand your confusion as far as preference, and I've gotta say, just don't put too much thought into it. Sometimes it just takes finding the right someone to open your mind up.
I also believe EVERYONE is pansexual, for the right person (not sure if there's a different term for that), whether they're willing to admit it or not. I have a friend who has always been straight, started dating a guy online, and when she found out it was actually a girl pretending to be a guy, she decided she still had feelings for this person, and wasn't going to let gender preferences get in the way of anything (which is huge for her, because she's not attracted to vag at all). And sure, maybe it would have felt less right if she'd engaged in sexual activity with this person, but that's just something we all have to wait and find out. I don't think things are as black and white as "straight" and "gay", and because of that, some people (especially those not sexually active) will have a harder time learning about their preferences than others.
Just keep in mind that when it's right, it will feel right. If it doesn't feel right, don't feel pressured by anyone. Also, if you're ok with the idea of sexy kissing, it's probably just that you need to start there and build your way up. If you take yourself slowly, you'll probably find that the more "active" you become (in any sense of the word, be it directly sexual or not), the more you'll want to become active in other ways as well. Like waking up your sexuality, perhaps. It's just hibernating right now. Don't do anything to try to move the calender forward. Spring will come on its own.