I haven't really thought about my sexuality until maybe a year ago. Now I think about it a lot. I know that I'm definitely not straight. At first I thought I was bisexual (maybe even a little pansexual) because I found both men and women attractive but sometimes, I lean a little more towards women. I mean, I can look at a guy and say that he's attractive but that I wouldn't want to be with him. I hope that kind of made sense. But I'm giving myself time to think about it, I don't really need to rush.
Good idea - there's no rush, and ultimately you might find you don't really fit into just one "box" - and that's OK too.
Armsoutfather, You don't need to be attracted to the opposite sex to just think they're attractive. You can think they're good looking, but not be attracted to them. If you've never had any sort of attraction to a man, then you might as well be a lesbian.