I do not get crushes. The only way I get to liking you is if we become semi-close friends and talk on a regular basis. I'm not capable of feeling some quick emotions about someone I barely know. So I've technically never had a first crush.
Also, I can't really pinpoint an age where I became interested in males/females, because... well, I'm not really super interested in them in the first place. I think I became vaguely interested in my early teens? I don't know. The way I handle love and affection aren't really normal from my understanding. It really is just about you being a really close friend of mine who I want to share everything with - I don't see much distinction between platonic and romantic love.
My first boyfriend was someone that I came to like after many months of speaking, and decided to go out with them. This was a bad idea. We were horribly incompatible and he quickly started to grate on me, ending in constant arguments and me sending him a lengthy e-mail describing all of the precise times he had pissed me off. I was 16 years old, he was 16 years old, and he lived in a different country. It never would've worked.
Oh yeah. ALL the people I've dated have been online. My first official date occurred when my third boyfriend, currently my fiance, came over to visit me. I was quite eager to be taken out to eat for real. By the way, he has lived with me for over two years now, so the relationship has solidified into a more normal, physical one. People tell me all these horror stories about how they went to visit their significant other and it ended in disaster. But he and I, we knew each other well. We spoke everyday, first through text, then through voice, and then through webcam. Real life did not change the way we interact. Our first date was amazing, and he was (is) amazing.