I met J 18 years ago and before I knew his name I was head over heels, then I started dating his best friend...don't ask lol. J and I became really good friends and then lost contact. I always carried the picture I took of him the last day we talked in my wallet, and about 2 years ago we found eachother on facebook. He's the love of my life.
Yea and I miss him so much. We were together from the day we met until I lost him 15 years later. I also believe in lust at first sight too; but if you are smart you see through it real fast and get out quick.
I don't think it exists. Lust or attraction at first sight, yes, but not love. You can't love someone if you know nothing about them.
The only way I think it might technically be possible is if it's a person you've been having a long-distance relationship with and then finally get a chance to meet. Then you are seeing them for the first time, but since you have prior knowledge of them as a person, you know them and so you can love them. (But then you probably love them before even seeing them, so it might not count even then.)