CUTE QUESTION!!
Very first kiss ever with a boy... this kid Michael L. lived down the street. I always got his hand me down hockey skates, and his mother cut my hair. He came over one day (I must have been about 6 or 7) and brought me a ring from the quarter machine at Grand Union (I still have the ring!!) and so I leaned over and gave him a smooch on his lips!!
First open mouth kiss... this kid Brian from my neighborhood, happened on my front porch. I was probably about 12. It was a disaster, neither of us knew what we were doing, LOL. He asked me to be his girlfriend and leaned in. We're still friends to this day, but we don't talk about that!
First steamy, omg, fireworks in my head and butterflies in my stomach, every inch of my body lighting up... honestly... on my first 'real' date with my now fiance. Mind you, I was 20-something, had kissed my fair share of guys, but this was REAL. We had met up a few times at bars, with friends, but our first real one-on-one date was what when I knew he was 'the one', just after that kiss. I mean, WOW.
3rd time's a charm as far as memorable kisses, I suppose :)