Well, I'm in a long-term relationship, so I don't really get a lot of the kind of sparkage they talk about in first-time fics, and I don't tend to get random crushes on people either (I use fandom as a vent for my romantic energy, so I won't fall for someone else IRL and mess up my monogamous relationship; this works remarkably well for me). But, with those qualifiers:

And with an awareness that my similes might not work very well for you either, because presumably there's a whole different bunch of wiring going on:

*goes to do dishes and think about it*

Okay. Hai, I haven't written a poem in years, and this is not the kind of poem I used to write (too abstract), but here's what I've got:

Give us this day

I am letting you into the intimate
space near my mouth, my mouth,
my lips welcome your lips,
our breath merges and we are one.

You hold me and
we are one
with your lips on mine.

We mark each entrance and exit with kisses, some
casual, some which linger or
make us laugh, or need repeating over
and over. If you hesitate as you leave, I

have to say goodbye
again. There are many exits
and entrances in our lives; over
and over, we greet each other

into ourselves
and share love with our lips.

Um. Yeah. So there's that. (Whereas I think kissing someone for the first time is more like getting on a rollercoaster blindfolded, where the rollercoaster is another person, and your head is going OMG! And your heart is going OMG! And your body's going OMGOMGOMG!)

*resolutely does not get embarrassed about the poem* ;-)

ETA: And oh, doh, that was all about kissing. I didn't even start to address the attraction thing. I'm heading out soon, but I'll think about that later tonight. :-)