I am not snow, but I am frozen. I am not glass, but I can be clear. I melt into water. What am I?

First, second, third.. So many ways to encounter me. Just keep the anal probing to a minimum if you please!

Like a gentle breeze, it sweeps away and brings the tease. Hair or teeth, it does its duty, keeping all in tip-top beauty.

NIN said it best in a downward way; though a staircase like this can be exciting. I'm almost helical, like rotini; though this word ties to someone on a one way track, out of control.

I’m the nipple’s tiny curtain, spinning in a whirl, A decorative flair for the exotic dancing girl.