^^^ I sort of disagree. This works, but it's what she expects. You'll never get a Day 2 on that, you're just another guy in a club.
I say go very sexual soon in, as soon as it feels right. Give a short amount of time to feel each other's rhythm, that's very important, and then it's all about touching and escalation, following that rhythm.
Dancefloor escalation for me goes: grind behind her, put your hands under her shirt and feel her skin, touch her as$ and lift both of your shirts a little (so you feel each other's skin), lean in close by the side of her head and smell her, say quietly to her "Look at you..." or "Youre so fvcking hot," kiss her ear and behind it. Maintain the lower body, hand contact while doing those later steps, maybe play with one of her hands by her waist. Once you get to that point, she's sure to kiss you on her own. Continue escalation til she does.
Number close when someone's leaving, or, better, as soon as you isolate her off the dance floor. That gives you the option to meet up again that night if you lose each other.