How can you get your girl excited or hungry for your?
Simple, do something exciting!
Some options might be:
Go see a horror movie that gets her heart beating fast. A sport she loves doing, get her adrenaline pumping as you play against each other. Maybe do something she hasn't done before, that she is slightly afraid of; You know her better than I do, what kinds of things would scare her or excite her that you can do together? Do these things and then you'll have her in a natural state of excitement or passion which can quite easily bubble over to lust as you spend time with her.