I don't think that'll happen. I think either you'll, within the very near future, kindle this into something more than a "one night" thing, such as dating this girl, or you'll move on, and she will too. It's just fresh right now.

Why not talk to her and tell her how you feel? Tell her you'd like more than a one night thing...if she accepts, then great! If she doesn't, I'd tell you you haven't lost much.