So here is the situation, last night I go out with my friends to a local bar not to far from where I live. My friend, (girl 1) brings one of her girlfriends (girl 2), whom I have never met before. We talk throughout the night and by the end of it, it seems like we hit it off.
However before I could ask for girl 2's number, girl 1 becomes upset about something and wants to leave, and girl 1 drags girl 2 home.
I just recently, a couple hours ago, became facebook friends with girl 2. My question is, would it be weird/ creepy if I asked girl 2 out through facebook? I would ask in person, however, I have no idea when I am going to see girl 2 again.
And if it is ok to ask her out through facebook, what is a good way of asking her out without sounding desperate.