My mothers good friend has a daughter that I think is really nice and good looking. We are also mutually friends with one of my best female friends. Anyway, I met her once when she was at my house with her mom for some reason. I was on the way out so I didn't get to talk to her much. So yesterday she added me on Facebook out of nowhere and I'm planning on going for it. My question is since we haven't really hung out, how creepy is it just to ask her for her number online and see if she wants to hang out? She knows I exist so at least step 1 is done.