Should I ask this girl out?

[ornlu88]

Two years ago I had a little crush on her, but I never asked her out because to me it had seemed so weird to like a girl purely based on appearances. Then I forgot about her, but I had a dream that she was in part of, and it reminded me of her. I don't have a crush on her, but she seemed nice and has the prettiest eyes so I thought it couldn't hurt. However, I am doing online schooling this year, so the only way I could contact her would be through Facebook (though we aren't friends on Facebook).

There really isn't any risk since if I don't say anything, I'll probably never see her again, but it also just seems like it would probably be really creepy..

Should I go for it or not? Thanks in advance!