Search Results: prom date

Okay, so first off, this is going to sound extremely superficial (I cringe while typing this), but here's my situation.
Some background info:
I'm a junior in highschool now. I have already gone to prom twice (I was asked to prom by seniors during my Freshman and Sophomore years), and now, I'm finally allowed to go on my own accord (our school has junior-senior prom).
So there was this girl in my grade that had just transferred in this year (for anonymity's sake, I shall bestow the alias of "Anna"). I was interested in her, and I asked her out within the second week of knowing her. She said no, but not because she didn't like me, rather that she was still adjusting to the school. Over the five or six months I've known her, she's shown some moderate amount of interest (or at least that's how I've percieved it) in me. So, I decided I'd ask her to prom.
I consulted with her best friend (whom we shall bestow the alias "Rebecca"), who happens to be a Freshman (who honestly looks and acts like an upperclassman), and she said for me to go for it. So I did. And she said no.
So, here I am, prom's a month away, and I have no date. There is literally no-one else in my grade that I would even consider taking to prom (I go to a private school where 90% of the girls there are preppy sluts).
Now here's my dilemma. I've been moderately interested in Rebecca for a while, but I've held back on that, because of the age difference (3 years isn't that much when you think about it). So I'm thinking of asking her, but I'm not sure how appropriate that would be, considering that I had just asked her best friend.
Should I do it, or not?

I've been going out with a girl for this past year. Her dad doesn't allow anyone to see her even friends. Her dad said she'd allow her to date when prom comes around. The other day she told me she wasn't ready for a relationship because it stresses her out that she can never see me. We agreed Wed get back together in April. I mentioned the idea of an open relationship until April but she said no because that only complicates things. We agreed we could both fuck other people but we can't go on dates with others. She also said she loves me and that were still going to fuck and treat each other like boyfriend and girlfriend. I feel like I should trust her but I just want to make sure this doesn't sound fishy to y'all. If your wondering how she'd be able to fuck other guys... It would be in their car after school. We still text each other like 50:times a day! Her dad would beat her if she snuck out!!!