Senior asking freshman to homecoming?

So I'm a senior this year and our homecoming dance is coming up in about 3 weeks. So I'm trying to figure out someone to go with.

Now there's this freshman who I've known for at least 11+ years. For at least the past 1.5 years, she's had a crush on me, but hasn't admitted it yet, at least to me. Her mom noticed, told my mom, who told me. Now that she's in my school, almost every time I see her she waves to me and smiles. however, when ever we are hanging out with other kids her and my age she acts differently. I don't really don't know how to say it but it's not as "girly/flirty" I guess.

Anyway to the point, I'm wondering if I should ask her to homecoming. I know she's going, and that sea really excited about it. Is it a good idea? and I'm kinda worrying what my friends will think about me taking a freshman to homecoming.

Ideas from anyone would be greatly appreicated.
Senior asking freshman to homecoming?
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