Asking My Mom to Let Me Shave?

I am 14 years old, in my freshman year of high school and I don't shave. I really want to, more than anything. I'm always too afraid to ask though. I hate when it's hot because I have to wear shorts. I've tried to buy my own razors before, but my twin sister said, "No, it's like hiding your period."

My sister isn't as crazy about this as I am. She gets really awkward when it comes to talking about anything like this, too.
All of my friends shave and I get so embarrassed whenever I'm in public. They always talk about it and I have to pretend to do something else because I'm too embarrassed. I think a few of them have noticed, and possibly talked about it behind my back. My legs make me anxious and I'm always feeling depressed.
I need to ask my mom soon. I can't take this anymore. Please help!

By Caroline S.