I agree with everyone that I consult is a good idea, but to also keep in mind that her body is still changing. I had a friend in HS who was constantly teased about her breast, and I remember her complaining about it hurting her back a lot. I know that she thought about it, but decided to wait. Unfortunately, I've lost touch so I don't know if she ever went through with it, but I remember feeling awful because it was both a physical and emotional hindrance.