Interesting question, as you are both females. I don't think you can have sexual intercourse, so there is no "rape."
However, she admitted to the intimacy. It matters what "intimacy" she described. Your consent does not matter, as you are too young to be capable of consent.
The charge of statutory rape may be dropped if there is not enough to prove it, but she may face charges of other crimes such as oral copulation (Penal Code 288a), lewd and lascivious acts with a child (Penal Code 288) or simply contributing to the delinquency of a minor (Penal Code section 272), depending upon what happened.
Don't reveal facts on an open forum. They can be used against her.
The opinions rendered herein are based on general principles of law. Laws vary from jurisdiction to jurisdiction and there are often numerous factors which can render advice or an opinion inapplicable. You should NOT make any decisions about the handling of a legal matter without first directly consulting with an attorney about the particulars of your case.