How old do you have to be to get married in Peru?
If you are still considered a minor as you would be over here in the United States, I'm not certain but if your parent or guardians authorize it you should not have a problem. If you can wait until you turn 17 or 18 you two will almost certainly have no problems. I don't know how their judicial system is exactly set up but I immagine it is more liberal than the United States. Good Luck!