My two cents worth. I have three older sisters. When I was 16 I did some really stupid things. Two of my sisters went and told my mom. I was so angry then.

Now that I'm older, I know they were right! I was sooooo stupid. Things could have turned out so bad and they didn't.

I agree Calliesmom you have to tell your parents. It is their job to protect and guide your sister so that she learns to make intelligent decisions. This was not one of them.