My sister is the same. I wish she smoked pot though she is such an uptight bitch. She is so close minded. People at school were always amazed we were related. She is really preppy - gets perfect grades - hangs out with people that are clones of her. And she only drinks. I am the most open minded not preppy straight d student (Although I did get straight a's in 11th grade bc I was tired of my family saying I was dumb so I just proved em wrong) .... getting off topic ... toke up with her! I really want to w. my sister some day I think she would be a lot less judgemental if she did.