My best friend from college. It's probably a good thing we never actually got together though. She had a boyfriend/fiance up until a week before I moved back home and while a think we helped each other become better people is some regards, we also brought out a lot of bad traits in each other too. I think if we started sleeping together it would have ruined our friendship. To this day, I don't know if I could tell her no if she ever actually asked me to sleep with her.