The friend that knows the most about you:
It would have to be this girl:
I went to school with Laura (she’s three years above me) and then we ended up working together at our local Co-Op. We’ve been friends for ten years and she knows pretty much all there is to know about me, from the silly little stuff I used to worry about when I was 11 to the silly little things I worry about now I’m 21. She’s always there to lend an ear, and she is like a big sister to me.