Hey I am a 13 yr old girl and I want to no if my breast size is normal for me. I am a 10c and all my friends are around a cups. I am verging on the edge of needing to go up a cup size. Is this normal? Or are they too big. They seem really big and I am quite self conscious of them as I have a average heigth but slim build so they look a bit strange on me

They come in all sizes and some females develop faster than others. You are at that stage in life where your body is changing and its normal to feel uneasy about the changes.

Your fine. You just developed faster that's all. Don't worry about them being too big everyone has different boob sizes :)