Louis Tomlinsons Sister...(A Niall Horan Fanfiction)

Cassy Tomlinson a 17 year old girl That has a brother named Louis in the band One Direction. One day Louis decided he would leave for XFactor without Telling his sister.....and he never looked back. He left her broken, and kept her wondering why this might have happened....did he really hate her that much? What do you...