My secret(1D fanfic)

All would say that Harry styles has only one sister... But no. There is one more sister of his! A girl who is Harry's half-sister. Her name is Kassandra. And she's two years younger than him. She's 18 and has just finished school. But when Harry invites her to join him on his band One Direction's Take Me Home tour, what will happen?? Will Kassi survive admist four reckless 20-22 year old hormonal guys?? Will she end up with one of them?? Can she come out unscathed or will one of the boys cast his spell on her and sweep her of her feet?? Join Kassi on this journey of survival, self-discovery, betrayal, hope, heartbreak and maybe...just maybe even love.