Niall Horan is my BROTHER? -One Direction Fan Fiction

Kailah is a 17 year old girl she has had a rough life and things have really been against her, after her brother was adopted she was left on her own in the orphanage she didnt have friends but that was okay. What will happen when she finds out her brother has become her legal guardian, and what will happen when she realizes her brother is none other than Niall Horan, the 18 year old boy who is now in the world famous boy band One Direction.