Harry's sister Niall's girl (Niall Horan fan fic){EDITING}

Erika is Harry Styles little sister and she is very talented and loves to sing. when she gets to the recording place is she sees Niall and she thinks hes really nice and has a fun personality. They met each other and came really close. After a while Harry has some big news to tell Erika. I cant tell you, you have to r...