The Other Horan (Zayn Malik/Niall Horan/Andy Samuels)

Bernadette Horan, last name sound familiar? Yeah, she's Niall Horan's twin sister. She lands herself in hospital and Niall makes her move in with him. The problem is, he didn't know how easy it was for Zayn to get to her. Isabella Nolan, Niall's girlfriend, but he thinks fame's getting to her head, so now, you could s...