Fallin All In You Q&Aby Cheryl6502Ask questions to the characters in Fallin All In Youniallhoranarianagrandearianahoran+5 more Fallin' All In You | S.M. & A.H.by Cheryl33863Ariana Horan is the younger sister of Niall Horan from One Direction. She is 18 years old but soon trying to be a singer like her brother. Niall Horan is the older broth...arianagrandeniallhoranshawriana+5 more