Alli is Liams sister. She lives in the flat with the boys. Nial and Alli are best friends. They can tell eachother anything. They both have feelings for eachother but are too afraid to admit it. They both go to Harry for help but he's the only one who knows it. All the other boys know there something between them. What happeneds when Nials on tour and they get into a fight and admit there true feeling for eachother.