One Direction was a popular English-Irish band and debuted in 2010. They have 5 members named Louis Tomlinson (aged 20), Zayn Malik (aged 18), Liam Payne (aged 18), Niall Horan (aged 18), and Harry Styles (aged 17). You are their youngest sister out of all of them and they just love you unconditionally. Zayn: So guys! We have our adorable little sister with us! Harry: Awww, look how cute she is.... Liam: This is our precious baby sister! Louis: Our fans love you little sis, even us too! We love you! Niall: Yep, you deserve so much affection and love from us. We will always protect you.