'One Direction'

You're Zayn's younger sister by a year, and he's super protective of you. He's part of the band One Direction with Niall, Louis, Liam, and Harry, and now that he's on vacation and your parents are away, you're alone at home, and Zayn decided to spend his vacation there and bring the boys along too.
When they arrived, you opened the door and hugged Zayn immediately, and when the boys saw you, their mouths dropped open.
Since you are VERY, VERY, VERY hot and beautiful

Louis is already flirting as usual.
Niall is more shy.
Harry is charming.
And Liam is calmer.
They're already making plans to get your attention and win you over; it's probably going to turn into a competition...