Keep It A Secret (Zarry)

Zayn and Louis are the best of friends and touring the world together singing for their fans. They have been friends since they were young and nothing could seperate them....well maybe one thing and that's Louis adopted brother, Harry. After the first few weeks of their tour Louis invites his brother and his brother's two friends, Liam and Niall, to spend the rest of the tour with them. Zayn is bothered by it until well he sees him and now he is pinning after Louis's brother and the thing that is getting in the way is Louis's number one rule : Do not date Harry.