Louis Tomlinson has been dating his girlfriend Eleanor for two years and has been completely dedicated to her. That is, until he goes to meet her family and finds himself infatuated with her very handsome step-brother Harry. Can he stay faithful while having wandering eyes for not only someone else, but for a boy?

Harry meets his cousin, Louis, and gives him some Christmas spirit.

[THE DARK SERIES #1] Louis Tomlinson signed a contract that says he has to break Harry Styles' heart, his bestfriend. The contract has 10 things he needs to do break Harry's heart and stop him in being a flirt. But while he does this, he needs to make sure that he doesn't fall in love with Harry or else he will have to face a severe punishment. But what if things went out of control and Louis falls in love with Harry? What will happen to their contract?