Nineteen year old Harry Styles meets his sister's new boyfriend, Louis Tomlinson, fo the first time. Louis makes a good impression on him -- maybe too good of an impression that leads Harry to develop some sort of feelings for him. Harry struggles between knowing it's wrong to be into his sister's significant other, and knowing what he feels for Louis is something he can't ignore. It's not like he wanted this to happen... and besides you can never control the way you feel: it's purely accidental. [Written in 2014/2015, edited some parts in 2020]