You’re brother and Louis has been best friends when they were little, to be more specific they were best friends since they were 5 and they are in high school now. You’re brother and Louis has been best friends for a very long time and you were fine with it because you thought that Louis was funny, smart, and maybe a little dirty minded and flirty but little did you know that Louis has a slight crush on you. You realized that he was being more flirty than usual.