y/n Iero is Frank's little sister which makes her off limits since Frank's overprotective especially with it comes to his little sister. however, Gerard and y/n got off on the wrong foot at first kinda which soon a friendship and then grew into a secret relationship. Frank hated y/n around boys at the best of times but when it comes to Gerard it's even worse, it's not that frank hates him or anything they're best friends! but Frank thinks he knows Gerard. ------------------------------------------- THERE MIGHT BE SOME TRIGGERS IN THIS STORY