It's Just A Girl (prequel to The Lost Daughter)

Cory goes to see his sick friend Shawn Hunter. But when he arrives at the trailer park, there's a girl there. And he thinks Shawn has slept with her, Shawn insists that's not at all what's happened.

Z Girl|| Z Nation Fanfic

This takes place in season two more towards the end with the zeros and shit 10k and I knew each other when I was in 3rd grade and he was in 5th grade and before they head to Mexico they try to find medical supplies just in case they need it but instead they find someone who is like Murphy. Read more to find out.