Sometimes when Merrilee looked in the mirror she would smile with happiness. For a moment it seemed to her that she was seeing her sister.
Over time it passed.
Yellowjackets Fallout AU:
Instead of freezing to death, Jackie ends up in a parallel reality in a post-nuclear war world where she finds a new ghoul best friend (who just so happens to be a cannibal, but who's counting) and learns how to shoot a gun. Shauna, meanwhile, thinks her best friend is dead and goes a little crazy. She goes even crazier when the supposedly dead girl returns with a new wardrobe, radiation poisoning and a shotgun.