Trying to find

[cappn]

Stiles finds out he has an older sister that his mother had given up for adoption before she had met and married his father. The sister comes to Beacon to meet him and find closure or something and everyone loves her but instead of bonding with her too, Stiles only gets insecure and jealous. She doesnt end up being evil or anything and it ends with her leaving and hoping to try again in the future.

****FOUND****