No one knows that Stiles Stilinski and Y/N used to hook up before Malia, but honestly it's more than that. Not even the pack knows. Only Scott. Because he is Stiles's best friend. But what happens when she goes for a run through the wood like usual, and the pack is there hunting something. Stiles yells at her to go home because she can't be there while standing with Malia and she is obviously annoyed and walks away. But Scott knows she isn't just some random girl. And Derek isn't stupid. When everyone goes back to Derek's Warehouse loft after a while everyone leaves except Scott, Stiles and Derek. Stiles is trying to call her but she isn't answering him.