Naturally, Stiles had to be around you most of the time since you were practically attached to the hip with Scott, his best friend, since birth. It made complete sense that you two were siblings, especially with the small and completely stupid arguments you two would have.

Did that stop Stiles from hating you? No, of course it didn’t. He put up with you, that was it. He was kinda forced to in the end. You ended up being with them during almost everything, and he wishes you were anywhere else.