Sterek AU: Derek keeps introducing himself as Stiles’ ex which is super confusing considering they never actually dated. Sure Stiles has fantasised about it, about the perfect life they could have together, but he’s pretty sure he would remember if it had ever happened. He doesn’t know what’s going on but he’s pretty sure he’s going to have an aneurysm if he hears Derek talk about their imaginary sex life or their “perfect love” one more time.
Inspired by this post.