Between the kanima, the Argents, and Peter's untimely return from the dead, everything has fallen apart. Stiles and Derek try to put their lives back together once the crisis has passed. Stiles deals with the aftermath of being tortured, and the distance growing between him and Scott. Derek attempts to become a stronger alpha and keep his pack safe, and that includes Stiles.

In which Derek and Stiles are essentially a married couple. Except they're not actually dating.

Stiles is...endowed. Derek...likes it.

“What are you trying to do?” Lydia asks finally. “Fix Derek,” Stiles says, not bothering to dissemble – Lydia's been lied to enough. “You know, before someone or something else tries to use him.

Stiles always figured it would be Scott who saw him through his first heat. They pinky-swore on it, in fact, when they were eleven and newly-presented. There haven’t exactly been an abundance of offers between then and now. What there is now, though, is the pack, and pack takes care of each other.