Stiles accidentally finds a trunk full of Derek's professional dom gear from when he lived in New York. They don't talk about it. Then Stiles turns eighteen, and they do.

The last thing Stiles expects when he walks into Lydia’s exclusive S&M club is to rescue a sub who’s obviously been mistreated for a long time. His name is Derek, and when he awkwardly reaches out, asking Stiles to be his Dom, the urge to shield Derek from more pain is too strong for Stiles to resist. But Derek is still recovering from his past and learning how to set boundaries, so they have to take things slow.

He feels helpless, and not in the good way. Not in the way he needs to feel, the way that means freedom. Being the Alpha means not getting to feel that anymore.