An AU where Luka figures out that Chat Noir is Adrien, but keeps it a secret (to protect his identity) but then accidentally blurts out his name when heās in an fight with an akumatized villain. And from then on it just becomes a habit for him to accidentally call Adrien by his name even when heās Chat Noir and Adrien just panics every time or something lol
I also have the headcanon that, once Luka makes the connection, heāll go out of his way to protect and help Chat Noir when heās fighting (cause heās an āimportant friendā) but he only really just gets in the way so it just becomes really frustrating for Adrien.











