Say You Won't. (Scarjo x Female Reader)

Kateřina Cěchová, a deadly agent from the Czech organization Černá Ruka, arrives at the Avengers' headquarters to join their team. She's skilled, sharp, and as dangerous as anyone Natasha Romanoff has ever met. Natasha, the seasoned Avenger and spy, doesn't trust this new recruit - especially since Kateřina seems to challenge her at every turn.

Locked together in a room by Tony Stark and Steve Rogers to force them to work out their differences, their heated arguments quickly reveal something deeper. Something neither wants to admit.

As tension grows, the line between hate and desire blurs, and they both have to decide: will they fight what's between them, or finally give in?