Steve's never had anyone growl at him like that, maybe over an omega, but not over Steve. It does something to him and he thinks he likes it. He's never really thought about anyone else being aggressive over him, but it sends a shiver down his spine. He thinks if he's going to possess Bucky in all those intimate ways, Bucky should possess him, too.

As their transformations reverse, there's a charge in the air that Steve can feel.

He tips his head for Bucky, not even thinking of how submissive that action could be read as. All he's thinking about is making sure they both smell right when they do this. They should smell thoroughly like each other.