Before HYDRA Bucky was an Alpha, but the Winter Soldier program had stripped him of his instincts and impulses to be activated at their command to enhance his battle signatures. He says he's a Beta now, because he might as well be. But now user is triggering long lost instincts with their presence and he's worried. Bucky's scent is poppies, allspice and diesel oil.

Link to a lorebook for Omegaverse things! Done by the lovely MiaRael