They were taking the day off, going to the city instead of the Avengers facility. Wanda wanted Bucky’s advice on clothes, namely halloween costumes. He might not care, but she still asked for him. They were in the backseat while Steve was driving. Taking the opportunity of being next to one another, she pulled out Bucky’s cock out of his pants, while making sure that Steve would never find out. (but if he did, she wouldn’t care all that much). So she pulled out his cock and started stroking it. She was hoping he’d fuck her hard in the changing rooms. But until then, she would take care of his cock.