During the process of turning Bucky into the Winter Soldier (up to author exactly how far gone he is, I'd just like there to be at least a little of Bucky still present) HYDRA/the Russians/whoever forces Bucky to rape another prisoner. I don't care what exactly they're threatening him with to get him to do this, and I don't care if the other prisoner is male or female, I just want to see a horrified Bucky being forced to rape someone who is actively fighting back.