But, basically what's on the tag! At one point during the experiments that Hydra ran on them, the Maximoff twins end up in the same facility as the Winter Soldier. Winter sees them getting mistreated, and they are people, not weapons like him, so he steps in because people shouldn't be treated like that.
The twins and the Soldier bond after that (they're the only sane people in the compound, so makes sense), but Hydra picks up on the fact that their asset isn't acting how they would like, so they punish him accordingly.
+Bucky saves one of the twins from being gang-banged, so the agents rape Bucky instead
++After Hydra "corrects" Bucky's behavior, the twins are horrified when he doesn't recognize them anymore
Protective Bucky and the Maximoff Twins
But, basically what's on the tag! At one point during the experiments that Hydra ran on them, the Maximoff twins end up in the same facility as the Winter Soldier. Winter sees them getting mistreated, and they are people, not weapons like him, so he steps in because people shouldn't be treated like that.
The twins and the Soldier bond after that (they're the only sane people in the compound, so makes sense), but Hydra picks up on the fact that their asset isn't acting how they would like, so they punish him accordingly.
+Bucky saves one of the twins from being gang-banged, so the agents rape Bucky instead
++After Hydra "corrects" Bucky's behavior, the twins are horrified when he doesn't recognize them anymore