Bucky fighting to keep from ramming his head against a wall on a literal hourly basis. The kids making him gifts and drawing him things. The kids climbing on him like a jungle gym because he's big and strong and they know he won't fall over. The kids being fascinated with his metal arm and completely ignoring him when he tells them it's dangerous. Bucky smiling his ass off whenever one of them passes a milestone. Bucky ripping anyone who hurts them to shreds. Bucky Barnes and children.