Steve stay close behind Peggy in case she needed help, sliding himself up toward the head of her bed so Bucky could have a better view of everything. He wanted to see too, of course, but this was Bucky's first go and his baby, he knew how much it meant.
He took the bag from her, holding it on one wrist. "We'll take care of you if you need to though." he paused a second before adding, "But not too much."