Steve looked at the images more critically, noticing the little differences as Tony was pointing out and then a few more he'd glassed over the first time thinking they were the same.
He shook his head, "No...I know the man who takes care of her looks like Barton but no one ever told me that. Is she...alright?" he asked, always a little concerned about what these, changes, could do if people like he and Banner had kids.
Steve wasn't slow to understand what Tony was trying to tell him but he was definitely slower to believe it. He just stared for a minute, his hand still resting on the baby's back who was watching the two of them, still eating the candy. "But...that's...how is that possible? I didn't get the serum until I was 25."