"You can start with your pops." Everything, really. He wasn't a stranger to people being turned to children, but this was strange. Though he'd rarely interacted with her, he knew SHIELD had a Black Widow even in his world. But everything from before five or so years ago was a blank. Did he have a history with this assassin he didn't know about? One that even his Natasha had neglected to tell him?

Well, call it selfish, but he wanted to see what he could get out of her while she was still a kid and still honest.