Anna didn't know how hands-on he'd been with Gavin, so she figured it was just best to pretend like this was his first. If she treated him like a new dad, it would be easier on both of them. Especially if she treated him like a new reluctant dad. Because he was very obviously very reluctant. Much more reluctant for himself than she was for him.
Shifting Aiden in her arms, Anna leaned him so that Crowley could look at his little face. He still hadn't opened his eyes, but he blinked and chortled as Anna stroked her fingers along his soft skin. "You can touch him. You don't have to hold him to touch him."