Jo wasn't the only one who thought it was because of Aiden. Anna certainly thought that. She figured as soon as Cas figured it out, the three of them would be trying to find a way to get her and Aiden home. Anna was afraid to even talk to Jo about it. Although maybe that was just her guilty conscience. She knew Jo wanted Dean to be a father to her children and, for the past few months, Dean had been Aiden's father.
Anna lifted her eyes, watching Dean with Aiden, wishing for the millionth time that it was his son and not Crowley's. "I'm sure she'll be happy."