I full on Swayzed that mother; [Cas and Dean...
[6x18 - 6x19 spoilers]
When Sam, Dean, and Bobby learn from Eve that Castiel has been working with Crowley, it feels like it couldn't get worse. So Sam and Bobby push Dean into calling their feathered friend to see what the deal is. But when Cas arrives and their about to begin their interrogation, a bloody girl arrives at Bobby's doorstep. She says she's from the year 2030 and she's here to stop Dean from screwing up the future. But something is oddly familiar about her, and Cas thinks he knows what it is.