Dean didn't bother to answer Anna's question about the fun, instead choosing to give her a withering look, even if it was tinged with faint amusement.
And he nodded at the comment about aliens. "Sure, Cas mentioned it," he replied casually. "Something about this alien race turning up, I think the doc knows them. Cas said they can handle it, we don't need to go back or anything." He'd glanced at the message boards a couple of times, seen the fear in the posts from that weird Romana chick and the doc. But they did happen to have an angel on their side, he wasn't too worried.
He tensed faintly at Anna's comment to Sam, and at Sam's reply. It wasn't the hair. He didn't know exactly what it was, almost feared finding out, but Anna wasn't going to comment on something as shallow as the need for a hair cut. He looked up into the rearview mirror, trying to meet Anna's eyes in the reflection, wondering what she knew. How bad it could be. Sammy hadn't been, well, Sammy in a long time, and Dean knew full well why that was, a certain demon shaped bitch with a name that sounded like it should belong to a stripper.