"The nerves are supposed to be a normal thing, if that helps," Sam tried, stepping back as soon as he was satisfied with the tie. Sam turned to look at his brother in the mirror, faintly amused. Seeing Dean play the groom almost felt like one of their schemes. He'd pretend to be the groom, Sam would be the best man, and then they'd exorcise the priest or whoever it was that they were sneaking around to get to in the first place. Good times. "But if it counts for anything, there's not one person out there who doesn't want to see you get married."
Sam smiled lightly, taking a step back. He considered slipping off to sneak some alcohol back into the room to help calm Dean a little, but he figured Claire wouldn't appreciate having Dean drunk off his ass before they even got to the 'I do' portion of the ceremony. "You two deserve each other. Claire certainly wouldn't be here if she didn't think that you were the one." Sam clapped a hand on Dean's shoulder, looking him over seriously. "And I've got your back. Everything is going to be fine, I promise."