"Dearly beloved, we are gathered here today to witness the joining of Dean Andrew Winchester and Rosaleen Antoinette Chevrolet in holy matrimony..."
The priest droned on, and Sam shifted uncomfortably where he stood. It was an outdoor wedding, of course. He looked towards the congregation – all four of them – assembled in the garden to watch Dean get married. Sam smiled. He knew they had really come for the chance to see Dean in a suit. Dean in a suit. Sam still couldn't believe it.
Missouri Moseley had accepted the invitation to the wedding. She sat beside John Winchester, positively beaming. She said she had seen this coming. John said he was surprised he hadn't seen it coming.
The other two people there were "Rosaleen's guests", according to Dean. Apparently his soon-to-be bride had refused to get married if her friends, the mechanic and the tow-truck driver weren't there.
Sam turned his attention back to the ceremony; they were getting to the important part.
The priest cleared his throat. "Ahem. Do you, Dean Winchester, take Rosaleen Chevrolet as your lawfully wedded wife?"
Dean nodded eagerly, "Hell yeah –" Catching the priest's astonished look, he hastily corrected himself, "Uh, I mean 'yes'. Yes, I do."
"And do you, Rosaleen Chevrolet, take Dean Winchester as your lawfully wedded husband?"
Silence. Confused whispers came from the congregation.
"Uh, Sammy?" Dean prompted.
"Oh. Right. Sorry," Sam remembered himself with a sheepish grin. He opened Rosaleen and slipped inside, revving twice.
The priest nodded. "I'll take that as a 'yes'. I know pronounce you husband and Impala. You may kiss the fender."
Dean bent over and pressed his lips to Rosaleen's hood.
"I love you," he whispered.
Sam couldn't help but feel a little choked up. It was like being in a fairy tale, watching Dean drive off into the sunset with his new wife. The painted white letters "Just Married" gleamed cheerfully on Rosaleen's back window, and Sam knew they would be happy together.