The address led Dean to a little white wedding chapel. It looked normal enough from the exterior. He entered quietly through the front doors. Cas trailed behind him.
A long hallway led to another set of double doors. Dean crept forward. When he reached the end he glanced back at Cas before pulling out his gun and cocking it, ready to fire. As he reached for the door handle they opened in front of him.
Dean jumped, pointing his gun at... his brother.
"Dean. Cas," Sam greeted. "It's okay, you won't need that." Sam put a hand on Dean's gun and lowered it. "Come on." He pulled Dean forward into the chapel.
It was clearly set up for a wedding. Dean glanced at his brother again and noticed the pink flower pinned to the suit jacket.
"I thought you went off to hunt demons on your own or some crap," Dean told his brother, trying to fit the pieces together.
"You gotta-" Sam pulled Dean forward and positioned him to the side of the flowery arch set up at the end of the aisle. He looked back at Cas and said, "Oh, you can just take a seat." He turned back to Dean. "You didn't bring [Name]?"
Dean looked at his brother with a frown and said sternly, "No."
"That's probably good, seeing as I used to have a major crush on her," Sam grinned nervously. He reached across Dean and grabbed a flower sitting on top of the organ. He pinned it to Dean's suit.
"What is this?" Dean asked, glancing at Cas.
"Uh, apparently pink is for loyalty," Sam explained.
Dean looked to Cas again, hoping for some help. Cas had taken a seat by the aisle in the second row. He was frowning as he looked around the room.
"Alright, uh," Sam grabbed Dean's attention again and straightened out his brother's jacket with a tug. "So, a little sudden, but life is short so I'll keep this shorter." He put a hand on Dean's shoulder and said sincerely, "I'm in love. And I'm getting married." He smiled excitedly.
Dean frowned further. His forehead wrinkled in confusion.
"Say something," Sam laughed nervously. "Like 'congratulations', for example."
Dean's mouth worked for a moment, but the only thing that ended up coming out was, "What?"
Sam's eyebrows rose, but he continued to smile. Before Dean could explode from frustration, the organist sat and started playing the well-known bridal song. A woman in white started walking down the aisle. Sam took his place next to Dean. The older brother stared at the thick white veil, wondering how he was going to take out whatever monster was underneath it. He considered that it might've been a good decision to bring Cas.
When the woman reached the end of the aisle, Sam stepped forward and pulled the veil back. In the big, poofy wedding dress was none other than Becky Rosen, superfan.
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Gabe had beat you a handful of times at Go Fish, and you suspected that he was cheating. You got a phone call as you told him you wanted to play a different game.
"Hello?"
"Sam. Got. Married."
"What? Dean?"
"My brother. Married-Becky-Rosen!"
"Uh," you glanced at Gabe. "I'm afraid I'm not following."
"Sam Winchester is no longer single," Dean said more slowly, but with clear frustration. "He called me to a little white chapel. For his wedding!"

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Supernatural [Reader Insert]
Fanfiction[Name] has moved unofficially to Canada, fleeing the grief of her father's passing and looking for her place in the world. She finds herself stuck with an under-the-table waitressing job and a dingy little apartment on the bad side of town. Fate c...