A/N: OK, you guys have all spoiled me with my "Soup and Chocolate"! Thank you so much! And, now, another piece of random crack, based on a line in tonight's episode. Probably takes place in season 4 or early season 5.

Disclaimer: As usual, I don't own anything. And, as usual, MST3K applies.

Who's On First?

Dean flipped through the channels of motel room's TV, feeling bored. Sam had gone out to get something to eat, but he wasn't back yet.

He, Sam, and Cas were pretty much holed up, nursing various wounds. Another day, another step in preventing the apocalypse. He just needed down time.

Cas looked over from the table. "What are you doing?"

"Trying to find something to watch. Just for noise." He found TCM. "Ah. The Naughty Nineties."

"The what?"

Dean shrugged. "It's an ancient movie. But, these guys are pretty funny. Wanna watch?"

The angel looked confused, but he pulled his chair closer to where he could see. "What's the movie about?"

"It doesn't matter. The only thing that matters in this movie is it has 'Who's on First?' You'll love it!"

Cas looked over at Dean. "Who is on first?" he asked slowly. "What do you mean 'first'?"

"First base."

"As… in… baseball?"

Dean grinned. "Yeah. As in baseball." He suspected the angel was proud that he guessed right about the first base.

He turned back to the TV in time to see Abbott and Costello start the famous routine: "Who's on First, What's on Second, I Don't Know's on third." "I'm not asking you who's on second" "Who's on First!" "I don't know." "Third base!"

Dean laughed at it, glancing over to see how Cas was liking it. The angel looked even more confused. "You don't find this very funny?"

"So, who is on first?" Cas asked.

"Yes," Dean grinned.

"What is the player's name on first base?"

"No. What is the guy's name on second base."

Cas frowned. "Do you think this is funny?"

"Yeah, a little bit."

"So, who is the guy on second base?"

Dean choked back a laugh. "No. Who is the guy on first base."

"I don't know."

"He's on third. We're not talking about him."

Cas looked back at the TV, but Dean thought he could see the barest hint of a smile on the angel's face. He's having a good time! Dean thought gleefully.

"OK, so what's the player's name on first base? This is what the little man asking the questions is trying to find out."

"No. What's the guy's name on second base."

"I don't understand. I'm not wanting to find out who the player on second base is."

"No. Who is on first."

"I don't know."

"Third base!" Dean laughed. If Cas wasn't having fun, then he was. He figured that Sam would probably give him a bitch face at that.

"So, this routine is just based on misunderstanding about these players' names?"

"Yeah."

"Why? And don't say left field."

Dean looked back at the TV, a feeling of disappointment came over him. He was insane to think that Cas would find this funny. "It's… funny."

"So, the person's name of 'Who' is on first, 'What' is on second. And 'I Don't Know' is on third."

"Don't explain the joke," Dean muttered, settling back on his bed. He glanced over at Cas and sat up when he saw an actual smile on the angel's face. "You're joking with me."

The smile disappeared, and Cas turned his big, innocent eyes on Dean. "I don't know what you're talking about."

"You did find 'Who's on First' funny!"

Cas looked back to the TV, but Dean could still see the smile in his eyes.

He chuckled. "Cas, we're going to get that stick up your butt out soon."

End.

A/N: I don't know how to end this. So, I'm ending it here. I love 'Who's on First?' If you don't know it, why don't you? Find it now! It's awesome!

Cas knowing it, and Dean's gentle and weary "Don't do that" made me laugh. But, I hope you kind of liked this.