"Sam!" Dean Winchester called into the motel they were staying that night, wich for the boys was no a strange occurrence, Sam came pocked his head out of the bathroom, toothbrush still in his mouth.
"Yeah?" Was his garbled reply.
"Where is my car?!" He turned to face his brother; Sam barely managed to keep a straight face, though he did. ""And what is that fancy pansy car sitting in its place?!" Sam can to the door and looked outside wondering what car Castiel had decided to swap it with, he so badly wanted to burst out laughing when the car the Cas had chosen actually was an Impala, just of a newer kind, it was even back.
"What, that is the Impala?" Sam turned to Dean, and said the scripted words that he and Cas had worked on all week. Dean narrows his eyes at his brother, suspicious but at the same time wondering if some new baddy had put him in another alternate dimension while he had slept, or maybe something else. "CAS!" Maybe the angel knew what was going on.
"Yes Dean?" He appeared way to fast, a little faster than normal, which startled Dean and made him even more suspicious. He guides the Angel to the door to look at the car again, he himself hoping that the car is back, but no, the strange newfangled thing is still in its place, and on further inspection it has the same exact plates as his impala. He narrows his eyes at it, Cas who had been in on the switch still had no idea what humor was and the fact that Sam had pulled him in on this April Fool's joke, not that he fully understood, what significance it had, allowed himself to play along, though it almost hurt him to do so.
"That is not my car."!" He stated as he pointed to the vehicle. "Where is my car Cas!" Cas loos at the car, he does not look Dean in the face, otherwise he would tell him, so he keeps looking at the car.
"That is your car Dean. You have had it for a year now, remember, you get a new one every year, in fact you are about to go pick up the new one that you were looking at the other day" Dean frustrated puts his hands on his head and walks back into the motel, Cas follows after he shuts the door, unsure what Dean is about to do. Dean grabs the keys from the nightstand, Sam who now was sitting on the bed his teeth now fully brushed, just sits there waiting for what happens next, the keys he swapped out himself last night when Dean had fallen completely asleep, sit on the night stand that Dean had left them, Dean grabs them.
"I'll be back you two had better be here when I get back!" He slams the door behind him and Sam bursts out laughing, being he could not contain it any further.
"I don't really get the humor." Cas looks at the door waiting for Deans return.
"When should we tell him?"