Disclaimer: If I owned Sam and Dean, I'd be exhausted. HAPPY, but exhausted.
Spoiler Alert: Season Four compatible. And you know what that means.
When Dean gets out of the shower, his phone is lit up. He shakes his head with a sigh.
Sam, all you had to do was run to the store to get some more rock salt, how hard can that be?
He picks up the phone, opens it. The display says there are two messages.
He clicks the first one:
Beep. Sam's voice, annoyed: "Okay, Dean, I got the salt and I'm on my way back… if I can find the damn road. You wanna remind me again why I'm doing this and not you? I still think you cheated in that game of pool." Dean smirks; he doesn't need to cheat against Sam. They both knew the rule of tonight's game: loser had to go pick up supplies, winner got the first shower. "And if I find out you used all the hot water I'm gonna… WHOA!"
There's a sudden beeping sound and the shrill of tires and a dial tone; it sounds like Sam had dropped the phone. Dean frowns; what the hell is Sam doing to his baby?
He clicks on message number two: Sam's voice again, a little breathless: "People around here drive like MANIACS. Who's going to go tearing down these roads when they're so wet? Loons, that's who. I cannot wait to do this job and get out of here." A slight pause. "Um, Dean? I think I might be lost. This street doesn't look right… I had to swerve over onto another road to avoid that last driver and none of this looks familiar. I can't – oh, DAMN!"
The most horrifying noise assaults Dean's ears: Sam is yelling, wrestling with the Impala. "Dean, I-I can't control the car… hit a… skidding! DEAN!"
A cacophony of sounds hits Dean's ears: metal buckling, glass shattering, Sam's voice crying out, screaming…
Dean starts to shout into the phone, futile gesture that it is. "Sam?! SAMMY?!"
Sam's voice, sounding far away, full of pain, so very weak: "D-Dean? Th-there's glass all over me. Can't s-see… m-my legs… Dean, I can't feel my legs!" The sounds of someone trying to crawl out of a twisted metal coffin fill Dean's ears. "De – so dark… somethin' in my chest… hurts t' breathe…" Wet coughing assaults Dean's ears and somehow he just KNOWS his brother is hacking up his lifeblood…
"SAM!" An anguished scream tears its way through Dean's throat…
… as large, strong hands suddenly grip his shoulders. "Dude, c'mon! It's alright! I'm right here… Dean, WAKE UP!"
His eyes snap open – and Sam is sitting on his bed, holding onto him, eyes half-fogged with sleep, half burning with worry.
Dean gapes at him, and throws his arms around Sam, shoulders heaving with sobs.
Sam starts to rub a circle on his brother's back, just like Dean has done for him all of his life. He starts talking softly, "Shhhh ,it's okay, it's alright. It was a nightmare, that's all… shhhhh, it's over now. All over now. Another nightmare about Hell?"
"N-no." Dean's voice is muffled, choked with tears and pain. He pulls away, looks Sam in the eyes, trying to convince himself Sam's really here, not dying on some backwater road.
"It was worse"