This is my first Supernatural fanfiction, so I would appreciate kindness on your part, dear readers. If not, I will Molotov you with Holy Fire. Assbutt.

This is an AU. Der, it says that in the summary, idjits. Expect the unexpected. ;)

Anyhow, ONWARDS!

Sam sat in the driver's side of the Impala, doing his best to keep his eyes on the road. Dean was snoring loudly next to him, and the music was cranked so high the speakers were in danger of bursting. Unfortunately, every time Sam would try to turn the music down, Dean would wake up and turn it back up before falling back asleep again. After the fourth time this happened, he gave up with a groan. Shooting his sleeping brother a glare, he tried to tune the obnoxious music out. It wasn't working.

"Sam, he's asleep, will you talk to me now?" whined a petulant voice from the back seat. Sam looked back briefly before setting his sights on the road again.

"You know I can't talk to you while Dean's around. He can't see you… he'll think I have a few more screws loose than I should." There was a companionable silence for a few moments before the passenger spoke again.

"You know, you should really think about forgiving Castiel soon. He may be a blockhead but he means well." Sam started abruptly.

"Lucifer," he ground out.

"What? All this resentment is giving me indigestion." Sam glared and the fallen angel raised his hands disarmingly. "Sorry." Sam sighed and took a hand off the wheel to rub the bridge of his nose.

"I want to forgive him. I really, really do. I mean, he's Cas. But he tore down the wall you built around my soul; he made me remember everything Michael did to me…what he did to you. And that's just something I can't forgive easily." He voice turned hoarse towards the end of the sentence and he rubbed at his eyes. The song changed on the radio to a more familiar tune, but Sam was too upset to enjoy it. Flashbacks of the Cage flickered in the corner of his eyes, and he had to blink quickly to keep them from overtaking his vision.

"Hey Sammy, we're out now. There's no reason to get all upset. Besides, he did pull you out… and without him, I'd still be stuck down there too."

"You are still down there."

"Maybe," Lucifer conceded easily, "but not truly. My grace is melded with your soul, partner, as long as your kicking, I'm out of the Cage." Sam breathed slowly out of his nose and forcibly pushed the disturbing images to the back of his mind. He cracked a grim smile.

"Yeah," he said shakily. "You're right of course. No need to get upset." He reached towards the radio dial and changed the station. The haunting strains of a familiar Jefferson Airplane song filled the car.

'And if you go chasing rabbits, and you know you're going to fall…'

It was a song that they had hummed together countless nights in the Cage, keeping each other grounded.

'Tell them a hookah smoking caterpillar has given you the cord…'

The Cage shook around them, the confines cracking and then mending itself instantly. Michael deserted them and went towards the edge of their prison, slamming his fists on the walls and screaming himself hoarse.

'Call Alice, when she was just small…'

Sam lay in the middle of the room, his legs so badly torn up they looked like hamburger. His face was streaked with blood; his hair was matted with sweat.

'When men on the chessboard get up and tell you where to go…'

Lucifer was in a heap a couple feet from Sam. He was in no better shape than the Winchester. With massive effort, he faced his "true vessel".

'And you've just had some kind of mushroom, and your mind is moving low…'

His mouth was twisted in a wild grin, his eyes dancing with pain and perhaps even madness.

"Sam…" he rasped through cracked lips, "They're coming for you, you're finally getting out."

'Go ask Alice, I think she'll know…'

Sam grinned back at the fallen angel, united with him in their pain and suffering. The smile soon fell off his face, replaced by a pained grimace.

"What… what about you?" he forced out of his raw throat.

'When logic and proportion have fallen, sloppy dead…'

"Forget me Sam. I'm destined to stay here forever. It's what God wills. I know that now." He bowed his head, giving into the agony.

'And the white knight is talking backwards and the Red Queen's off with her head…'

Sam stared at the archangel's still form for a long time, knowing he wasn't dead. Michael never let them die.

"Screw destiny," he finally said. The Cage shook violently around them as Sam shimmied closer towards Lucifer.

"Wh- what are you doing?" he asked weakly.

"Getting your lazy ass out of here," Sam grinned. He cut a sigil into his palm with a rusty nail before doing the same to the angel.

'Remember what the dormouse said…'

"Sam, do you know what you're doing?!"

"Of course I do… sortof." He pushed their palms together; a flash of white light filled their prison before dying out. Lucifer arched his back and screamed as his grace ripped out of his body and latched onto the closest living being, Sam.

Michael finally turned towards them, eyes wide with shock.

"What have you done?!" he screamed. He advanced towards Lucifer, who was catatonic, and Sam, who was crippled from the ritual. He closed his eyes and curled into himself, waiting for the inevitable strike. When nothing happened for several minutes, he opened his eyes.

'Feed your head...'

He was in Stull Cemetery, sprawled on his back. Lucifer, in the form of Nick, his first vessel, lay a couple meters away. They had made it. They were out.

"FEED YOUR HEAD!" Sam snapped out of his memories, looking back at Lucifer, who was belting the last line of the song at the top of his lungs. Sam glared.

"What?" he smirked. "I thought you liked my singing."

(In another world, Sam would run, horrified by his hallucination. Here, he throws his head back and laughs.)

Gabriel comes in next chapter, setting up ground work here. Take time to review!