A/N: I would like to thank all the lovely readers of this fic!

They were still stuck in Purgatory, but things are easier, some how. To Sam, at least. He still want to get out, still misses Dean- but being like this, traveling around the vast landscape of Purgatory, by air and by land- makes him feel free.

"You think too loudly." Lucifer wraps his arm around his waist.

"So do you." Sam bites back, grinning. It should not be this easy, falling into playful banter with Lucifer, letting the Archangel carry him as they fly above the trees, but it is, and, for once, Sam does not feel guilty about feeling good.

"Guilty as charged." Lucifer laughs, lighter than air, his feathers shifting against each other, fanned out in the air, bright and glowing.

"Hey lovebirds!" Benny hollers "Get down here and walk with us mortals!"

Lucifer swoops down, keeping his hold on Sam. Sam lets him, focusing instead on Lucifer's cool breath against his airs. His heart leaps against his rib cage as he realized that he is in love. God, Sam is so fucked. He is in freaking love with Lucifer.

"I love you too." Lucifer whispers in his ear and Sam groans.

"You heard that?"

"You were projecting. Loudly."

They land together. Sam is happy. Lucifer is happy. They are, against all odds, in love with each other. Two halves made whole. They should have known that it could not last. Not for people like them.

Michael knows that something dark has wormed its way into him. Leaven. He orders the creature hiding in the cracks of his worn out grace. Now. Oh Michael. The creature sighs. You may be old, but I am older than time.

Leviathan. Michael hisses, falling back. Lucifer glances at him with concern, and Michael shakes his head, gesturing for his brother to stay with his lover. He is glad, that Lucifer is finally happy. He can see his brother's grace healing itself, mixing with Sam Winchester's soul, like how two Angels would mix their graces together. Unconventional, Michael thought. But Lucifer is all about unconventional. And with Adam, Michael supposes that he is, too.

Lucifer is happy, and that is what matters. He deserves some happiness, at least. Michael couldn't give him what they had, but now that he has this Michael can rest easier, even with the constant ache in his chest.

Your little boy-toy is lucky that he's dead already. The Leviathans coos, and Michael tenses. Oh they things I will do to him- such a pretty face.

Shut up! Michael seethes, thinking about this creature getting it's claws on Adam.

You get angry too easily, Mikey. It mocks him. Such a hothead. Michael ignores it's mocking words, it's subtle attempts to undermine his control, sneaking in the cracks and crevices. Wanting to hitch a ride out with him, no doubt. You know me too well. The creature falls silent, and Michael breathes in relief.

He concentrates his grace, attempting to force this creature out of his body. A sharp stab of pain shoots through his body. He bites his lips until he bleeds.

"You okay, brother?" The vampire asks. Michael nods, placing a hand on the larger man's shoulder and heaves himself up.

"I am fine." Michael answers, falling even further behind, to the back of the group. Lucifer smiles at his vessel, almost worshipful, and a small stab of jealousy sends him reeling, the poisonous voices of the Leviathans hissing their laughter in his mind. Lucifer is happy, for once. Like they used to be, before they ruined each other. He has his mate, but Michael's mate is gone and Michael is bitter and the Leviathans bleed black, burrowing into his grace. It's not just the one. Hundreds, thousands of these vile monsters from the time before creation. They only know to devour.

They group reaches the exit, a thrum of blue light by the side of a small hill. They glance at each other, almost unable to believe their eyes. After what seemed like years in the cage, and decades traveling in Purgatory, they finally have an out. Sam takes Lucifer's hand in his, squeezing it softly.

"Come with me when we get out?" Lucifer squeezes back, a genuine smile on his face.

"Of course I will, Sam. You are my other half."

"Ahem." Benny interrupts, grinning. "Not to get sentimental, but- It's been good knowing you guys. Michael, too. So.."

"Oh, yeah-" Sam scratches his head sheepishly, holding out his other hand.

"I will not go." Michael speaks up- he cannot go. If these Leviathans are released

"You are going." Lucifer drags him away. "What do you mean you will not go?"

"I cannot go, brother. Please." Michael hopes that Lucifer can feel the darkness filling his grace. These creatures widens the cracks, drilling new fissures inside his grace and he will not let them out.

"If you are being this pig-headed, brother-" Lucifer drawls. "Then I will drag you out myself."

"Lucifer! Leave me here!"

"Hey, what's going on-" Sam gets in between them.

"Is that an order?!" Lucifer moves, snarling at Michael.

"What are you playing at-"

"I am not playing at anything, Lucifer." Michael growls.

"Then you are getting out." Michael attempts to protest again, when a sudden pain knocks into him and he is trapped inside his own mind, the Leviathans swarming him so that he cannot call out, cannot warn Lucifer and Sam Winchester and Benny about the creatures in him, because they are in control of Adam's body now.

Father- Michael prays. If you will not save me, then save Adam. Bring him back. He deserves happiness, after everything that he went through. Please.

They let Benny go at the graveyard, watching him run off into the night. "Good luck, brother." He winks at them, tipping his hat. Sam wishes that he did not, just so that he can have one more person helping him in this.

Sam's arm aches. He points the machete at Michael- no- not Michael. It grins at them, eyes sparkling with madness, telling them that 'Michael is not home right now.'

"Let him go." Sam snarls. Whatever it is wearing Michael must be from Purgatory- but Sam cannot waste anytime trying to discern it's origins- It holds Lucifer in it's grip, Archangel blade pressed up to his throat, blood and grace spilling out of the wound.

"Let my brother go, creature-" Lucifer hisses as the blade presses in deeper. "Sam! Leave!"

"Oh, this is getting quite boring." It says. "Isn't that right, Sammy? Listen to your boyfriend and run-"

"Fuck you." Sam holds his place. "What the hell do you want?"

"Just to have a little fun, Sammy." It laughs. "But we got work to do. Boss ain't happy about us playin. Gotta get to work."

"Lucifer!" Sam begins to run when it raises the blade. It sinks into Lucifer's stomach, piercing through his body and his grace, and light, so much light spills out and Sam screams. The creature raises it's head, and black smoke pours out- it's not a demon, it's something far worse, far darker. Michael falls to the ground.

"Lucifer!" He yells, pulling his brother to his chest. Sam runs over.

"Michael! Do something!" Tears streaked down Sam's face- why- why does it have to end like this- they just got out-

"Damn you Lucifer- you promised-"

"Sam- Sam-" Lucifer leans into Michael, pulling Sam closer to him, clutching at his hand like a drowning man clutching at straws. Grace pours out of him, through his mouth, through the gashes on his throat and the stab wound in his stomach.

Michael gives as much of his grace to Lucifer as he could, the horror of himself hurting his brother, both from now and the past clouding his mind, "Hold on- Lucifer- please- I'll get a healer- I'll get a team of healers, I'll get all of them-"

"Don't let go,Lucifer, please. We just got out- we just got out- it's not supposed to end like this-" Sam begs as it begins to rain. The rain mixes with his tears and Lucifer's spilled grace as Michael leaves, Adam's empty shell slumped on the wet, muddy ground.

"Michael? Sam?" Adam pushes himself up, last thing he remembers being Gabriel pressing his fingers to his forehead.

"Michael!"

"Oh my god, what happened?" Adam presses his hand down on Lucifer's stomach, the Archangel so out of it he did not even answer.

"Adam? How-"

"Don't ask, Sam- what happened- how-"

"Something controlled Michael-"

"Oh God-"

"Adam, please, help-"

Sam cradles Lucifer's body. "Lucifer! Please!"

"Sam-" Lucifer answers. He holds on, as much as he can, but his grace is leaving, his body emptying out. For the first time in thousands of years, he begins to pray. Father, please. Don't make me leave Sam. Not now- not like this.

"Hold on-" Sam cups Lucifer's face.

Lucifer answers by closing his eyes.

"No! Please!" Sam shakes Lucifer, the ashes from his burnt out wings marring the ground and Sam's arms, already washing away in the rain.

"Fuck you!" He shouts to the skies. To God. "You could have saved him! Why!"

"Sam!" Adam grabs him. "Is he-"

"God-" Sam looks up at his younger brother. "He's gone. He's dead. Why."

"I don't know. I don't know."

Sam did not let go of Lucifer for the next three days.