Hi there. This story is being co-written. Myself and have decided to join together and write this fanfiction. We hope that you like it and any reviews will go accordingly to her as well as I. NO FLAMES. They = mean. Anyway we hope you enjoy the story and we are planning to write a sequel.I think that when you finish reading this story that you should push that sexy little button over there that says review ;). Also this story will be slash so if you no like you no read.

Chapter one: Sacrifice

Dean dived across the concrete floor. His body shook with exhaustion. Demons were circling him he gasped as gashes appeared on his arms. The Demons exploded in a frenzy of screams as Bobby fired mercilessly.

" Come on boy." he said while pulling Dean to his feet. " We need to get to your brother." They fought their way through the deadly chambers, fear was like fire against their feet.

" Sammy!" Dean called desperately. They had been separated when Demons surrounded them.

" Cas!" again he called but there was no answer. Dean pushed further into the madness, it all began to happen before his eyes. Vaguely Bobby's voice spiked his mind " I'll hold em off you go save your brother!"

Dean's legs began to burn and his heart ached against its constraints.

" S-Sammy"

The tunnel he ran through stretched into a large and open cave. The walls shook with evil. He drank in the scene. Castiel was sprawled across the far right side of the cave and Dean's heart sank as he saw the two other figures. Sam and Lucifer. He stood planted to the ground as he watched Sam's lips move " Yes" a whisper that caused Dean's expression to fall.

The image before him caused words to become trapped in his throat with crackles of sound.

Sam's body stiffened and contorted as he was illuminated in black smoke. His breathing became deep and ominous. His eyes were black.

Dean dropped to his knees " Why Sammy why?" he mumbled in despair. The moment stung like a wound drenched in salt. A sadistic laugh ricochet along the walls.

" Dean Dean Dean. I always knew your brother would give in. He's definitely a keeper." Smirked Lucifer whilst admiring his new vessel. " So much power" he marvelled.

Dean felt fire escalating from within a rage was ready to spring from him.

"You son of a bitch! Get the hell out! I'll kill you!" Sam's eyes rolled into blackness as Dean continued to speak. Lucifer stepped toward Dean.

"Tell me Winchester, how does it feel to be killed by your own brothers hands?" Before Dean could comprehend the question hands were clasped ruthlessly against his neck. He gasped and sputtered.

"You're not my brother." He coughed. Lucifer laughed maniacally and Dean glared. The hands began to feel like they were sizzling Dean's skin. He tried to scream but his voice barely scraped a sound. Every single bone in his body was paralysed.

"You feel that Dean? That's the feeling of Death. This is so wonderful. Finally I'll be able to keep you in the pit for good. Torture you for days until finally forget who you are." Dean strained his eyes closed then opened them- a reflex from needing oxygen.

"Screw you." Dean sputtered. Lucifer's grasp almost tightened but suddenly stiffened. His expression displayed puzzlement.

"What?" He questioned scathingly. The hands that were so close to sending Dean back to hell released their hold, flexing and restraining.

"This can't be possible!" Lucifer remarked his eyes blazing in anger. Dean coughed roughly whilst inhaling deep gulps of air. He held his hands to his throat where the burning was subsiding. Lucifer's neck stretched to the side eyes contrasting between black and normal.

"Get out of here Dean!" It took Dean a moment to register that it was Sam talking to him. The body before him looked as though its movements were completely robotic, a fight for control.

"Go!"

"S-Sammy! Sammy! No I'm not leaving you here!"

Sam began to walk backwards, the movement so constrained and so brutal.

"Sam! Fight him I know you can get him out of you." A shriek of anger sounded from Sam's throat as he thrust himself further back.

"No!" He cried to himself. Lucifer still dwelt dangerously within him. The pit came closer with Sam's defiance. Fire was tearing from the hole and Demon's were escaping with every second.

"You don't have to do this. There has to be another way." Dean's tone became angrier and angrier as he spoke.

"I do." Sam replied with and forcefully threw himself into the pit.

"No!" Dean yelled "No Sam!" he ran towards him. The ground began to shake and tremble.

"No!" he cried again, breaking as each moment passed. The ground moulded together and the pit could no longer be seen.

"Sam, oh God Sam!" Dean looked around frantically for something, anything. He saw Castiel sprawled on the ground like a stuffed doll. His coat stained with blood.

"Cas!"

Dean shook Castiel's body. "You have to wake up please Cas, we have to save Sam." Dean didn't notice the amount of Demons that were caging them in.

"Castiel please," Tears burnt his eyes as he began to feel the loss of his brother. Castiel groaned but came to, quickly sitting upright.

"We have to go" he said but Dean took hold of his shoulders and almost ripped through Castiels coat. "We have to save Sam."

"Where is he?"

"Cas, he went into the pit, please I need you to save him."

"Dean I- watch out!" Castiel took hold of Dean and threw him across the room as a trail of fire ran along the floor.

"I can't save Sam," he heaved his body up to face the Demons.

"You have to!" Dean nearly begged while grabbing the colt and firing at numerous Demons. Bodies dropped to the ground but there were many more to take their place.

"I can't save Sam but I can save you." Castiel yelled to Dean while taking out two Demons with his hands.

Chunks of rock began to rip from the walls and cascade to the ground. More and more Demons appeared. They were running out of time.

Dean and Castiel reached each other again. A brief moment passed as more demons began to appear. Castiel looked at Dean with a sorrow dwelling in his gaze.

"I am sorry for this." Dean became frantic at the statement.

"What?"

Castiel swiftly moved towards the crowding Demons, they were putrid with sins.

"Cas, no!" Dean cried.

The angel shredded his shirt with his hands. An insignia glowed a brutal red. "Lord please give me strength," he thought before turning to Dean one last time.

"Close your eyes."

Tears finally fought their way from Dean's eyes as he closed them tight. The Demons gravitated towards Castiel but soon realised what was happening. It was too late. An illuminate light exploded from Castiel and completely engulfed every single evil being that was inside the cave. Dean felt the Earth move underneath him. He heard the screams of the demons and he heard the screams of Castiel. Black smoke hung heavy in the air, the demons still dissipating. Dean fell to the ground and the cave collapsed.

Tevote: Hello there readers! Yes a slight cliffhanger...but figured we would just leave you with a taste of what we're writing about. Hope you like this story. Please feel free to criticise I'm sure some of you will have no problems with that. Feel free to tell us if you think some of the characters aren't portrayed too well.