Angel's Pet

This will contain non-con, dark themes, beatings, slash Cas/Dean and a master/slave relationship, BDSM I guess. Really dark. If it offends you, don't read! Really serious stuff, not for kiddies!

Disclaimer: I don't own any of the SN characters. I just love to play with them.

This honestly just came to me one day and I swore I wouldn't write it until I was finished with my other fic ( I also wanted to do a less dark fic but that's all I seem capable of writing) but it wouldn't leave me alone! It is set 6 months after S5 Ep22 where, instead of being put in the pit, Lucifer survives. So here it is, enjoy!

Chapter 1

The birds scattered as five men ran through the alleyways, weaving between bins and cars. All of them were panting ragged breaths as they raced to their destination. They rounded the final corner, one staying behind to see if they were being followed. At that moment three figures came into sight, their black eyes stared at him menacingly.

"Dean Winchester. The master wishes to speak to you." One smiled at him as they stalked forwards. "But, of course, he only wants you alive, didn't say we couldn't have our fun first." He sniggered as he stepped forwards.

"Dean! Hurry up!" He heard Sam shout from behind him. "We've gotta get out of here."

"Sammy go, I got these." He threw a bag backwards to him, the fruit of his day's labour. It was enough to feed all of their group for two days. Sam grabbed the bag and ran across the salt line to their hideout. At the moment they had set up camp in an old warehouse, one of dozens of identical ones in the city. It was well protected and nothing the hunters had heard of could get in. Symbols covered the walls, ones that warded off angels, demons and everything in between.

Dean pulled the knife from it's sheath on his belt, it was the same one they taken from Ruby all that time ago. It had become his prized possession, after the first month they had ran out of ammo for their guns, even after being careful and now they had to resort to using any kind of weapon they could find.

He stepped towards the advancing group, using their arroganceagainst them, none ever took him as a serious threat. He slammed the knife deep into the chest of the first one before he knew what was happening and after the light flickered from it's eyes he let the lifeless body fall to the ground. He disposed of the next two just as quickly, they only managed to land one blow in his stomach. He was a better hunter than he had ever been, able to take on an army of demons no matter what state he was in. The only thing he thought about was protecting his new family, he would die for them because he was still a Winchester and that's what drove him on. He had nothing else to live for.

Dean turned, leaving the bodies for now, he wanted to check on the group. He opened the small side door, stepping into the dimly lit warehouse. Everyone had assembled around the centre to welcome the hunting group home, to see if they had arrived safely and luckily there were no nasty wounds. Dean quickly made a headcount of his men. Twice. They were one short.

"Where's Ben?" A woman, he recognised her as Anita, came up to Dean, her eyes wide with the fear of the news she was about to receive. He didn't say a word but she already knew. Dean just stepped forward and wrapped his arms around her in comfort, allowing her to collapse into him. That was the problem. People grew so close in a disaster, they depended on each other. Almost everyone had someone they cared for closer than the others, whether they were couples or not it didn't matter.

They had dwindled from a group of more than one hundred survivors to twenty in just six months. Bobby had been the first to die and many had followed him. Some had been injured and killed in battle, others had become possessed by demons and the rest had . . . disappeared, their bodies never found. They lived off what they could steal from empty houses, which wasn't much but they were better off with each other than in the cold world that the Earth had become.

After a few minutes Anita pulled away and disappeared into one of the many smaller rooms they had created in the warehouse, her sobs still audible as she tried to silence them. He didn't pursue her, he knew she needed some space. He turned to the rest of the group, all of them silent in respect. No one moved or said anything as he tenderly moved round everyone, his eyes meeting every agonized person as he searched for any problems, mental or physical.

Dean hated the suffering that reflected in their eyes, the was it gave way to hope as they stared back at him. They all depended on the hunter for survival, many of them had never heard of monsters and demons before the creatures had come to their town. All of them were survivors, their families murdered and their houses and possessions burned to the ground.

After a few moments everyone continued with what they were doing, although the air of depression still hung over them. Sam was sat with his girlfriend, Emma, everyone but Dean had found another soul to cling to. He smiled as he watched his younger brother handle the child that she handed him awkwardly in his large hands. It wasn't his brother's but he treated the baby like his own son. There were a few children with them, some orphans. The Chaplains had taken it upon themselves to look after them all. They also had two kids, age 3 and 6, both of them too young to understand what was going on, he hated trying to explain to them why they couldn't go outside on the sunny days.

Dean just sighed at the sight. The kids chased each other around the large main room, shooting at each other with unloaded guns and pretending to die dramatically if they were shot. Others were busy making a meal for the night or were cleaning and putting away the day's tools. As far as they knew they were the last free survivors on Earth, the rest had been killed, imprisoned, possessed and God knows what else. Dean felt the utter hopelessness wash over him once again. There was nothing he could do, there was only one person he knew could change this but he was long gone.

Deeming that his frantic thoughts were from his lack of sleep, he slipped into one of the empty rooms, his appetite had quickly abandoned him. He knew he wouldn't sleep well, he never did. Once his dreams had been plagued by fear for his brother, then of hell but now it was that night. It would replay itself to him, reminding him of what he had lost.

OXOXOX

Dean pushed the Impala faster, they needed to get to Stull Cemetery right now. Sam sat next to him was just as on edge. Chuck had called, said Lucifer had found another vessel, a powerful one, and things were going to go awfully wrong. It was confusing for all of them. First Chuck had seen Sam say yes, the but it didn't happen. One moment, one vital word had changed everything. Sam said no.

Cas had gone bat-shit crazy when he found out they were going to confront the two archangels, he'd said that they had gotten what they wanted. The two brothers were alive and had been left out of the fight. The angel had tried to prevent them from leaving, doing everything he could and eventually Dean used an angel symbol to banish him.

Dean felt bad for it but he couldn't take it back, they had to get there now. They could still fix it. As the Impala flew through the gates of the abandoned cemetery Lucifer and Michael came into view for the first time. They could easily tell who was who. Michael was still using Adam as his vessel and there was a man that neither of the brothers recognised, just as Chuck had said. The man had the same brown hair as Adam, as the Winchesters.

The hunters exited the Impala with practiced ease, managing to look calm and collected amongst the anger and hatred that crackled in the air.

"Well, Lucifer, looks like you got a new meat-bag, congratulations!" Dean spat sarcastically at him.

"Leave, now. Both of you. We don't need you any more. Actually, we don't even need you alive. How about it brother, one more game together, for old times sake." The new Lucifer smirked and looked over to Michael who was sat, cold and calculating but he didn't respond.

"No, go on, I'm curious. Where did you find your backup plan?" Dean pressed as he went to lean against the bonnet of his beloved car in a clear sign that he wasn't moving.

"He's Adam's brother." Michael spoke for the first time. "There was a reason John went to Kate for help when he was injured. They already knew each other and had a two year old son named Lewis. Quite interesting isn't it, how everything fits together. Adam hid him, was killed as he protected him. They were both Winchesters and loved each other in the way you love Sammy."

Sam didn't even bother to correct the archangel but he glared at him. Both Winchesters stood, absorbing the information, seeing if there were any flaws in the story they had been told but found none, they had nothing they could do. They couldn't stop it. Dean grabbed the Horsemen's rings from his pocket and threw the key at Michael.

"I guess you'll be needing them, then." He muttered in defeat. "Sorry Adam. Lewis, it's a shame we didn't even get a chance to meet properly." He turned and motioned for Sam to do the same, snapping him out of his thoughts. Sam had been staring at Lucifer's vessel the whole time, more shocked by the news than his brother.

Sam was first in the car but Dean held back at the sound of Michael shouting after him.

"Really, I don't believe that's it from the great Dean Winchester." He was right, Dean had a plan to end this, even though it was completely insane. He had to try and change the world's fate. He got into the car, ignoring Michael's remark and started to reverse it.

Just as he was about to go ahead with his plan and charge his pride and joy into the devil, the car was stopped and Dean felt himself being torn from his seat. He was slammed up against his door and was left face-to-face with a really pissed off Castiel. Sometimes he forgot that Cas was an angel that could kill him so easily but not at that moment. He was sure the angel was the powerful being he boasted to be and was going kill him.

"Castiel." A powerful voice boomed from across the cemetery, his voice light and amused as he watched the situation unfold. "Did you consider my offer?" Lucifer appeared next to the men, forcing them to break apart.

"What offer, Cas?" Dean demanded warily.

"It's none of your business." Cas spat back whilst tightening his grip on his shirt, unusually flustered.

"It will be his business if you care to accept." The devil breathed into his ear, causing shivers to run down the angel's spine. "What else are you going to do? Heaven doesn't want you. Your powers will soon dwindle to nothing. Are you going to stay here, your powers limited with no-one but these pathetic excuses for humans. They don't treat you with the respect you deserve but if you come with me you can have power beyond your imagination. Anything you want at your fingertips. All I need is your help."

Dean watched as his angel seriously considered the offer in shock. This couldn't happen. It couldn't end like this. Dean could almost feel the tears fill in his eyes as he watched Castiel nod slightly.

"NO!" He screamed, too late. "You can't do this!"

"Yes, Dean. I can." He disappeared for a moment before returning with the key of rings in his hand. "And I will." Castiel spared one more glance to his dearest friend before turning to his new leader, the man they knew was gone and he was replaced with the warrior he had once been.

They were eerily well synchronised as Castiel opened the gate and Lucifer tackled his brother towards it, holding him close for a moment and whispering a brief "I'm sorry" before pushing him into the endless black hole.

The gateway closed behind the archangel and the two monsters turned back to the brothers.

"Congratulations, Dean. I believed you just helped me take over this world." Lucifer chuckled darkly before leaning into him intimidatingly close. "Cross us again and you will wish you were dead." He snapped his fingers and everything went black.

OXOXOX

Dean jumped out of his bed at the sound of knocking, instantly on alert.

"Hey, Dean. Are you okay?" He instantly relaxed. Sam knew, of course he did. Dean never spoke a word of it, not when he woke up screaming or when he went to Sam for comfort but after so many years of them being together they took it in their stride.

"I'm fine Sammy." He answered, his voice rough, the only evidence of his disturbing dream.

"Well the food's ready when you want it."

Dean pulled himself up, trying to shake off the dream and went back into the main hall to eat. Dean had prayed to Castiel for weeks after that; apologising, begging for him to come back. If Dean was ever truthful to himself he would have realised how much the angel leaving him had changed him. The hunter had even avoided talking to his brother unless it was absolutely necessary.

Sam noticed that his brother missed the angel, probably too much, but never commented on it. There was nothing they could do now. Sam had done his fair share of calling for Cas, mainly for Dean. He never asked him to come back, instead he talked, about how they were but mainly about his older brother and how he missed the angel, hoping that he would listen and know, just know what was going on.

OXOXOX

Castiel reclined farther into his seat, ignoring the deadly glares he earned from his brother.

"Are you going to explain this?" Lucifer asked him,sweeping an arm dramatically to the body that lay on the floor. "This is the third one this week."

"Well, maybe I just didn't like him." Castiel pouted like a child that had broken a new toy.

"The was nothing wrong with the creature! You just enjoy killing them to annoy me. I get you one that will do whatever you ask. You say that it doesn't do anything right. I get you a human straight off the street but you can't be bothered to train it." He pulled a hand through his hair as he calmed himself.

"I don't require one. I am just fine on my own."

"You're not, you never do anything but work!" Castiel just shrugged his shoulders, he was used to always having something to do, someone to be with and now he was utterly alone and bored. There was no war to fight and any job was taken care of by the demons. He spent a lot of his time patrolling and didn't know why Lucifer complained so much. Castiel had single-handedly taken out several resistance movements.

The devil snapped his fingers, removing the body, Castiel could have done it but Lucifer knew that he would refuse, in the six months that they had spent together he knew Castiel was nothing if not stubborn.

"You're going to get a human Castiel. I don't care if you kill the next one and the one after that but I'm going to find one you like."

Castiel sighed, he was sure he would care as much for the next one as he had for the ones before. Lucifer knew that Castiel was more inclined to men, it didn't bother him but the reason behind it did. Dean Winchester. The only reason Lucifer tried so hard to find Castiel a pet was because he was still crushing over Dean Fucking Winchester.

When he took Castiel in he had been uncharacteristically ready to follow him, ready to kill, even. To the archangel's dismay he was sickeningly innocent and so he had spent months teaching him. The young angel now knew everything his brother had to offer, torture methods, slave treatment and had tried endlessly to move him away from his old life but he remained head-over-heels for the older Winchester brother.

"I hope you have a nice day, then." Lucifer said before disappearing. Castiel let out a huge sigh, his brother never gave up when he got an idea in his head.

"Jack!" Castiel barked, purposefully sounding angry to scare the boy. It was very entertaining to watch.

"Y-yes Master?"

"Can I have some ice cream or something. I'm incredibly bored." He didn't intend to eat any of it. Well, maybe some. It was his second favourite human food. Cheeseburger being the first, of course.

"R-right away, M-m-master." He stammered before running out of the room. Castiel didn't comment on it, the kid was new. His team had only found his gang's hideout a few weeks ago. Most had died and the ones that seemed useful they had taken in. Humans were useful for any job they didn't want doing themselves and very easy to control.

Castiel had two, now; Jack and Claire but the numbers and names easily changed whenever the angel was in a bad mood. He just sighed and picked up a book. They didn't actually have some ice cream in the freezer so it would take Jack a while to come back (because he wouldn't dare come back empty handed). Castiel just chuckled to himself as he imagined the boy running around searching for the snack, absolutely terrified.

Updates for this may be slow as it is bottom of my priority pile but if inspiration hits me, you'll be the first to know!

Please comment and tell me what you think! I hope it wasn't too cryptic, I have this habit of not telling readers enough 'cause I know what's going on!

Now remember this is a test run, comment and if you like it I will continue, if not I have loads of ideas ready to go!