Year: 2057

Dick Roman was a very successful business man. He was leader of Roman Enterprises, which owned Sucrocorp, and loads of other foody type businesses. He basically had access to the world's fodder. It took Cas and Dean a while trying to figure out why everyone was dying, but they finally sourced poison in the food back to Roman Enterprises.

They materialised in his room, Dean finally stabbing him through the neck.

"Humans are disgusting," Cas stated, remembering the dead bodies that had littered the streets

"Humans are fucking crazy. Let's go visit Sam."

The impala braked sharply. Barely bothering to park it, Dean leapt out of the car and sprinted to the flashing lights outside Sam and Jess' home, leaving Cas in the car. The winged man did not follow. He knew that Sam's heart condition was the most probable reason behind the ambulances, so reasoned there were only two possible events happening inside that house. Either Sam was dying, in which case, the paramedics needed all the room they could get to try and save him. Or Sam was already dead, in which case, Cas didn't want to intrude on Dean. He remembered when his parents had died, Dean hadn't wanted to talk about it, he mostly just wanted some alone time to grieve. Cas really, really hoped that Sam wasn't dead. He was a good man, and a good friend.

Cas spotted Dean running back out of the house ten minutes later, and got out the car to catch the crying man in his arms.

"Cas, you've got to save him, go back in time and stop him from dying," Dean sobbed into his arm, mostly to hide his face.

"Is there any way I can prevent it?" Cas said, not even daring to hope that the younger Winchester was murdered or was in an accident, or had died in some way that Cas could help. But Dean only shook his head lightly after recollecting himself, and traipsed away. From the direction Dean had left in, Cas heard a trash can being kicked to death.

Cas' heart sank. He hadn't really ever had to deal with the permanent death of someone close to him, not since Bobby and Ellen. He found himself walking over to the house, and finding Jess. As soon as the woman saw him, she flung her arms around him, weeping into his coat. He held on to her tightly, whispering "I'm sorry" over and over again.

Year: 2104

Eve had started out as a scientist, working on human improvement. She illegally bonded animal DNA with human DNA to make them stronger. Once her experiments were discovered, her grant was taken away and she got kicked off her team. She did not take this very well. One month later, she was a ninja robot spider guy, in Dean's words. She killed most of her previous science team, only leaving a few to turn into ninja robot spider guys too. With their improved strength and body armour, they were unstoppable, declaring war on anyone that got in their way.

Dean and Cas go back in time. Eve is sleeping. A few years ago, Dean had stopped bothering to fight it out. He didn't care that it was cowardly anymore, and he didn't get that sense of justice anymore, so they went back to Cas' old method. Cas covered Eve's face with the pillow until she stopped struggling.

"Humans are disgusting."

"Humans really are disgusting," Dean agreed.

Year: 2016

Dean was falling asleep in front of the TV. He had Chinese takeaway boxes still resting on his lap from his dinner, and the TV was showing reruns of Doctor Sexy. Not that he had been watching them, definitely not. The quiet TV and soft snores of Dean were suddenly interrupted by someone pummelling the door. Dean awoke from his slumber, spluttering and knocking the empty boxes to the ground. He leapt up to answer the door, just to stop them banging.

"Cas, what the hell?" he greeted his friend harshly. The man in question glared at him in response and entered the room without saying a word. Dean followed him in, closing the door with his foot. He looked carefully at the other man's face and noticed that his eyes were red.

"Cas, what the hell?" he asked, softer this time.

Cas looked back at Dean, wanting to tell him everything. How the horrors of the human race were getting to him, how he wanted to give up, watch the world burn. How he hated life and just wanted it all to stop. But then he noticed the boxes scattered on the floor, the soft guitar music playing from the TV. The room he was in was small and cosy. There were a couple of pictures of Dean and his family on the wall, and a worn, probably second hand sofa in the centre of the room. It was all so homey, and normal. The complete opposite to the war ridden world he'd just saved humanity from. Then he looked into Dean's eyes. They had not seen wars like he had. He probably couldn't comprehend such death and destruction, without wars in history to look back on. He only heard glimpses of it from Cas recounting his adventures, and they focused on the defeating of the bad guy, not the depressing tales of living in war. Castiel couldn't tell Dean he was contemplating giving up and leaving the world to burn. He couldn't ruin his innocent, naïve life. So all he could say was "What's the point?"

"What?"
"I don't see the point in living," he clarified.

"Oh. Well, there's a lot of point in living," Dean began, wanting to console his friend. "There's happiness, love, friendship. All that kind of stuff."

"I don't see it, Dean. I don't think I've been happy for a long time."

Dean worried his lip, deliberating his next move. He needed to show Cas that there was a point in living, and fast. The only thought that came to mind, was to show him how he felt about him. Dean drove the thought away, thinking it was stupid. How could Dean's attention make Cas see the point in life. Dean wasn't exactly a gift of God. But the more he thought about it, the less options he had. Plus, he had been meaning to do something about his feelings towards his friend soon anyway; for quite a few years now he'd realised he didn't just like girls. He was proud to call himself an equal-opportunity lover. It just meant more sex for him. But he'd also realised that whenever he was taking care of Little Dean, he'd be picturing dark hair, rough stubble and ebony wings...

Without analysing his decision anymore, Dean leaned forward and kissed Castiel. At first the man was taken by surprise, but after a few seconds started furiously kissing back.

Cas assumed Dean was going to show him sex. A lot of people really, really liked sex, so maybe it was worth living for. Cas was doubtful of this, but he'd never actually had sex before. He'd never really had the opportunity. Whenever he ventured to a bar, people would be way too fearful of his blatant abnormality to approach him.

Dean had been meaning to take it slow, but Cas was already poking his tongue into his mouth hungrily and sloppily, so Dean just let him. After all, this was about Cas, and about his happiness. Soon, Cas' kisses got more erratic, and impatient, his hips rolling forward slightly. Dean chuckled as he started mouthing at Cas' chin, then his neck, and then finally got to his knees. Cas' reaction was better than Dean had ever hoped for.

Cas looked down at him, cheeks slightly flushed as Dean slipped Cas' trousers down. He leaned forward to mouth at Cas' erection through his boxers. He moaned in response, his long fingers finding a place in Dean's short hair. Dean decided to stop teasing, and pulled the boxers down, then took Cas' dick in his mouth. He could already taste the salty pre-come as he started sucking at the head of it. Cas let out another moan, as Dean cupped his ass, taking in more of his length, and hollowing his cheeks. He felt feather flutter lightly against his hands. Unable to help himself, Cas started thrusting into Dean's mouth. Dean looked up at him, wanting eye contact, but Cas' eyes were firmly shut.

He continued sucking, eyes watering when Cas' dick hit the back of his throat. He could feel Cas getting near to the edge, so he begun humming around his length. The light vibration was almost too much for Cas, as his thrusts started to lose their steady pace, and he finally lost it when Dean swallowed around him. Hot come spilled into Dean's mouth, him managing to keep most of it in.

He pulled his mouth off Cas, licking off some stray dribbles, and then stood up to face Cas again. He was a bit shaky from the orgasm, and Dean mentally congratulated himself on giving Cas an awesome first time. After catching his breath, Cas smiled lightly at him.

"Thank you, Dean. This experience has been enjoyable. I don't think I will give up on living, just yet," Cas said evenly, turning to leave.

'Wait, you can stay if you want?' was what Dean tried to say, but instead a hoarse whisper came out, his throat sore and rough from what he'd just been doing. Cas didn't appear to hear him, and left, closing the door behind him.

Dean sighed, wondering if he'd just been used. He couldn't go out the next couple of days for the bruising around his mouth.

Year: 2113

There was so much suffering. So much destruction. Even Dean and Cas were horrified at the living hell before them. Dean watched in horror, as his faith in humanity finally disappeared completely. He turned to Cas, who had the same expression of disgust. He nodded darkly, and Cas grabbed his hand as the dark light started glowing around them.

The destruction. It was never ending. Cas was right in the first place. Humans were meant to kill themselves. And they didn't stop at destroying themselves, as they tried to take the rest of the planet with them. In fact, if you weighed it all up, human kind had done more bad than good. So what was the right thing for them to do? Save humans from themselves temporarily, or save humans from themselves permanently. After all, it's better to have never lived at all than die.

Dean looked around. There were no buildings, no side walks, no sign of human kind at all. The two of them were stood next to a massive body of water.

"In a few seconds, what is to become the human race is going to drag itself out of this water," Cas said.

Dean watched as a little grey creature that resembled a fish emerged.

"Huh. Big plans for that fish then," Dean commented.

They looked at it.

Fin.

A/N thankyou to everyone that read this, and I hope you enjoyed it:) reviews would mean alot to me so pls tell me what you think guys and thanks again!