Disclaimer: I don't own Supernatural and I don't own Glee. I also don't own a conversation that takes place in this fic between two characters. (belongs to my friend Erin - explained in notes below.)

Title: Unexpected
Summary: AU. s9 finale reaction fic. Two part fic, PLEASE DO NOT READ UNLESS YOU HAVE SEEN THE SEASON 9 FINALE. This was not how Sam expected things to go regarding Blaine's fight against Metatron. Not at all.
Rating: K+
Genre: Angst/Drama
Pairings: Destiel, Seblaine
Spoilers: 9x23: Do You Believe in Miracles.

Notes:

This Blaine Winchester fic is written for my friend Erin - we were kinda screaming at each other over on tumblr after the finale and this fic is a result of that.

warnings: contains character death, brief talk of hate crime.

Basically Blaine takes Dean's place as the one with the Mark of Cain and Sebastian goes to Heaven with Cas and Gadreel to find the tablet and break it. Everrything is painful and nothing is okay. That's all you need to know about this fic.

You can all thank Erin for this she wanted long and painful and I hope I delivered.

Also I have to credit Erin for Sam and Blaine's final conversation she wrote the majority of it, I just fit it into the fic. I hope it came across okay!

Part 1:

Sam could hear crying as he climbed the stairs of the crappy apartment his father had rented out. He found his three-year-old nephew sitting on his father's bed, crying, his stuffed moose held tightly against his chest.

Speaking of his father, where the fuck was Dean? The fifteen-year old sighed and moved to sit next to Blaine, who immediately crawled into his lap. "Blainey? You wanna tell me what's the matter?" Sam asked as he wrapped his arms around the toddler.

"Daddy's gone," Blaine hiccupped, hiding his face in Sam's shirt. "He left with grandpa."

Sam frowned - why would they -? Then it hit him: Dean and their father had gone on a hunt, sticking him with baby-sitting duty. Not that Sam minded, of course. He loved Blaine.

"Buddy you know they just went on a hunt, right?" he said gently, sliding his hand up and down Blaine's back in slow circles to calm him.

"But - But - didn't say good-bye." Blaine protested.

Sam tried to pass it off with a sad attempt at a joke. "Well you know your dad, he doesn't do mushy stuff."

"'Cept when it comes to me," Blaine said stubbornly. "Daddy says I'm a...a...'ception."

Sam laughed at Blaine's stubborn expression and ruffled his curls a little. "That you are, squirt. He'll be just fine, Blaine. I promise." he paused. "What d'you say I go put on some cartoons and we make some pizza for dinner?"

Blaine's eyes lit up and he hugged his uncle hard.

"You're the best, Uncle Sammy!"

"You ready to gut this bitch?"

Blaine barely heard his uncle's words as his fist slammed full force into his father's face, knocking him to the ground. Sam barely had time to dodge the nineteen-year-old as he tried to do the same.

"Blaine -" Blaine didn't seem to hear him. He turned around and ran toward the homeless camp.

Sam swore loudly, checked to make sure Dean was alright (Blaine had knocked him out), and then ran after the teen.

By the time he got there, the fight had already started - if you could call it that. Metatron was brutalizing Blaine's body; the teen was lying on his side, clutching the First Blade in one hand, his face a bloody mess.

Sam ran forward, trying desperately to think of something he could do that would help Blaine get the upper hand. But then he saw something that knocked the air from his lungs and froze him where he stood.

Metatron thrust a silver blade straight through Blaine's chest. Blaine let out a strangled gasp before his body fell onto its side.

"No!" Sam managed to scream as soon as he'd regained control of his body. He broke into a run, not even noticing the sadistic, smug smile Metatron threw his way.

This was not happening. This was so not fucking happening. He was not going to lose his nephew like this. He helped maneuver Blaine upright into a sitting position.

Just then, a noise like thunder broke out over their heads. The room shook violently for a moment, and then stopped. Sam was on his feet in a second, drawing his own blade as he lunged at Metatron.

But Metatron disappeared.

Sam looked around helplessly.

Damn it!

"Do you think it worked?" Sebastian stared down at the shattered tablet hopefully.

"It should have broken his power completely." Cas replied.

"Well played Castiel." Sebastian whirled around at the same time Cas's head jerked up from where he was sitting at Metatron's desk. "Obviously, you, Gadreel, and your son's little pet there managed to turn a few dead-enders against me."

"Gadreel is dead." Cas replied coldly.

Metatron was silent for a moment, and then he nodded. "Ah. So Gadreel bites the dust. And the angel tablet, arguably the most powerful instrument in the history of the universe, is in pieces and for what again? The abomination you call your son?" Sebastian let out a snarl but Cas touched his arm briefly, giving him a warning look. He looked at his hands in his lap. "That was your goal, right? I mean, you draped yourself in the flag of Heaven, but ultimately it was all about saving him, right? Well guess what? Blaine's dead too."

Cas's head jerked back up at his enemy's words.

He's lying...it's a trick...the tablet...he...No!

All he could do was stare up at Metatron, horrified as his eyes filled with angry tears. Sebastian stared at the angel incredulously before letting out a strangled scream and lunging across the office, pulling an angel blade out of his jacket.

"Bas no!" Cas cried, but it was too late. With a flick of his wrist Metatron sent Sebastian flying back across the room, slamming him into the wall.

Metatron turned his attention back to Cas. "You're sitting in my chair." he said coldly.

Handcuffs sprang out of the chair arms and wrapped around Cas's wrists.

Crap.

"It's my fault."

Sam glanced at Dean's slumped over form in the cramped uncomfortable hospital chair. His big brother's muffled snoring was starting to get on his nerves but he tried to tune it out for Blaine's sake.

Blaine had only woken up from a two month long coma mere days ago, the coma resulting from his injuries inflicted by three demon-possessed assholes at a school dance. His date had been killed. Naturally this put the apocalypse on the back-burner - at least, for the time being.

"It wasn't." Sam told him calmly.

Blaine shook his head. "I took Kurt to that dance - I knew what would happen -"

"Blaine." Sam leaned forward and took the fifteen-year-old's hand in his, giving it a firm squeeze. "It wasn't your fault."

Blaine's eyes filled with tears and he began to cry. "If I'd just realized - If I'd known they were demons - I -"

Sam got up off his chair and wrapped his arms around the injured teen carefully.

"It's gonna be okay, squirt. I promise."

"Uncle Sammy..." Blaine whispered, blinking slowly at the older man. Sam was frantically checking the wound in Blaine's chest, trying to assess the damage. "You gotta get out of here before he comes back."

Sam looked up at him and shook his head. "Ssshh. Save your energy, okay?" he pulled a rag from his pocket and put it in Blaine's hand before moving it to press firmly against the wound. Blaine let out a pained cry at the contact and Sam shushed him again. "We'll stop the bleeding - Your dad and l - we'll get you to a hospital - or find some spell. You're gonna be okay!"

Blaine shook his head weakly, leaning it back against the cement blocks behind him. "Listen to me. It's better this way." he murmured. "The Mark...it's making me something I don't wanna be."

Sam took Blaine's arm and wrapped it around his neck before using his other arm to wrap around Blaine's waist. "Don't worry about the Mark. We'll figure out the Mark later, just hold on."

He pulled Blaine to his feet and they headed for the front of the camp.

"You'll never get away with this." Sebastian was leaning heavily against the wall as he pulled himself upright.

Metatron didn't take his eyes off of Cas. "Get away with what? Cas you told a silly story to a group of less than believers. I'll clean up your mess in an hour."

"You give our brothers and sisters far too little credit." Cas told him. "They will soon learn that you have been playing them."

Metatron laughed. "And then?" he paused briefly, as though waiting for one of them to answer. "They will do nothing because they are frightened little sheep following my crook where ever it leads! And where I'm taking them? Back to our rightful place atop this mountain of human shame and excrement? When that happens, trust me, they're not gonna care how they got there!"

"About what you said the other day."

"I thought it didn't bother you."

Blaine rolled his eyes. "Look, I already told you Dad was a fucking mess and Cas was MIA. I saved your hide back there. And I saved your hide at the hospital." he glared at his uncle. "Maybe I don't think things through a lot - but what I do, I do it because its right."

Sam folded his arms. "That's the problem."

"Hey -" Dean put a hand on Blaine's shoulder but he shrugged it off.

"Don't defend him Dean -"

Dean stared at him incredulously. Blaine sighed.

"Look, I couldn't let you die. Whatever you're thinking, I did this for you - for Dad -"

"So killing Kevin, that was supposed to benefit me?!" Sam sighed exasperatedly.

"I never said that!" Blaine yelled. "That was an accident, and you fucking know it was that damn angel and not you! Situation was reversed, you'd do the same thing!"

Sam shook his head sadly.

"No, B. I wouldn't. Same circumstances, I wouldn't."

"What happened with you being okay with this?" Blaine gasped as he and Sam staggered back toward the exit.

"I lied," Sam said shortly.

Blaine let out what Sam was sure he meant to be a chuckle, but what came across as a wet cough.

"Hang on, bud." he whispered. "God, please hang on."

"You know why you could never quite pull it together, Castiel?" Metatron taunted, now standing right in front of his captive. "Why you're sitting here with your grace slowly burning away, and your reputation long extinguished? No curiosity." he shook his head. "You didn't read enough." he lifted a bloody silver blade in his hand and Cas felt sick as he watched Metatron clean the blood - Blaine's blood - from it. Somewhere behind him he thought he heard Sebastian crying. Obviously he'd been affected by the sight of the blood too. "You never learned how to create a good story."

"No." Cas managed to choke out, his eyes full of tears again. "But you did."

He turned away from Metatron and looked at the old machine that the other angel had used to override Angel Radio.

The light was on - it meant Metatron had been heard by angels all over.

Before he could do anything, angels stormed into the room and grabbed him, one, Hannah, rushingn to un cuff Cas. Once he was on his feet, she moved to Sebastian.

"I'm fine -" he started, but her fingers were already at his forehead, and he gasped as he felt what had to have been broken ribs mending under her grace. "Thanks."

She nodded and quickly returned to Cas's side.

Cas's eyes fell on the blade that the now captive angel was still holding and reached for it. He tried to ignore the blood that still stained the metal, and took it, his hand shaking slightly as it wrapped around the hilt.

He had a decision to make.

"Uncle Sammy...Sammy hold up." Blaine knew he wasn't going to make it much longer...hell he'd be surprised if he made it thirty seconds more.

He felt so weak...so tired...so much pain...

"Okay. Okay." Sam helped him stay upright as they came to a stop.

"I need to say something," Blaine told him weakly, gripping Sam's shoulder as hard as he could. "I'm sorry for everything I did...everything I've done to you...Dad...Papa...It's all my fault." He licked his lips, wincing at the taste of blood on his tongue. "I deserve to rot in Hell." tears began to slide down his cheeks but he didn't notice.

His knees buckled suddenly, pitching him forward against Sam's chest. Sam held him gently and rocked him a little, trying not to aggravate the knife wound any more than it already was.

"Hey. No. Look at me. Hey!" he said urgently and Blaine felt fingers curl under his chin and push upward, until he was looking directly at Sam. "You don't deserve that, Blaine. You don't deserve any of that. The stuff the Blade made you do? That wasn't you. I've been there. Stuff like that controls you, and makes you do things the real you would never do." he hesitated and then tried to smile. "It's not like you let out Satan, right?"

Blaine's brow furrowed in confusion.

"That wasn't your fault. You were tricked." his lungs hurt like hell but he tried to draw breath again, resulting in a violent coughing fit that had blood dribbling down his chin. "You're still one of the best people on this shitty earth." he paused and then smiled a little. He was running out of time fast now, and he needed to let his uncle know something. One last thing. "...and I'm proud of you."

And with that, his eyes rolled back as his head tipped forward again and he let out one last shaky breath before going still.

Oh God. No. Nononononononononononononononono.

"Blaine?!" he desperately lifted what was now his nephew's body up, his hands clutching at Blaine's face desperately. "No. No, no, no. Blaine!"

Blaine didn't respond.

He was gone.

Thoughts? Reviews are welcome and appreciated. Constructive criticism is accepted. No flames please!