Next chapter will be posted on Saturday.
Constructive criticism welcome!
*WARNING: Deans demon side reveals itself, and it's pissed!
A couple hours later Dean tensed as he felt the angels presence in the house. He jumped up from the bed and yanked hard at the unyielding handcuffs. His black eyes looked feral as a caged animal as he screamed to the angel, "You take him and I'll kill you, angel bitch! I swear to the devil and your God, I'll KILL you!" He could feel himself losing control as the demon in him took over in response to his panic and rage.
Sam jumped at the demons fierce threat as Castiel glared in the direction of the voice. "What happened?"
Sam sighed wearily, "He wasn't gonna let me do this so I handcuffed him to my bed."
The angel whipped his head around, "You did WHAT?!" Castiel asked, slightly shocked. "Did he hurt you?" He asked as he spotted the hole in the kitchen wall.
"No! No. He just... Doesn't think I should do this."
The angel cocked his head curiously. "Why? I thought he wanted to help you."
Sam looked away, "Guess he changed his mind."
Castiel wasn't content with that answer so he briskly walked to the bedroom, Sam jogging after him. "What're you doing, Cas?!"
"Getting answers." He snapped in response.
They opened the door to find Dean covered in blood, his shirt ripped so badly that it was barely staying on, his black glaring eyes rabid. He snarled and lunged at the angel, sounding demonic and crazed.
Sam gasped and backed away at the sight. He knew Dean was holding back his demon instincts, he just never knew how much. Until now. He saw no sign of the kind man that kissed and cuddled with him every night, all Sam saw was the demon.
Castiel fisted Sam's shirt, stopping his retreat. "You did this, you're staying." The angel snapped before turning his attention to the lunging demon.
"Why won't you help Sam catch Zepar tonight, demon?" Castiel asked loudly, hoping there was enough human still conscious in the demons mind to answer. He had never seen this before and had no idea what to expect.
"Zepar will take him. Hurt him. You have no FUCKING IDEA how strong he is. He'll kill you and take Sam to play with." He growled, his attention snapping to Sam. "He is MINE!" The demon snarled. His ebony gaze glared black anger at the hunter.
Sam was terrified, he had never seen Dean so demonic and angry before. He shivered as he hid himself behind Cas.
The angel squinted his eyes as the demon stopped fighting the cuffs and glared over his shoulder. Cas glanced back, seeing the trembling hunter behind him. He brought his attention back to the demon. "Why do you think he'll kill me?"
The demons feral gaze snapped back to the angel at the sound of his voice as he lunged at him again. He wished he could sink his teeth into the traitorous pigeon. "When Zepar was an angel he was stronger than you, so much stronger. There's a reason he was Lucifer's right hand man and friend, you dumbass feathery bitch!" He snarled, lunging at Castiel again.
Blood dripped from the demons cuffed wrist to the floor, yet he didn't even flinch as he lunged again.
Sam cowered and whimpered at the sound of the word 'bitch' and the demons handcuff chain popping as he lunged over and over again. He leaned against the wall behind Cas and covered his ears with his hands, squeezing his eyes shut.
The demon froze as he heard a familiar whimper.
Castiel watched the demon closely, studying his reaction before he stepped out of the demons way so he could see Sam.
The demon saw the hunter was halfway into a fetal position, his eyes scrunched shut and his hands over his ears. He growled softly and tried to approach the hunter. He snarled in rage as he hit the end of the cuffs and suddenly attacked the cuff on his hand viciously, chomping and biting it as he pulled with all his strength to break it.
When it didn't break he shot back up to standing and stood quietly, his black orbs glaring at Sam as he growled softly. If Castiel didn't know any better, he'd think the demon was purring to the hunter. The angel cleared his throat. "What d'you mean when you say Sam is yours?"
The demon lunged at the sound of the angels voice. "He is mine!" He snarled again.
Castiel nodded patiently, glancing at Sam who was regulating his breathing to calm himself. Like Dean had shown him.
"Yes, he's yours. What does that mean to you?" Cas asked curiously.
"He is mine. My mate. Mine!" The demons demonic voice snapped in anger at the winged bitch that wanted to steal HIS hunter.
"Your... Mate?" Castiel asked in shock.
The demon ignored him, glaring intently at Sam. He shifted from foot to foot restlessly, the cuffs not allowing him much pacing room.
Sam had calmed down enough to listen in. When he heard the demon say he was his mate his jaw dropped open. It took him a minute to recover enough to talk to Castiel. "What the fuck is he talking about, Cas?" Sam's voice was panicked.
The angel shook his head slowly as he stared in wonder at the demon. "I don't know. So little is known about demon hybrids. Perhaps the need to find a mate in humans is intensified in a hybrid, like sense of smell and strength."
Sam slid to the floor, still in shock. Castiel cleared his throat awkwardly. "Sam, I can't take you tonight. I need to check and see if what Dean... The demon... Whatever, said about Zepar is true."
Sam nodded, lost in his head at Deans admission.
"I need to go."
Sam shot up from the floor. "Cas, wait! You can't leave me alone with him!"
The angel paused, galcing at the demon. "I honestly don't think he'd hurt you, Sam. You heard him, you're his mate. Whether you like it or not." Castiel snickered, trying to hide his amusement.
Sam glared daggers at the angel. "Not funny Cas!"
"It is from my point of view!" Castiel laughed.
He quickly sobered as he replied, "Would it really be all that bad for you, Sam? I know you're lonely. I also know, other than that time he caught you, you haven't hurt yourself since Dean moved in. Would being his mate really be such a bad thing?"
Sam sighed and glanced back at the demon, who growled and stepped towards the hunter at his look. "When he's like this? Yeah, kinda!"
The angel smirked. "I know you won't like this but the best thing to bring him out of this state would be to release him. Once I'm gone, of course. He won't hurt you, but me... "
Sam's eyes bugged out at the suggestion. "Are you nuts?! Look at him!"
"I have been. More like studying for the past half hour, really. And I've noticed that he's calm with you. Well, as calm as he can be."
Sam looked skeptical.
"How about this, let him go. If I'm wrong call for me and I'll come back and knock him out."
Sam glared at the angel. "'If you're wrong'? How am I supposed to call for you 'If you're wrong' and he kills me or knocks me out, ties me up and gags me? What then?"
Castiel sighed, irritated. "Sam, I really don't think that would happen. Otherwise I never would've suggested letting him go."
The demon listened to them bicker. He glared at the angel, wishing with all his might he could eat his organs and bathe in his traitorous blood in repayment for trying to steal his mate. He growled under his breath as he heard Sam's heart rate rise in fear as he listened to them talk about him.
Dean had no idea how to bring himself back from this state, he had only been like this once. The only reason he came back from it then was because IT had killed... Everyone. Blood had been everywhere, the place resembling a human slaughterhouse.
He could watch but do nothing. He had no control over himself, the demon in him was in charge now... And it was pissed at Sam and Castiel's betrayal. Dean was shocked when he heard the demon utter the word 'mate' in reference to Sam.
Suddenly, things made sense. Why he felt the urge to protect Sam, to stay with him, to care for him even after the hunter had captured and hurt him. When he had said Sam was his while he was asleep it had felt... Good. Right. He had no idea it meant this! That the demon had chosen him as his mate. God only knew why, cause Dean sure as shit didn't!
He tried to fight for control, but his demon side was friggin strong, and it wasn't done yet...