A/N: This is just a really quick fic that I wrote after watching the new episode, Blade runners. After seeing Dean hold the first blade and seeing that look in his eyes, I got scared and this idea popped into my head. It's really short, but I hope you enjoy it anyway. Thanks!
Sam stares at his blank faced brother, still holding the blade in his hand. Dean had finally killed Abaddon.
"Dean?" he called. "Dean…it's okay…you did it." Dean stepped closer to his brother. "Wh-what are you doing?" Sam stuttered. Dean inched towards Sam. "Dean, put the blade down." Sam began to feel scared. That's when Dean thrust the blade straight through his brother's abdomen. Sam stared at his brother in shock as he began to feel the pain. He tasted blood in his mouth. "Dean?" he choked out. Dean stared at his brother blankly and then pulled the blade out of Sam's stomach. He was still staring at Dean in horror as he fell backwards and his whole world went black.
Dean went into a trance. The only thought in his head was "Kill!" and the only feeling he felt was power. He wasn't entirely sure what he was doing. He felt as if the blade was controlling him. Dean loved the feeling. He felt more powerful than ever. He saw his target. His brain said "Kill Abaddon." He did so. He felt strength in his kill.
It wasn't difficult. The blade did all the work. Dean had finally done it. When it was all over, Dean expected the feeling to leave, he hoped that it would just die off with Abaddon. But it didn't. He still felt compelled to kill. Heneeded to kill. He needed to feel that strength again. Dean's body moved without his volition.
It was only when he felt his brother's blood on his hands and saw the look on his face when he realized what he was doing. He immediately fought against it, screamed, trapped inside his own head, as if he was posessed, but worse. He wasn't posessed. He couldn't blame anyone else for his actions. It was just him. Dean watched his brother fall to the ground and saw his eyes close. He saw the look of betrayal on his face.
He was in a bad dream that he couldn't control and that he couldn't escape. Mercifully, the blade fell out of his hand and he snapped back into reality. It took him far too long to come to his senses. When he did, Dean saw his brother bleeding out on the floor. "No…NO!" he screamed.
He knelt down at his brother's side and saw the wound that he had inflicted. Clearly, a fatal wound. Dean screamed in agony. How could he have done this? "Sam? SAM! SAMMY!" he yelled. It didn't take him long to find out that his brother wasn't breathing. "No…No, please no. PLEASE NO!" he screamed but there was no one there to hear him. Dean sobbed, holding the body of his dead brother. Never had Dean felt more regret in his life.
A/N: Thanks for reading! Hope you liked it. Leave me a review if you have a minute. I really appreciate it. Thanks!