A/N- Drabble. I wrote this in fifteen minutes. I don't know. I just finished my English exam and I have Physics in a few days. Pity me.
Dean Winchester was a surprisingly insecure person. He was constantly asking Cas 'why me?' He simply could not understand why Cas would choose him, when he could have had anyone on Earth or in Heaven. Dean was far from a good person- he had killed people, too many to count (although, admittedly, most of them had been possessed by something at the time); he drank too much; he was constantly paranoid; and he had a terrible taste in music. Whereas Cas was an angel. He was good. He was a bit thick sometimes and annoying as hell when he didn't understand sarcasm, but he was trustworthy and loyal and powerful and basically he could do whatever he wanted. Dean was only one person in billions- what made him special?
But Cas asked the same questions about Dean. He didn't voice them as often, but they were there, lingering just below the constant query of am I doing the right thing. Cas was a fallen angel- he had disobeyed, and he still found it difficult to comprehend exactly why that didn't seem to matter to Dean. Dean was brave and the most loyal person (or being, really) that Cas had ever known. He carried an enormous weight on his shoulders and yet he still managed to smile and not descend totally into the black hole of twisted cynicism that constantly sucked at his stomach. He took care of his brother, maybe too much sometimes, and never gave up. He had a gritty determination and a fiery hotheadedness that got him into trouble sometimes, but his stubborn tenacity could always get him out of it again.
They shouldn't have worked. They were polar opposites. Light and dark. Each one thought the other was light, and each one thought they were unworthy of the other. They were the angel and the hunter. By all rights, they should exist as two entirely separate entities with nothing in common and nothing to connect them except some orders from Heaven and a heap of shared experiences.
Or so they both thought. But they were both courageous, loyal to the end. They would both go to the ends of the Earth and beyond to save someone they loved. They were both warriors, fighting tirelessly for a cause, and both could achieve anything once they set their minds to it.
Really, what they were were two broken heroes, unknowingly healing themselves whilst they tried to fix the other.