Pale moonlight barely shown between the clouds, illuminating a puddle of blood pooling beside a man's broken body. He lay among the grass, green eyes glistening brighter than a million stars. The feeling of another presence came over the man as soft, warm hands tangled in his blood-stained ones. He smiled sadly up at the blue eyes he knew so well as a feeling of safety crept over him. Castiel's expression was one of intense pain and suffering. He softly whispered, "Dean, you can't go. Not yet." The man's pulse was becoming faint against the fingers pressed to his neck. He did not reply to the angel, but instead continued to stare into the hypnotizing sea of blue that were Castiel's eyes.
Dean smiled wider and rasped out, "You always knew it would happen like this, Cas. From the moment I was born, there was no hope for a long-lived life." The angel looked down at the dying man, breath being constricted by the steel grip clenching his stomach. "Dean," he whispered. He could hear the beating of Dean's heart which was getting slower by the second. "Everything will be okay, Cas. Everything will be okay," the man reassured.
Castiel refused to let this man's life end. It shouldn't happen to Dean, it couldn't happen to Dean. It was just too unfair. He deserved the happiest life, a perfectly human life. He deserved to die peacefully, old and wrinkled, lying in a bed with blankets wrapped securely around him. He deserved a family, a wife, children. He deserved more than any other human. But instead, he had Castiel, and that was more than enough.
And so the angel sat with him as the righteous man's heart pounded with a "thump... thump... thump..."