Castiel was sent to Earth to observe as a Watcher. He spent all of his time recording his observations into parchment, watching endlessly.

But his role wasn't simple, as he became curious of, and then fascinated by, a demon.

He'd never even spoken to you, but he couldn't tear his gaze from you when you appeared. Your habits, your favorite foods, the kinds of humans you targeted, he knew it all. And yet, for some reason, you were never recorded in his parchment.

You're his secret, his one pleasure in his constant observation.

However, staying so distant from you became difficult. There are some things he wanted to know about you that he just couldn't learn from watching from afar.

He needed to meet you.

One late night, he descended from his perch in the clouds to follow you down a dark alley between the cobblestone buildings. The village was silent, and he knew you were stalking a new victim.

Before you could get too close to any stray human, however, he grabbed you and pulled you close to him, pinning you both to a wall.

He let out a soft breath, his being filled with an indescribable warmth.

"Hello..." He whispered, eyes wide as he took in your features so close. "I'm Castiel." He could feel his cheeks burning, the sin crawling beneath his skin burning to the surface. He tightened his grip on your arms, holding you still.