A/N: Prompt: Baby. Nyx belongs to teaandchess (on tumblr) and her brilliant story, In the Lethe (Parts 1&2). If you haven't read them, you are truly missing out.
"I'm not a baby," came the defiant lisp from the five year old sitting on the table in front of him.
Castiel paused. Nyx was in a mood, trying to kick her feet away from him. He held her legs steady as he gazed at her thoughtfully.
"Nyx," he quietly regarded the small child. "I am millennial old. I have walked this universe for so long, I have seen mountains rise and seas fall. You," he reminded her, "are only five. In my eyes, you will always be my baby." Softly smiling at his daughter, who looked on the verge of arguing some more, he gave a small sigh and admitted, "But I agree, you are getting older, and perhaps you are now old enough to learn to tie your own shoes."
She seemed to mull this over, and Castiel could feel her unsettled emotions start to calm down. She then nodded her head and looked up at him.
"Okay," she said simply, jumping down from the table. He followed behind, but not too closely, as he watched her move to the couch to work on the laces on her own.