(Your Alastor, this is a human au)

You had stumbled upon baby Charlie. He was hiding a body when she came around and stepped into a puddle of 'evidence'(blood) of his victim a few months back, met Lucifer, and made a deal about you helping take care of his kid and Lucifer helping you with not getting caught. Now, you're playing with baby Charlie and living with them as well, tugging on your bowtie, while Lucifer was just looking at them playing