He really wasn't expecting to be tempted. Having a master is a mistake he has no intention of making. Chernobog, Hecate, Ogmios, they can all fuck off back to the pits they came from; they're appealing which means they think they know him which means they want something.
But Chanabiel. Chanabiel wants to fix him.
He remembers the first girl who thought she could fix him. It was an accident, that time; she'd seen how he acted, a bitey little secondary-schooler without the masking skills God gave to a rattlesnake, and she with her church-regulation plaits had thought she could save his soul. She came to him, and she said I want to be your friend, and she'd smiled at him, and he'd asked what her angle was, and she'd told him, not in so many words, that he was pretty but he was bad, and that she was going to fix him up 'til she could marry him when they grew up. And he'd thought -
what if I fix you instead?
And they'd become friends. He really did clean himself up, and he had her to thank. He watched how she ate, how she played, how she talked. He learned how people do. And in return he taught her how he did. He acted like he'd leave if she didn't play fair, didn't give as much as she took. She wanted him to dress nicer? He wanted her to stop dressing so nice, would God hate her if she wore her hair straight? She wanted him to come to supper with her family? He wanted her to smoke with him, just a bit, just to see what it's like. She wanted him to date her? Guess what he wanted.
He knew, now, he'd had an easy tutorial with her. She was sheltered, told all her life about the bright lines you never crossed. Once someone like that crossed a line they started wondering about others. And as long as she saw him getting nicer, getting neater, getting sweeter, what was it to her that she might be losing ground? Maybe they'd meet in the middle.
They'd met far from the middle. She got to the middle and he started dragging her back down with him, and she'd sunk so much into the project of Tom Riddle that she couldn't get out, not now, not with her church friends not speaking with her and her family poised to tell her they'd told her so. And she sank, and he flew.
And maybe he could do it to an angel.
"What happens," he wonders, rubbing his fingers against Chanabiel's soft light, "if your patron becomes... indisposed. Towards you or in general."