Melanie throws Aziraphale a smile over her shoulder when he thanks her, but she beams when Crowley invites her to touch his wings. They're just so pretty. Previous experience with Aziraphale's wings has made her a bit less tentative than she might be, otherwise, but she still takes care to be gentle as she runs her fingers over the alula. The feathers are smoother than Aziraphale's, neater, and there's really no question of her threading her fingers through his feathers the way she would with the angel's. But that's all right. It's enough that she gets to touch them at all.

"Thank you," she says, a bit shyly, withdrawing her hand and leaning back against Aziraphale's chest. The warmth is nice, and uncomplicated - she can enjoy it for what it is without any faint undertones of predatory interest from the hungry part of her. Is this what it would feel like if she was normal? She'll have to enjoy it while it lasts.