Head canons for Sebastian and Ciel for an s/o who comes back to life (like a cat, having 9 lives, maybe more). How would they react to seeing their s/o after they supposedly died?
Sebastian would be rather surprised, I think, because how had he not known that you were able to do such a thing? Upon discovering you could do such a thing, I think he’d ask you several questions: How many lives do you have? What does it feel like? What happens when you lose your last life? And, most importantly, could you turn into a cat?
He’d frown deeply when you told him you couldn’t
The demon wouldn’t worry for you as much as he did in the past, now knowing that(even if you did die) you could come back to him a handful of times before he needed to step in and save you from killing yourself for good. He’d call you “Kitten” much more often than he did before because, heh, he’s super punny and he knows it too.
Sebastian, altogether, would take the news very well and would be almost relieved that you were like him–that you could both be beautiful mysteries together until the very end.
Ciel
Ciel would be shocked into silence, and I know this, because how on Earth was such a thing possible? Death was final, or so he thought, and(after his initial silence) he’d be bubbling with questions: How long have you been like this? How many times had you died? How many more times could you die? And, most importantly, you couldn’t turn into a cat, could you?
He’d sigh in relief when you said you couldn’t
The boy would be relieved, but would be very worried for you too because he feared the pain of watching you die over and over before him until one day when you didn’t come back–and that thought terrified him to his core. He’d call you “Kitty-Cat” when you are alone just to tease you and because, let’s be honest, discovering this part of you was actually a little bit of a turn-on for the navy-haired teenager.
Ciel, altogether, would take the news very nervously but would eventually come to grips with such a thing and would embrace and appreciate you for everything you are.
Toad's Cave 