[Ah, yes, Ain's weakness: men who will take care of him. This is not a hard ask when you're a pet (or one would think, anyway), but he'd have the same thing if he were actually human, too. Probably definitely. This is why he can't be actually mean to Vash, because he's genuinely too sweet, and even Ain has his weaknesses.

So. He finishes off that steamed bun, and then he just... flops over with his head in Vash's lap. Happy bird hours.]

So noble! And I get to be your only pet, even!

[because he would fucking bite any others—]

I'll get you something to repay you one day. A pretty necklace or something. [You know, because... Ain doesn't understand gift-giving, so it tracks he should just get something he'd like and give it to Vash? Like that's just logic. That's how the humans do it.] Mm... I'd have to steal it, though.

[He can, luckily, fly. But still. Outdoor jewelry stalls can be hard to come by in some areas with high crime rates and/or high populations of bird-pets who just want to take objects and run.]

If I had the means, I would decorate you.

[yes this is flirting. No, he doesn't quite realise it could come across that way. Ain is... Head empty. No thoughts. Happy trills, though.]