[He never knows how to read it when he notices Shiro blush out of nowhere, or at least what seems like that to Keith (because he's dumb.) But the small smile from Shiro is enough for him to return it lightly, much as he feels there's more he wants to ask about what brought them to the questions in the tunnel.
The wolf, meanwhile, has walked away from Keith and towards Shiro with that stoic way that you clearly can only inherit, being raised by both Keith and Krolia, sniffing tentatively at his hand.... Then gives his palm a big ol' lick lol Keith quietly snorts from where he's watching sdflkdjf.]
It went about as well as you can expect. Bathroom might be a little cramped for wolf bath time. [lol. but hey, he got it.... they're both clean and floofy again.]