"Ooooh!" [That makes sense. Puppy evolved years and years ago, so he'd since gotten used to his size. And although he'd never learned to play nice, he is, at this point, well aware of his size, if not his strength at least.]

"Yeah, you did mention y' got Godric recently, right?" [And if he'd evolved quickly, all the more reason for his dog's antics. He's starting to make sense out of it all!... Maybe.

[Another snicker shares his amusement with his companion, before the redhead stops near his tiny ground pokémon, peering curiously at the cubone who remained staunchly there, at the corner of a half-crumbling wall. He pauses there for now, curious as to what Grumpy had decided was not going to get him moving again, but he doesn't see anything of note. So, back to the matter at hand!]

"So, Sirus an' Lily don't get 'long, Godric doesn't know his own size; what 'bout Roger?" [He asks eagerly, simply because he can. He's never known a single trainer who would decline talking about their pokémons, unless it was an incredibly rare one, and even then. It's nice to learn about them too, in this sort of friendly conversation; and Esteban has no intention of being a trainer himself, so getting a glimpse of that life through Harry is interesting in itself.]