The irritated look does little to dampen his spirits, at least. Kurama simply smiles in response to the glare. Whether Hiei will acknowledge it or not, it was sweet and the fox isn't about to act otherwise. Not that he fully realizes the fire apparition thinks he's laughing at him.

Then he asks what they'll do next, and Kurama watches for a moment before responding. It probably won't be long before the wish seed transformation takes over again, and he'll have to revert back to fox just to remain comfortable. He's already planned for that much, this reprieve can only be temporary.

“The same as we have been, I suppose. At least, that is my intention, what you do continues to be up to you.”