The last visible change is the shining blue of his fur, around the dramatic stripes, going to orange and white. Alloran's thin, gestural cat tail twitches and he looks at Sirius with emotionless pale eyes, sniffing the air. The tiger's instincts are appraising. It's wary of humans and doesn't inherently, instantly recognize them as prey, but it's not really afraid either.

Just as well. Alloran is out of practice with this kind of thing and it takes him a minute to get sorted out and take control back from the tiger brain. The tiger's body language changes subtly. He sits down, and it's been enough of a pause to not feel like a natural extension of the conversation, but he still says, <Painless. Unsettling, maybe, but I've morphed stranger animals.>