"Well, naturally you find it unsettling. That's no one's fault," he says, and watches the Captain's reaction to his change.

He'd be lying if he tried to pretend he wasn't looking for surprise, if he denied (at least to himself) that the stammer amuses him. He wasn't looking to make the man swoon or go into shock, though, and he'd rather not make him an enemy. So while there's a flicker of unmistakable laughter in his eyes, and his lips twitch briefly, he's quick to school his expression to something more neutral.

"I'm a shapeshifter," he says. "I suppose I didn't get around to mentioning that. Thor is not, however, so his uncanny resemblance to your father is not his doing, nor is it mine. Do you need a glass of water?"