Her arm moves of its own accord, and Loki smiles widely. Isn't this delightful! He'd meant to enslave all of her, her senses and wits as well as her body... but perhaps this is even better. The shrew will be helpless to stop herself even as she's carrying out his bidding. But it'll require some more testing.

"Stop yourself from doing that," and he points at the other arm flopping in the direction of the door.