With a fussy sound, the arms that were previously being offered so freely get sucked back towards Phalanx's body when Robin starts peeling. They're not super adamant about it, but it's still enough to be kind of a pain. It's just a moment of anxious fight, before they let Robin tug on their arms like they're not attached to their body anymore.

A thimble and two pins fall to the floor, though. And their hands remain suspiciously folded up.