He did assume, yes - but he's also smart, so when she mentions limb enhancers, he easily figures out his own wrong assumption. There's a little 'oh' there, and he nods, eyebrows arching in understanding as he takes a step closer.

"I didn't know your hands looked... well, like that," he tips his head almost apologetically, shoulders drawing together. "Is it a bad thing? Is it dangerous for you, not having the enhancers?"