It... takes him a minute to figure this out, at first. That she means the husk of the metal thing. His first response is to be creeped out -- but he does his best to smother it down. This isn't like 'space magic', something to tease about. He's not as good with feelings as Grimlock, but...

"Did you build it?"

Good start, right? Not... that any of Team Bee has any room to talk. They sort of live in a junkyard.