Radar breaks into a laugh. "That's the one really tall guy, right? Dr. Anzu's husband -- uh, partner?"

(Radar still doesn't quite get the whole gender thing, but he's trying.)

"Yeah, if it weren't for you two, guys like me would be up a tree without a paddle whenever we wanted a book, huh? Glad they got you both around. Here we go -- "

He holds open the front door of the house so Siebren can float inside.