He tries to take in some of the details of the house as they pass through, but soon enough they're in what he assumes is Vax's bedroom. And the door closes. And Vax delivers that particular bit of information... now.

"Oh."

Give him a moment. Percy steps back a bit, not necessarily to get away from Vax'ildan, but to--he doesn't know. Give himself a bit of space to think clearly. Not that there is any reason that Vax's presence should make him have trouble with that.

"Wait, what?" He has no idea what sexual energy has to do with rebuilding a civilization, that feels like a wild leap.