Watching her work, Wash's expression isn't unlike the one Tonks had herself earlier on the bridge.

(With a tiny side of the usual rueful curse you, genetics, for not letting me be able to do this too, of course. Just a bit.)

"Shiny. Xiexie again for helping out with this -- Jayne, I'm sure, will be very willing to tell us when to," he drops into something that's not a bad approximation of Jayne's gruff Rim accent, "'fix yer gorram charmy-things already.'"

He jerks his head in the direction of Jayne's bunk.