Rupert likes to gnaw on socks, rolled up in a ball. He's partial to fingertips and wrists, too. Thighs. Toes. Chair legs. Lint. feathers (boy howdy, does he like to chew on feathers!)
He and Lucy are getting along much better now. She's still not into the social grooming thing, but that's only a matter of time; they occasionally take naps together, but only when no one is looking.