The girls' games mostly seem to be derived from their watching of Animal Planet at the moment. They assemble pairs of toy animals and enact family life with them. The facts of life hold no mystery, at least in the animal kingdom. Yesterday I gathered that their Bambi video is just as influential in forming their vocabulary.
Youngest with a pair of toy zebras: "They're twitterpating and now they're having a baby and everybody is really happy to see the baby."