[Vastra catches the tail end of that 'something', and her expression goes both concerned and curious. For Vastra, there is only one monster that behaves in such a way--but there's nothing that could prevent them from appearing where Natasha originates from. It would be strange, very strange. But strange things happened all the time.]

...Yes. [She goes back to the tea as though the moment hadn't happened, and starts pouring hot water into the cups.] It is the reason those creatures have to conquer planets. No one wants to be a canned vegetable.

[She slides saucers under the cups.] I can empathize. However I have no reason to be insincere, I hope you know that.