I'll bet you anything you like that half an hour after they have met, they will be calling each other sister. Women only do that when they have called each other a lot of other things first.
I think at this point, there's a certain bizarre chemistry between Jamie [Hyneman] and I that we can't ignore a lot of the mechanics of, that we're quite aware of. Half of it is absolutely genuine, and half of it is us playing around with that fact.