[He's been having to practice a lot of diplomacy lately. Occasionally he's even successful.]

We are very satisfied, yes.

[Pause. Given the context, those words strike him as a little...risque.]

With our solution. And as our increased longevity with Rassilon's addition of regeneration to our biodata would have made population control a very serious problem otherwise, it's probably for the better that the species was rendered sterile and reproduction taken out of the hands of chance.