Yes, there were mock-ups already circulating of what their future children would look like.
But the raucous didn't last long, as the UN Goodwill Ambassador and HeForShe advocate stopped everyone in their tracks with the most brilliant, rumour-dispelling tweet we've seen in a while.
First of all, Watson wrote:
And as if that wasn't clear enough - she then, rather brilliantly, tweeted that "marrying a Prince is not a prerequisite for being a Princess".
Amen to that.