A source close to the situation explained:
Aww Wills! Who knew the stiff-upper-lippers could be such HIGHlarious comedians?
After what we're sure was a rather harrowing weekend for the young Royal couple, it seems that despite everything, Prince William was all smiles when attending the Winter Whites Gala — which benefits homeless charity Centrepoint — in London on Saturday…
"[William] said they shouldn't call it morning sickness, as it's a day and all-night sickness."
Good one Wills! You could be a regular on SNL with that kind of comedic GOLD!
But hey, at least William CAN make light of what is otherwise a stressful situation…
Although we hope Kate doesn't end up giving her cheeky husband a big slap across the face for poking fun at her ailment!
Just vomit on his shoes, Kate… that'll show him!
[Image via WENN.]