"When Andrew went with the girls, we were talking all morning, and he was saying, 'It's OK, just remember we had such a good day, our wedding was so ideal.' You know, we're such a unit together".
The couple made an appearance at the royal wedding Friday as well.
And it's 5/4 the Duke and Duchess of Sussex will become a mum and dad by the end of 2020.
Demi, meanwhile, was in good company on Princess Eugenie's big day.
Field entered St George's Chapel at Windsor with her husband, singer Robbie Williams.
This isn't the first time a royal wedding has taken place at Windsor Castle this year.
Air India flight with 136 on board hits airport wall (PHOTOS, VIDEOS)
All passengers were deboarded and an alternative flight was arranged to take them to Dubai with a fresh set of crew. The aircraft landed at around 5.30 am and taxied to its parking spot even as emergency personnel stood by.
No surprise her: Little Princess Charlotte stole the show at her dad's cousin Princess Eugenie's wedding.
Etiquette expert Myka Meier added that royals like Middleton and Meghan Markle try and prevent the issue in a different way along with weights.
At 12 years of age, the princess underwent an eight-hour operation. That doesn't mean she doesn't love them - in fact, Eugenie revealed once that the Queen loves her fiance Jack and was very excited about the wedding.
While there's technically no rule against royal couples showing the public they actually like each other, Meghan and Harry's PDA often makes headlines because it's so unusual.
Siblings Princess Charlotte, 3, and Prince George, 5 - who are Prince William and Catherine's children - reprised their roles as bridesmaid and page boy and were on their best behavior. That's why Queen Elizabeth reportedly didn't see a need to give them an official title or dukedom.
Of course, the fashionable duo weren't the only ones to be enraptured by Princess Eugenie's walk down the aisle.