The Duke and Duchess of Cambridge have come a long way since meeting in 2003 at the University of St. Andrews. There's been an engagement, a wedding, three children... and, for Kate, the minor life adjustments that come with marrying into one of the world's most famous families.
They say a shared sense of humour is the key to a successful relationship - and in Kate and Will's case, their 10-year marriage has involved plenty of inter-couple bantz about, among other things, Kate's bad cooking and Will's hair loss.
Watch: Kate Middleton and Prince William shared a rare video of the whole family
Prince William jokes about Kate's poster of him on her wall
In the filmed interview following their engagement announcement, interviewer Tom Bradby asked if it was true that Kate had once had a poster of Prince William on her bedroom wall.
“It wasn’t just one, it was like ten, twenty [posters]" Will joked.
"He wishes" Kate replied, adding “No, I had the Levi’s guy on my bedroom wall, not a picture of William. Sorry.”
Prince William says Kate's contribution ruined an artist's picture
The Duke and Duchess were at the Global Ministerial Mental Health Summit in October when Colombian fine artist Dario Vargas asked if they wanted to contribute to the painting he was creating. Tentatively, Kate added some paint onto the canvas, asking "Where can I hide it?"
Her husband said: "It’s pretty much ruined the picture."
Kate Middleton says William was in denial about their third child
Launching the Nursing Now global campaign at St. Thomas' Hospital in February 2018 the then-pregnant Kate joked with a parent of one of the patients who told her, "Congratulations, best of luck with the third one."
"William's in denial" she replied.
Prince William jokes about Kate Middleton's cooking
The Duke and Duchess were at a Taste of Norfolk event in aid of East Anglia’s Children’s Hospice in 2016 when Kate told a group of chefs, "William has to put up with my cooking most of the time".
Her husband replied: "It’s the reason I’m so skinny."
Kate Middleton reveals Prince William's bad habit
Opening a recreation facility on a UK military base in Cyprus in December 2018, Prince William warned the soldiers: "Keep the pizza off the sofas!"
"You're a nightmare with that" Kate replied.
Prince William says Kate Middleton blends in with a Christmas tree
"Do you want me to move out of the photo," the Prince joked. "My wife's camouflaged against the tree!"
Kate Middleton says William still acts like a teenager
Visiting a school to launch their Heads Together campaign in 2016, William spoke to the school children and their parents about his childhood.
"Sometimes I still feel like I am 16, to be honest sometimes I still act like I am 16," he said.
"I still think you're 16," Kate added.
Kate Middleton jokes about having more babies
On a trip to Warsaw in 2017 Kate was presented with a cuddly toy used to soothe newborns. "We will just have to have more babies" she said, turning to her husband.
Kate Middleton threatens to let go of William's climbing rope
Prince William was abseiling down a 12-metre wall in an outdoor centre in North Wales, as Kate stood at the top holding onto his rope.
"Are you holding me?" William asked. "I've got you," Kate responded, before adding, "I'm rather enjoying this actually - for once I'm in control."
With the Prince then well into his descent, Kate shouted down at him: "William - how much do you love me?"
Kate Middleton mocks William's bald patch
The couple were at the Royal Easter Show at Sydney Olympic Park in Australia in 2014. Watching a shearing demonstration, at one point they were handed a tuft of alpaca wool, which Kate suggested he put on his head.
"You need it more than me," she said, pointing to his bald patch and laughing.
Prince William tells Kate off for flirting
The two were answering phone calls to raise money for the ICAP charity day in December 2015.
William overheard Kate talking to a caller named Andrew, and he blurted out: "Catherine, I think you can stop flirting with them now," before turning to a broker, raising his eyebrow and muttering: "Sorry, my wife is just embarrassing me."
Watch: William and Kate's wedding cake maker says Queen was 'charming'