The Prince of Wales spoke about what he and his wife like at a café on a college campus The icing on the cake of Prince William's latest engagement may have been his insight into Kate Middleton's favorite dessert.

"They've certainly cleaned up their act for the children's sake, but they can still make each other double over laughing."

Royal biographer Christopher Andersen explains that Kate Middleton and Prince William initially bonded over a shared sense of "naughty" humor. Read more, here.

Liam Payne, who died on Oct. 16 after a fall from a hotel balcony, met members of the British royal family many times, from Queen Elizabeth to Kate Middleton, Prince William and Prince Harry.

Princess Kate shared in September that she had completed her cancer treatment after revealing her diagnosis in March.

Prince William chatted about his favorite treats to chef Darren Watson while touring a student and staff café at Duchy College in Cornwall, England on Oct. 17, confirming his wife's favorite dessert in the process.

Kate Middleton is slowly returning to royal duties following her cancer treatment. The Princess of Wales has completed her treatment, but her full-time return to royal life is not being stressed. Still,

Prince William and Kate Middleton continue to be a close-knit couple after over two decades of romance, and their unique sense of humor keeps the royal couple engaged. "William once described Kate's sense of humor as ‘naughty’ and his own as ‘dirty,