Kate Middleton and Prince William are a popular royal couple.

During a visit to a Royal Air Force base, Kate called William a "nightmare" when he eats pizza on the couch.

King Charles's eldest son advised them to keep pizza off the sofas.

Kate playfully responded, calling William a "nightmare" again.

The couple enjoys pizza, as revealed in past reports.

While pregnant with Princess Charlotte, Kate ordered three pizzas during their stay at a luxury hotel.

One of the pizzas was topped with spicy sausage and another with prosciutto.

Princess Charlotte is now 8 years old.

Kate and William's outings and gestures continue to captivate the public's attention.