Kate's secret nickname for Louis revealed
Kate Middleton has let slip the adorable nickname she has for Prince Louis, as her youngest child attended his first royal engagement.
During a visit to a Scouts hut in the UK city of Slough for the Big Help Out-day of charity work, the Prince and Princess of Wales were joined by their three children to lend a helping hand.
Royal fans were delighted to see George, Charlotte and Louis join in the action, and were entertained by Prince Louis' hilarious facial expressions during the royal outing.
As a reward for their hard work, the family enjoyed roasting marshmallows over an open fire, with Kate getting involved to help the kids make s'mores as Prince William held their jackets.
Prince Louis enjoyed the marshmallows off the stick without being toasted, with the young royal reportedly overheard telling organisers, "I like mine just like this".
That moment came just before his mum told him to throw the stick "in the fire Lou-bugs", revealing her sweet nickname for him.
Prince Louis, who was seen shovelling sand and dirt as well as wheeling the wheelbarrow around the property, was so engrossed with his tasks that at one point, he didn't even hear his mum ask if he needed a hand.
As the family engaged in several tasks to help renovate the Scouts hut, the youngest member of the family also joined his father and brother in leaving his hand-print on a mural to signify their involvement.
Prince George and Princess Charlotte undertook their first royal engagement last June, joining their parents in Wales during Queen Elizabeth's Platinum Jubilee celebrations.
Image credits: Getty Images