Prince William calls daughter Princess Charlotte "a joy from heaven," and son Prince George "a little monkey." Credit: Mario Testino / Art Partner

Looks like Princess Charlotte is already a daddy's girl. Speaking with reporters ahead of his first day of work as an air ambulance pilot on Monday, July 13, Prince William opened up about juggling two royal tykes at home. "It's been fantastic," William, 33, told reporters of his newly expanded family of four, which includes wife Kate Middleton, also 33, and 23-month-old son Prince George.

"She's been a little joy from heaven," he said of Charlotte, 2 months. "But at the same time, it’s a lot more responsibility, looking after two little ones, especially when George is around. He’s a little monkey."

Prince William was quick to praise his wife for her efforts wrangling their little monkey. "It is fantastic having a lovely little family and I am so thrilled," the second-time dad said. "Catherine has been doing an amazing job as a mother and I'm very proud of her."

In addition to having his hands full at home, William will soon work nine-hour days for Bond Air Services, piloting a helicopter to bring a group of doctors and paramedics to care for critically ill patients in Bedfordshire, Cambridgeshire, Norfolk, and Suffolk. Prince William will draw a salary for his work that will be donated in full to charity.

July has been a busy month for the new dad of two. William and his wife christened baby Charlotte in an intimate London ceremony on July 5. Baptized by The Archbishop of Canterbury, The Most Reverend Justin Welby, young Charlotte was feted by close family — including big brother George — before portraits were taken by famed photographer Mario Testino.

On Monday, William played coy about an eventual third baby with his wife of three years. "We've only just had the second one," he told reporters. "You never know what is going to happen in the future."

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