Royals British Royal Family Princess Kate Is an 'Amazing Mother,' Says Prince William (and Prince George Is a 'Little Monkey'!) "It is fantastic having a lovely little family," the royal dad told the BBC in a new interview as he begins his air ambulance job By Simon Perry Simon Perry Simon Perry is a writer and correspondent at PEOPLE. He has more than 25 years’ experience at PEOPLE covering the royals, human interest and celebrity. People Editorial Guidelines Published on July 13, 2015 11:15AM EDT Photo: Rex USA We already knew that Prince George "never stops moving," and now we know why. “He’s a little monkey,” his dad, Prince William, said in a new interview Monday morning as he started work in his new role as an air ambulance pilot. As for George’s 10-week-old sister, Princess Charlotte, “she has been a little joy of heaven,” William said, adding, “but at the same time it is more responsibility, looking after two little ones, especially when George is around. “But it is fantastic having a lovely little family and I am so thrilled,” he continued. He also included a sweet note of praise for his wife, Princess Kate: “Catherine has been doing an amazing job as a mother and I’m very proud of her.” Asked whether he and Kate, both 33, may add to their family, he replied, “We’ve only just had the second one. You never know what is going to happen in the future.” He was speaking on a wet morning in Cambridge as he started his new job early Monday. It is a role with the charity East Anglian Air Ambulance that enables him to be, as he says, a “good guy” working in the real world. “It’s my first day and I’m feeling the nerves,” he told reporters. “I’m really looking forward to getting started. It’s been a lot of effort and patience in training, but we’re here now and I’m looking forward to doing the job.” He has had to pass a series of technical exams and learn to fly a new helicopter, and he hopes he can build on his experience as a Royal Air Force search-and-rescue pilot to help those in distress in the region of England close to his country home, Anmer Hall, in Norfolk. He will carry out 9½-hour shifts over six days – either 7 a.m. to 5 p.m. early shifts or 4:30 p.m. to midnight late shifts – followed by three days off. But he will likely do about a third fewer shifts than his fellow pilots to allow him time to perform his royal duties. His reported $60,000 salary will be donated to charity. As William is the first senior heir to the throne to work in a civilian job, he is charting new waters (and is set to be followed by brother Prince Harry) – and those close to him have suggested his day job will inevitably come to an end when fuller duties call in London and beyond. But William made a point of keeping his options open on Monday. “There’s nothing to say I couldn’t do it for the rest of my life,” he said. “I might be able to and still balance the two. But obviously at some point there is probably going to be a lot more pressure and responsibility from the other side of my life. At the moment I’m juggling the two of them and a young family,” he said in the interview. Princess Charlotte’s Christening Gives a Master Class in Artful Ways to Honor the Royals “I’m enjoying it, and I like the challenge, but yes, inevitably down the line things will probably become a little bit more difficult for me to do that. But while I’m still relatively young, I can manage the two jobs as best I can.” The royal dad has clearly thought about the way ahead. “The term ‘full-time royal role’ is bandied around quite a lot, and no one actually really knows what that means,” he said, “but I think I can still manage to do my commitments and my responsibilities as well as I can. The Queen is still very active and is still showing incredible leadership. My father is doing many, many engagements, as are the rest of the family, and so there’s a lot being done by the royal family around the country. “I hope to still be a part of that, and do as much as I can, but equally do something which I think is incredibly important and [will] prove me in good stead for the future.” Want to keep up with the latest royals coverage? Click here to subscribe to the Royals Newsletter.