In an excerpt from her upcoming interview with the magazine's editor-in-chief Alexandra Shulman, Kate reveals that 1-year-old Princess Charlotte and Prince George, 2, have no problems posing for their mom – herself an amateur photographer.
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"From taking photographs of George and Charlotte, I have been struck by the wonderful lack of self-consciousness that you see in photographs of children, without the self-awareness that adults generally feel," Kate said.
Source Kensington Royal / Twitter
Most of George and Charlotte's portraits have been captured by Kate, including the little princess' newly-released first birthday pictures. A palace source previously told PEOPLE that Kate is a "keen photographer," and enjoys taking shots of her kids.
Duchess of Cambridge / PA Wire / Getty
The royal mom has an artistic eye as she majored in art history at the University of St. Andrews in Scotland – where she met husband Prince William.
Kate's Vogue portraits are currently on display at the National Portrait Gallery in London, in the Vogue 100: A Century of Style exhibit. The rest of her interview and Norfolk photo shoot will be published in June's centenary issue of British Vogue, on sale, Thursday, May 5.