After some seconds of shaving, when the sheep started squirming, she looked up and giggled at her husband and the rest of the family who own the farm, who stood chuckling on the sidelines.
But it was their visit to Deepdale Hall Farm, a traditional fell sheep farm in Patterdale, that delighted photographers as Will and then Kate took turns grasping the hind quarters of a couple of sheep, turned on the shearer and gamely started shaving the wool off the haunches.
Earlier in the day, they met a four-legged friend called Prince Harry as they visited Keswick.
"She was very friendly", said Helen Jones, per the Daily Mail.
The Duke of Cambridge asked the farmers about Brexit and how it has affected their trade, and one replied that "the worst-case scenario post-Brexit is absolutely dire".
"I was very surprised that farmers voted for Brexit, to be honest. I wouldn't want to be the last generation after 500 years", of operating the family farm. Farmers told the royal couple that possible 40% tariffs on sheep, combined with a loss of European Union subsidies for farmers would bring about a "perfect storm".
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Danny Teasdale, who runs a community interest company in Glenridding, said: "The conversation was really good and they were really interested".
He and his wife Angela have gone on to use the dogs for therapy to help others and raise funds for charities supporting mental health - an issue close to Kate and William's hearts.
Kate's experience with Action on Addiction has helped lay the groundwork for her work and understanding on mental health, and is now helping inform her work in developing a major project around support for children in their earliest years. "You can see she's really keen to look into it further", said Phil Caine, recovery coach.
The royals met volunteers from the local mountain rescue service, community first responders, and organisations that have benefited from grants from the Cumbria Community Foundation.