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We now know one royal who isn't afraid to get a little rowdy playing with snow.

Britain's Catherine, the Duchess of Cambridge, smiles at the camera at a ski event organised by the Norwegian Ski Federation at the Tryvann Ski Resort, in Oslo. — Hot or cold, the duchess is all smiles!Hannah McKay / Reuters

The Duke and Duchess of Cambridge took to the Holmenkollen National Ski Arena slopes on Friday during a royal visit to Oslo, Norway. While there, it appears Prince William learned a valuable lesson: His wife won't pass up an opportunity to throw a snowball, regardless of how many cameras are around.

The Duke And Duchess Of Cambridge Visit Sweden And Norway - Day 4 — The Duchess of Cambridge helps a young skier stand up. WPA Pool / Getty Images

While the duchess stopped to help a pint-sized skier who fell during a lesson, she was a bit less tender where her husband was concerned. As captured in photographs, the duchess formed a decently-sized snowball and tossed it at Prince William.