Why Prince William Is Withholding a Young Girl’s Gift From Youngest Son Prince Louis

Prince Louis may be a royal, but he's still the trouble-making little brother that you'd expect any 6-year-old to be.

Prince William recently revealed his youngest son's current penchant for mischief during a public engagement in Llanelli, South Wales, on Tuesday, Sept. 10, calling out the elementary student's attendance to thieve his big sister Charlotte's jewelry.

The future king met 10-year-old Ruby Davies during his time in Llanelli, who presented him with a book full of postcards filled out by her fellow students at Swiss Valley Community Primary School, according to Hello! . Ruby also gifted the Prince of Wales a set of friendship bracelets to pass on to Louis, Charlotte, 9, and George , 11.

While William was very grateful for the gift, thanking the girl and telling her that his kids were "going to love those" and that she may even "see them out and about," he warned that he was feeling cautious about letting his youngest see them. "I'll keep them away from Louis because he'll try and steal all his sister’s bits."

Ruby went viral earlier this year following a win at Eisteddfod, an annual competition covering various arts and literature, in Wales. Before departing, William addressed the moment, too, telling the youngster that he's "watched [her] video a few times..."

"You did brilliantly, and you don’t seem nervous about performing on stage at all," he added.

Princess Charlotte, of course, is also just like any typical pre-teen girl, recently going viral herself for her reaction to her parents' "embarrassing" PDA .

Next: Prince William and Kate Middleton Announce Another Shake Up on Their Royal Team