Gordon Ramsay's daughter claims the chef "likes to run around naked" in their house.
The outspoken chef was left red-faced when 12-year-old Matilda revealed his embarrassing habit when she made a cameo appearance on US TV show 'Masterchef Junior'.
Asked by Gordon's fellow judges Graham Elliot and Joe Bastianich if her dad ever embarrasses her, she said: "Yeah! He loves to run around naked."
As Gordon - who also has daughter Megan, 16, and twins Jack and Holly, 14, with wife Tana - hung his head, his daughter backtracked and insisted: "I'm kidding."
The 48-year-old chef tried to get his own back by trying to set Matilda up on a date with 12-year-old contestant Michael, who enthusiastically agreed.
However, his daughter insisted she wouldn't romance someone of her father's profession because she thinks he is a "nutter".
She said: "If you think I'm going to marry a chef, you've got another thing coming! Why not? Because you're a nutter."
While she might not want to marry a chef, Matilda has her own eye on a culinary career and has impressed her dad with her efforts on her new cooking programme 'Tillywood'.
Gordon previously said: "It was just fascinating watching her, saying, 'Dad's food is posh, but my food is real food.' and showing this to her friends.
"She has all the makings of a great chef. If you had put me in front of a camera at age 12, even then, I would have told you to f**k off."