Ashton Kutcher and Demi Moore

Ashton Kutcher and Demi Moore

Barcroft

When it comes to partying, Hollywood offspring sure know how to do it in style. Take middle Willis daughter Scout LaRue, who celebrated her 18th birthday on Friday with a Twenties-themed party at the Cicada restaurant in LA, with Dita Von Teese providing the entertainment.

Guests attending the super-snazz bash, thrown by Demi Moore, Ashton Kutcher and Demi's ex Bruce Willis and new wife Emma Heming, included Marisa Tomei, Amanda De Cadenet and model Sofia Vergara.

But we hope the Willis-Moore clan took care of the photographer that evening... because isn't that Ashton we see behind the lens? You've got to keep an eye on the mischievous Punk'd supremo – who knows what images he'll Twitter... In March, he posted a photo of Demi's derrière!

Thankfully, this shot shows Demi giving Ashton a cute peace sign... but we wonder what happened later... Did Ashton read Brad Pitt's advice in this month's Wired magazine? "Don't take a picture of your wife's butt. That's silly," says the Inglourious Basterds star. "Take pictures of other people's wives' butts."

Why you cheeky boy, Brad!

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By Louise Sugrue