Ashton Kutcher, Mila Kunis Double Date With Princess Beatrice, Boyfriend

Mila Kunis and Ashton Kutcher dined with Princess Beatrice and her boyfriend Dave Clark at the "Duck and Waffle" restaurant in London on May 11, 2013. Noel Vasquez/Getty

If only Harry, William and Kate had joined them! Ashton Kutcher and Mila Kunis had a London double date with none other than Princess Beatrice and her American boyfriend Dave Clark on Saturday, May 11. As Kunis, 29, shoots Jupiter Ascending with Channing Tatum in the British metropolis, the actress and her beau of over one year were spotted imbibing at several area bars that evening, including Duck & Waffle and Callooh Callay.

"They were super friendly and chill," a witness at Callooh Callay tells Us Weekly, noting that the foursome sat on barstools at the bar, and indulged in Jose Cuervo tequila shots and cocktails. "They didn't cause a scene or commotion."

Princess Beatrice and Dave Clark
Princess Beatrice and her boyfriend, Dave Clark Indigo/Getty

What's the connection between Beatrice, 24, and the Hollywood pair? Kunis and Kutcher, 35, "were invited by Princess Beatrice to take part in a charity walk that she was involved with," a source tells Us. The charity walk was tailor-made for lovers of food and drink, the insider adds. "They went to a number of iconic or special restaurants in London area and ordered their best dishes." Earlier in the week, Prince William and Harry's cousin (famous in part for her fascinator worn at the royal wedding tour years ago) broke bread with the pair at another London eatery, Dinner by Heston Blumenthal.

The fifth in line to the British throne, Beatrice (daughter of Prince Andrew and Sarah Ferguson, Duchess of York) has been dating Clark since 2006 — and got a real kick out of the double date with Kutcher and Kunis. "Princess Beatrice is obviously enamored by Hollywood and had a great time hanging out with them," the source reveals.

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