Mom and dad's day out! Kate Middleton and Prince William enjoyed a date without their three adorable kids by attending the Wimbledon tennis tournament on Sunday, July 15. The duo looked more in love than ever as they watched Novak Djokovic beat Kevin Anderson to win his fourth tennis championship.

For the special occasion, Kate, 36, wowed in a bright summer yellow dress designed by Dolce & Gabbana. The chic ensemble was actually very similar to an outfit the Duchess' new sister-in-law Meghan Markle donned just days earlier during a royal outing with Prince Harry.

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One day before Kate and William attended Wimbledon, the Duchess of Cambridge similarly stepped out with Meghan, also 36, to watch the Ladies' Single Final match between Serena Williams and Angelique Kerber.

For their first joint outing without their husbands, Kate and Meghan looked gorgeous in a black and white patterned Jenny Packham dress and a blue and white Ralph Lauren blouse paired with white slacks, respectively.

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Kate and Meghan's afternoon at Wimbledon was the third time the royal sisters-in-law have stepped out together this month. On July 9, the duo were photographed attending Kate's third child Prince Louis' christening, then, one day later, the royals attended the RAF Centenary celebration on July 10.

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