Kate Middleton topless: Duchess almost flashes bum in dress
The 30-year-old's Erdem number whipped up to expose her thigh, but fortunately she grabbed it in time to ensure her royal behind didn't become as much of a talking point as her breasts.
Wills, 30, and Kate had arrived from Tuvalu to catch a connecting flight to London, marking the end of their Diamond Jubilee tour of South East Asia.
Unfortunately after their hectic time abroad, the couple won't be able to relax once they get home.
Instead they will continue to fight their case against French Closer magazine after they won an injunction to stop them printing further images of poor Kate.
The royals want to bring criminal charges against the photographer and are awaiting a decision from France's prosecutors.
Wills and Kate are claiming a gross invasion of privacy when the snaps were taken of them on holiday relaxing by the pool at a sprawling estate in Provence.
The photos show the royal couple relaxing by the pool, with Kate seemingly rubbing lotion into Wills' back, her breasts
on full show.
In another, her top has fallen down or she is about to remove it.
The full text of the article reads: "A little more than a year after their marriage, the royal couple were offered a romantic getaway, far from the protocol and etiquette in their very own garden of Eden.
"Almost alone in the world...because Closer was there! After the Olé Olé holidays of Prince Harry in Las Vegas, discover the very sensual shots of Kate Middleton
and her husband Prince William.
"Discover the incredible pictures of the future Queen of England as you've never seen her before... and as you will never see her again!"Poor Kate - being a Prince's wife is tougher than it looks!