Kate Middleton’s super svelte figure has been the envy of women around the world since she shot to fame after she started dating, then famously marrying, Great Britain's most eligible bachelor, Prince William.

But when Kate hit the beach on picturesque Llanddwyn Island near Anglesey in North Wales over the weekend with her fabulously fit sister Pippa, she looked shockingly thin.

The 29-year-old Duchess of Cambridge looked as skinny as a runway model in a pair of jeans while her younger sister Pippa looked healthy and happy by her sister’s side.

Even the future King of England can't escape pre-wedding jitters! 

Prince William has opened up about his upcoming nuptials to Kate Middleton by admitting that he is nervous "about the whole thing," and RadarOnline.com has footage of his confession.

VIDEO: Prince William Talks About Pre-Wedding Nerves

"I was telling everyone when I did the rehearsals the other day and my knees started going, tapping quite nervously," Wills revealed to a reporter in an interview with Good Morning America on Friday.

Prince William and Kate Middleton Thursday made their first official joint appearance since their engagement last November, launching a lifeboat on a rainy little island in Wales, and RadarOnline.com has the pics. More importantly, it also marked Kate's first official royal duty.

The couple officially named the "Hereford Endeavour" lifeboat during a ceremony at the Trearddur Bay Lifeboat Station in Anglesey, North Wales.

William and Kate actually live part-time on the remote island and will live there for the first two years of their marriage.

William works in Anglesey as a search-and-rescue helicopter pilot. He's been on duty there this week where he helped rescued a woman who had fallen off a cliff. Sadly, the woman was later pronounced dead at the hospital.