Naomi Watts in sexy bikini true MILF.

With a successful film career, two gorgeous sons and a loving husband, Australian actress Naomi Watts really does have it all.

And if that wasn't enough, the 42-year-old managed to escape the chilly weather in her adopted home city of New York to enjoy a break in the Barbados with her brood this weekend.

Slipping into a string bikini, King King actress Watts proved she really is to be envied by showing off the kind of body that a woman half her age would be proud of.

Yummy Mummy: Naomi Watts enjoys time in Barbados on Sunday with her sons Sasha (right) and Sam (left)

Stunning form: Watts showed off her enviable physique as she enjoyed a dive in Barbados

Wearing a black bucket hat and that celebrity staple - oversized shades, Watts rocked the tiny black number with panache.

And she bravely steered clear of the self-tanner, relying on her porcelain skin to set off her skimpy swimwear perfectly.

Watts seemed happy with the results as she let long-term partner Liev Schreiber snap away with the kind of professional camera that allows no blemish to go unrecorded.

But then her attention was most definitely focused upon her two gorgeous boys, Sasha, three , and two-year-old Sam.

The International star was in family heaven as she laughed with her boys at the quiet resort.

It's a well earned break for the star, who has been filming heavyweight new movie J.Edgar with Leonardo DiCaprio, 36.

Her co-star opted to party at the Coachella festival in the Palm Desert with fellow stars including Diane Kruger, Nicole Richie and Kellan Lutz.

But for Watts, it's all about her family, she even took a break after her children were born - The International last year was her first foray back onto the big screen after new mommy duties.

The family take care to enjoy trips together, visiting the West Coast throughout the harsh winter and travelling to Watts's native Australia around New Year.

Watts, who is good friends with Nicole Kidman and father-to-be Benicio Del Toro, has admitted she'd love a bigger family, and hasn't ruled out adoption.

She told Blackbook last May: 'I would love to have an endless brood of children. I grew up in chaos. I feel comfortable in chaos. Whether or not I'll ever adopt remains to be seen, but I totally believe in adoption.'

Close-up: Liev Schreiber prepares to take professional shots of his partner and youngest son Sam