Jennifer Lopez enviable “White Bikini” curves in Rio De Janiero holiday

She may be in the Brazilian City of Rio De Janeiro as part of her Dance Again tour, but life is certainly not all work and no play for Jennifer Lopez.

The 42-year-old singer and actress hit the beach with her toyboy beau Casper Smart and her four-year-old twins Max and Emme, along with her mother Guadalupe today.

She laughed and took pictures with her phone of little Max burying one of her bodyguards in the sand with the help of 25-year-old Casper.

 Sun, sea and sand: Jennifer takes Max for a dip in the ocean before strolling in for a refreshing soak herself

He held a bucket full of sand, while Max clutched the spade to help bury the bodyguard up to his neck.

His delighted mother laughed and took photographs of the escapade with her phone, as she stood alongside her mother Guadalupe.

The American Idol judge showed off her famous curves in a simple white halterneck bikini top and matching bottoms, with a sweater wrapped around her waist.

Building sandcastles: Jennifer showed off her enviable curves in a white bikini halterneck top and bottoms, with a sweater wrapped around her waist

A helping hand: J-Lo and her son Max get busy with the spades as they have their fun in the sands

Say cheese: Jennifer and Casper pull some funny faces at the twins, with Emme posing alongside Max who takes his turn being buried in sand

Her hair was tied up into a top knot and she sported sunglasses and her favourite oversize earrings, while Casper sported a pair of checked red and white swimming shorts.

And J-Lo looked very much the doting mother,carefully drying little Emme after the youngster had taken a dip in the ocean, and later carrying the sleepy little girl in her arms.

She later changed into a pair of ripped jeans and wrapped the cardigan around her shoulders after her day in the sun. 

Fun in the sun: Jennifer Lopez was happy and relaxed during a break on the beach in Rio De Janiero Brazil, where her boyfriend Casper Smart helped son Max bury one of her bodyguards in the sand

Hugging close; Jennifer's toyboy beau Casper looks more than comfortable hugging her daughter Emme who was wrapped in a towel

Casper looked more than comfortable playing stepfather to the children, hugging little Emme in a towel and taking Max for a stint in the sea on a mini body board.

However, things haven't always gone smoothly for Jennifer on the South American leg of her tour.

Last Thursday, she was robbed just after leaving a clinic where she was being treated for a stabbing pain in her back.

Hitting the surf: J-Lo was every inch the doting mother today, playing with her children in the sand and encouraging little Max to take a dip in the ocean with Casper

Hands on stepfather: The heavily tattooed Casper looked like a natural as he helped Max enjoy his mini bodyboard

During her concert a few hours later at the GEBA stadium in Buenos Aires a thief reportedly stole personal items including computer, a camera and a bag with personal documents from her dressing room.

But it seems Jennifer's back pain was related to her children, and she took to Twitter to explain on Thursday, writing: 'Got an xray this morning...all good...pulled back muscle. Coconuts getting too big to carry both at once. Awww... #timeflies :( '

Taking a break: Jennifer was enjoying some respite from her busy Dance Again tour which saw her perform in Buenos Aires last week