The really Wilde show! Olivia shows off her gorgeous figure in tiny bikini during Hawaii beach day with Jason Sudeikis and son Otis

She loves to show she has brains as well as beauty.

But Olivia Wilde made sure it was the latter that was very much at the fore when she showcased her body in an itsy bitsy teeny weenie bikini in Hawaii on Saturday. 

The 31-year-old flaunted her womanly curves as she enjoyed a family day at the beach with her funnyman fiance Jason Sudeikis and their toddler son Otis. 

Hawaii is it so cold: Olivia Wilde looked like she was feeling the chill after taking a dip in the sea at the tropical paradise on Saturday

Hawaii is it so cold: Olivia Wilde looked like she was feeling the chill after taking a dip in the sea at the tropical paradise on Saturday

The actress showed off a body to be proud of in her barely there orange two-piece as she made the most of the tropical weather. 

Cowboys And Aliens star Olivia, who famously changed her surname from Cockburn in honour of flamboyant Irish writer Oscar Wilde, also displayed her delightful derriere when she went for a splash in the ocean waves.

Of course it is still winter, even in Hawaii, and she looked a little shocked to be caught by a chill wind when she finally emerged from the water, her toned torso glistening in the sunlight.

Her self-styled comedian beau Jason, 40, kept his torso covered up in a white T-shirt and baggy shorts, while he accentuated his features with a trendy beard.

Putting on a really Wilde show: The actress drew attention to her delightful derriere when she went for a splash

Putting on a really Wilde show: The actress drew attention to her delightful derriere when she went for a splash

Who needs Baywatch: Olivia, who famously changed her surname from Cockburn in honour of flamboyant Irish writer Oscar Wilde, was the perfect bikini babe
Who needs Baywatch: Olivia, who famously changed her surname from Cockburn in honour of flamboyant Irish writer Oscar Wilde, was the perfect bikini babe

Who needs Baywatch: Olivia, who famously changed her surname from Cockburn in honour of flamboyant Irish writer Oscar Wilde, was the perfect bikini babe

Swingers: The pair showed their adorable son Otis a good time by lifting him high into the air

Swingers: The pair showed their adorable son Otis a good time by lifting him high into the air

The pair took great delight in showing their 20-month-old son a good time on the golden sands, with each taking a hand so they could give him a fun swing.

And Olivia was spotted having more fun with Otis when she returned to the beach later in the day, having changed into a black bikini.

The Drinking Buddies star also wore a white cover-up, and was spotted playing in the sand with her little boy.

Hurry up lads: Olivia did not seem amused when her bearded beau struggled to keep pace
Hurry up lads: Olivia did not seem amused when her bearded beau struggled to keep pace

Hurry up lads: Olivia did not seem amused when her bearded beau struggled to keep pace

They can't get enough: After a brief break and an outfit change, Olivia and her family returned to the beach

They can't get enough: After a brief break and an outfit change, Olivia and her family returned to the beach

She's not ruff: The actress and her son giggled with glee when a large dog came over to greet them

She's not ruff: The actress and her son giggled with glee when a large dog came over to greet them

At one point, Otis and his mother giggled with glee when a large dog came over to greet them.

Olivia was having a well-earned rest after lending a helping hand to those in need. 

On Wednesday, the saucy starlet teamed up with Bombas and The Gap to hand deliver sock care packages at The Los Angeles Mission. 

Life's a beach: Olivia was seen kneeling in the sand as she played with her little boy

Life's a beach: Olivia was seen kneeling in the sand as she played with her little boy

She's so transparant: The star's second look was a white see-through cover-up over a black two-piece

She's so transparant: The star's second look was a white see-through cover-up over a black two-piece

Hatagirl: She made sure she did not catch a cold by wrapping up and donning a fabulous fedora

Hatagirl: She made sure she did not catch a cold by wrapping up and donning a fabulous fedora

It's clear the actress was thrilled to be taking part in the event, as she took to Instagram to delight in the day.

She captioned an image: 'Such an honor working with @gap and @bombassocks on this fantastic project.

'We just dropped off a care package of socks, the #1 most requested clothing item in homeless shelters, at @TheLAMission to kick off a one million pairs of socks donation for this holiday season. #socksforall.'

Daddy swing: Strongman Jason would soon give his boy an unexpected thrill by giving him a one-man spin

Daddy swing: Strongman Jason would soon give his boy an unexpected thrill by giving him a one-man spin

Socking it too them: Olivia hand delivered care packages at the Los Angeles Mission on Wednesday

Socking it too them: Olivia hand delivered care packages at the Los Angeles Mission on Wednesday

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