Alessandra Ambrosio protects her derrire volleyball

Protecting her assets! Supermodel Alessandra Ambrosio sprays sun lotion on her derrire during a game of volleyball

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UPDATED:

13:51 GMT, 15 October 2012

She is one of the world's most sort after models and she does everything in her power to keep her figure in immaculate shape.

And as she enjoyed a day on the beach, Alessandra Ambrosio made sure to protect her assets.

The 31-year-old was pictured on Sunday in Malibu spraying sun lotion on her bottom as she took part in a game of volleyball.

Protecting her assets: Alessandra Ambrosio was pictured on Sunday at a beach in Malibu spraying sun lotion on her bottom as she enjoyed a game of volleyball

Protecting her assets: Alessandra Ambrosio was pictured on Sunday at a beach in Malibu spraying sun lotion on her bottom as she enjoyed a game of volleyball

Protecting her assets: Alessandra Ambrosio was pictured on Sunday at a beach in Malibu spraying sun lotion on her bottom as she enjoyed a game of volleyball

Can't forget her legs! Alessandra worked her way from her derrire to her toned pins

Can't forget her legs! Alessandra worked her way from her derrire to her toned pins

Paying close attention, Alessandra looked back at to her derrire as she applied the sunscreen.

The mother-of-two then worked her way down to her toned legs as she soaked up the sunny California weather.

Stunning in a white triangle two-piece, the Brazilian beauty showed off her incredible post-pregnancy body, having given birth to her second child just five months ago.

Ready for some action: Wearing a white bikini, the 31-year-old hid her eyes behind a pair of glasses and opted to tie her hair up in a bun whilst sporting a red baseball cap

Ready for some action: Wearing a white bikini, the 31-year-old hid her eyes behind a pair of glasses and opted to tie her hair up in a bun whilst sporting a red baseball cap

Aiming high: The mother-of-two watched the ball rocket off as she gave it a hard hit

Aiming high: The mother-of-two watched the ball rocket off as she gave it a hard hit

Changing the rules of the game: The model proceeded to keep the ball as the game ended

Changing the rules of the game: The model proceeded to keep the ball as the game ended

In immaculate shape: Alessandra gave birth to her second child just five months ago

Good form: Ambrosio and her team mate both squatted as the ball came towards them

Good form: Ambrosio and her team mate both squatted as the ball came towards them

A day away from the runway: The model, who is engaged to Jamie Azur, looked to be in good spirits

A day away from the runway: The model, who is engaged to Jamie Azur, looked to be in good spirits

Getting into the game, she was seen jumping up in the air to get enough touches of the ball.

Taking the match very serious, she kept her hair back in one as she covered up her lock underneath a red baseball cap.

Enjoying her day off the runway, the Victoria's Secrets cover girl uploaded a picture to her Twitter account via Instagram of the beach.

The caption which accompanied the image was made up of several hashtags, she wrote: '#beach #weekend #summer #funnn #goodvibs #goodtimes #goodnight #sweetdreams #instalife #instamood'.

Keeping active: Alessandra enjoyed a little jog as she headed towards the net

Keeping active: Alessandra enjoyed a little jog as she headed towards the net

Giving it her all: The Victoria's Secret model was seen getting into the game

Giving it her all: The Victoria's Secret model was seen getting into the game

Giving it her all: The Victoria's Secret model was seen getting into the game

Letting off some steam: Ambrosio appeared to give off a roar as she paced up and down the sandy beach

Letting off some steam: Ambrosio appeared to give off a roar as she paced up and down the sandy beach

Beach babe: The Brazilian beauty showed off her toned and taunt stomach as she took a break

Beach babe: The Brazilian beauty showed off her toned and taunt stomach as she took a break

Changing the rules of the game: The model proceeded to keep the ball as the game ended

Changing the rules of the game: The model proceeded to keep the ball as the game ended

On Saturday Ambrosio bumped into actress Jessica Alba during a trip to Mr Bones Pumpkin Patch in Beverly Hills.

After warmly greeting one another, with Alessandra's fianc Jamie Azur planting a kiss on Alba, the ladies began chatting away.

Hunting for the best with her daughter Anja, four and son Noah, five months, the model wore a colourful shirt with a pair of denim shorts and sandals.

Fancy seeing you here! Jessica Alba greets Alessandra Ambrosio as they bump into one another at Mr Bones Pumpkin Patch in Beverly Hills on Saturday

Fancy seeing you here! Jessica Alba greets Alessandra Ambrosio as they
bump into one another at Mr Bones Pumpkin Patch in Beverly Hills on
Saturday

On the pumpkin hunt: Victoria's Secret star Alessandra was dressed in shorts and colourful top to take her kids out

On the pumpkin hunt: Victoria's Secret star Alessandra was dressed in shorts and colourful top to take her kids out

On the pumpkin hunt: Alessandra was dressed in shorts and colourful top to take her kids out