How cheeky! Elsa Pataky shows off her pert derriere and risqué G-string underwear in a VERY sheer black mesh dress

At home she's a boho beach babe mother of three.

But Elsa Pataky showed a very different side to her on Friday when she appeared in Spain to present her new advertising campaign for lingerie brand, Women'Secret.

She seemed excited to continue showing off the product, even on the red carpet, wearing a sheer black mesh dress that left her G-string and lacy bra on display.

If you've got it, flaunt it! Elsa Pataky stepped out boldly in a sheer mesh dress with sequin detail on Friday to promote her new lingerie ad campaign

Elsa was in Spain to promote her 'musical' We Are Sexy Women, which sees the now Byron Bay-based actress dance on stage in a series of limited edition lingerie from the intimates brand.

As she posed for the cameras, the fitted black mesh number encased and highlighted her curvaceous figure. 

The sequin detail embroidered into the dress was shaped into downward arrows, which further highlighted what was left visible by the garment.

Modesty sequins? While the sequin embroidery on Elsa's frock covered some of her modesty  the 40-year-old's underwear was still easily visible

Work it: Despite the risque nature of the dress, Elsa seemed comfortable and more than happy to strike a pose for waiting cameras

Eight thick horizontal stripes, slightly pointing down, began at her neck and ended at her hips. They were cross hatched by three thin vertical stripes reaching from the dress' neckline to the knee-length hem. 

She accessorised the daring frock with a structured black clutch with a fluffy key chain attached.

The mother-of-three, who married Hollywood heartthrob Chris Hemsworth in 2010, wore a pair of drop silver earrings, which matched her stiletto heels.

Dancing shoes! The Spanish-born actress flaunted her unique footwear, a pair of high heels covered in small mirrors

Her heels were covered in small mirrors and appeared reminiscent of a disco ball, which further added to Elsa's cheeky look.

Elsa kept it casual with her hair styling and opted to pull her blonde locks into a messy bun atop her head, with the shorter locks falling away to frame her face.

She wore an understated face of makeup and highlighted her crystal blue eyes with a swipe of mascara before drawing attention to her lips with a deep pink colouring.

Wispy: The now Byron Bay-based actress kept things casual up top, pulling her hair into a messy bun and allowing the flyaway strands to frame her face 

Sparkle sparkle! Elsa shone on Friday from head to toe, adding a pair of drop diamond earrings to complete the look

The comments below have not been moderated.

The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline.

By posting your comment you agree to our house rules.

Who is this week's top commenter? Find out now