She posed topless earlier this year in a racy spread for fashion magazine, V.
And now Cody Simpson's girlfriend is shedding her clothes again, this time for her latest Guess campaign.
The 19-year-old swimwear model shared a sneak peek of the new advertisement, in which she is seen wearing just a pair of jeans featuring a floral motif as she covers her breasts with her arms.
'Sneak peek, me n my custom denim! New @GUESS campaign coming out his month,' she captioned the photo.
'Going on 15 years as a Guess Girl, this may be my favourite campaign yet!'.
The model also thanked the founder of Guess, writing: 'Thank you [Paul Marciano] for always supporting me and my career, so much love for you and the whole team.'
The model and her Australian musician boyfriend Cody, 17, have recently been holidaying in the Seychelles, arriving with friends on Saturday.
Gigi showed off her assets when she Instagrammed a shot of herself bikini-clad on Monday.
With her face turned away from the camera, the American IT girl pressed her derriere against the outside of a building, showing off her outstretched, endless legs.
The Vogue Fit ambassador displayed her lithe form in a powder pink bikini top and revealing animal print string bottoms, her hair loose in casual beachy waves.
Meanwhile Cody also obliged, posting an Instagram shot of himself still dripping wet post surf as he stood flanked by a male friend and Gigi.
In the background a stack of boards sat atop a car, with Cody writing: 'Fun little sesh with some good Californians. And the chicks came out too!!'.
Another shot showed the Surfboard singer rinsing away sea water with bottled water framed by the waves behind.
Both Gigi and Cody have been documenting their trip over the past few days, sharing envy-inducing scenic snaps of the golden sands and azure waters.
Cody even filmed a brief film clip showing off their lavish abode for the week, which include a sizable infinity pool and private ocean views.
It's been non stop jetsetting for the duo who recently travelled to Dubai to spend New Years together.
The genetically blessed couple were joined by a group of friends, including Kendall Jenner and Selena Gomez, with the clan being dubbed 'the new brat pack'.
The large party got dolled up in sparkling mini dresses and sexy, slinky gear on New Year's Eve for a beach party thrown by fashion house Balmain.
An array of Instagram shots were uploaded throughout the night, showing envious followers just how much fun the new brat pack were having.
© Associated Newspapers Ltd.