Ruby Rose packs on the PDA with girlfriend Harley Gusman as she flaunts her amazing abs in a white bikini during Formentera boat trip

They haven't been shy about showing their affection for one another while holidaying in Formentera so far.

And Ruby Rose and her girlfriend Harley Gusman couldn't resist indulging in a cheeky spot of PDA as they frolicked on board a yacht just off the shores of the Balearic island.

The tattooed Orange Is The New Black favourite, 30, was seen cuddling up to 24-year-old Harley on the boat, with the blonde nuzzling up to Ruby's neck.

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Cosying up: Ruby Rose and her girlfriend Harley Gusman couldn't resist indulging in a cheeky spot of PDA as they frolicked on board a yacht in Formentera on Thursday 

Cosying up: Ruby Rose and her girlfriend Harley Gusman couldn't resist indulging in a cheeky spot of PDA as they frolicked on board a yacht in Formentera on Thursday 

The Australian beauty was displaying her seriously ripped figure in a white sporty bikini top, complete with cut-out detailing and black criss-cross stitching.

Her defined abs were on full display, with her impressive collection of tattoos further serving to enhance her rippling stomach muscles.

The revealing top allowed onlookers to admire her various tattoos, including a red and yellow koi fish tattoo on her upper right arm, and a set of playing cards on her upper left chest.  

Meanwhile, Harley flaunted her peachy posterior in a simple black one-piece, which highlighted her trim frame. 

Making a splash: Ruby and Harley both looked sensational in their sporty swimwear as they lapped up the sunshine
Making a splash: Ruby and Harley both looked sensational in their sporty swimwear as they lapped up the sunshine

Making a splash: Ruby (L) and Harley (R) both looked sensational in their sporty swimwear as they lapped up the sunshine

Romantic swim: The lovebirds were seen embracing in the water, clinging on to one another during their dip in the ocean 

Romantic swim: The lovebirds were seen embracing in the water, clinging on to one another during their dip in the ocean 

Killer body: The model and actress was showcasing her enviable abs and impeccably toned figure
Killer body: The model and actress was showcasing her enviable abs and impeccably toned figure
Killer body: The model and actress was showcasing her enviable abs and impeccably toned figure

Killer body: The model and actress was showcasing her enviable abs and impeccably toned figure 

All aboard! The lovebirds were joined by a host of friends on board the boat for the afternoon 

All aboard! The lovebirds were joined by a host of friends on board the boat for the afternoon 

Quirky look: The TV favourite was sporting eye-catching blue braids in her short hairdo 

Quirky look: The TV favourite was sporting eye-catching blue braids in her short hairdo 

Simple swimwear: Harley flaunted her peachy posterior in a simple black one-piece, which highlighted her trim frame
Simple swimwear: Harley flaunted her peachy posterior in a simple black one-piece, which highlighted her trim frame
Simple swimwear: Harley flaunted her peachy posterior in a simple black one-piece, which highlighted her trim frame

Simple swimwear: Harley flaunted her peachy posterior in a simple black one-piece, which highlighted her trim frame

Taking the wheel: The group of friends took it in turns to navigate the boat 

Taking the wheel: The group of friends took it in turns to navigate the boat 

All muscle! Ruby gave onlookers serious gym body envy thanks to her rippling stomach muscles
All muscle! Ruby gave onlookers serious gym body envy thanks to her rippling stomach muscles

All muscle! Ruby gave onlookers serious gym body envy thanks to her rippling stomach muscles 

It was plain to see the passion between them as they cuddled up on board the yacht, where they were joined by a group of friends.  

Earlier in the day, Ruby showed off her washboard stomach and silky, sun-kissed skin in a pair of oversized denim cutoffs.

With her bikini top acting as an anchor for her entire ensemble, she threw on a matching white button-up with black design elements, and she painted her perfectly manicured nails with matching white polish.

Jetting off! At one point, Ruby ditched her pals as she took to the waters on a jet ski

Jetting off! At one point, Ruby ditched her pals as she took to the waters on a jet ski

Selfie time! The group were seen taking endless pictures on their phones as they caught some rays on deck

Selfie time! The group were seen taking endless pictures on their phones as they caught some rays on deck

Staying hydrated: Ruby was seen sipping from a bottle of fizzy water as she soaked up the sun

Staying hydrated: Ruby was seen sipping from a bottle of fizzy water as she soaked up the sun

Natural beauty: Harley looked stunning, showcasing her natural beauty by going make-up free

Natural beauty: Harley looked stunning, showcasing her natural beauty by going make-up free

Catching up: The gal pals chatted well into the evening as they enjoyed some rest 

Catching up: The gal pals chatted well into the evening as they enjoyed some rest 

Capturing the moment: The tattooed star also shared some of her own pictures on social media 

Capturing the moment: The tattooed star also shared some of her own pictures on social media 

She and her girlfriend Harley went public with their relationship after frolicking on the beach as part of Taylor Swift's girl squad on the Fourth of July.

And it seems that they are still in the throws of their honeymoon period, as the pair stayed close both on the shore and in the sea, where they appeared to snuggle beneath the warm Mediterranean waters. 

Born in Miami, Harley is the co-founder of Truly Organic, a luxury line of organic skin and hair products, which may explain her radiant complexion and even skin tone.  

Washboard stomach: Earlier in the day, Ruby slipped into denim cutoffs and a white bikini top as she enjoyed the sand and sun of the Spanish island of Formentera

Washboard stomach: Earlier in the day, Ruby slipped into denim cutoffs and a white bikini top as she enjoyed the sand and sun of the Spanish island of Formentera

So happy together: The Orange Is The New Black star was inseparable from her girlfriend
She gets it: Ruby's bikini top resembled a sports bra from a distance and included a large cut-out with string detailing between her breasts

So happy together: The Orange Is The New Black star was inseparable from her girlfriend 

Shred your style up in denim shorts by Ksubi like Ruby

If we had Ruby Rose's ultra fit body, we would wear teeny tiny shorts at every opportunity too. The model/actress kept up her signature rocker style even when hanging out in Ibiza, teaming an edgy stitched up bikini top with an over-sized shirt and these grungy ripped denim hotpants.

They're by Ksubi, an Aussie based brand made by surfers that captures the wild and free spirit of an indie lifestyle. We love the dark wash and distinctive cross marks on these shorts, which you can buy now by clicking the link (right) to Revolve.

If you fancy giving your beach dress a day off then some shorts like Ruby's are definitely the way forward. But if you want to see what the rest of the virtual high street has to offer in the distressed denim department, check out our edit below. Everything is under $50 so check them out!

* PRICES MAY NOT BE AS ADVERTISED
Camera-ready: Accustomed to the spotlight, Ruby was happy to pose for photographs 

Camera-ready: Accustomed to the spotlight, Ruby was happy to pose for photographs 

Inked up: Rose's flowing white shirt exposed her decolletage, giving onlookers a glimpse of the tattoo of playing cards on her upper left chest

Inked up: Rose's flowing white shirt exposed her decolletage, giving onlookers a glimpse of the tattoo of playing cards on her upper left chest

Can you take our picture? Harley seems totally at ease with Ruby's significantly higher profile, at times offering to take snaps of Ruby with her adoring fans 

Can you take our picture? Harley seems totally at ease with Ruby's significantly higher profile, at times offering to take snaps of Ruby with her adoring fans 

As Ruby flaunted her gym-honed body, Harley stayed under wraps, choosing a relatively modest black one-piece that kept her assets firmly under wraps.

She took to the water like a fish, at time straddling a water bike, all the while keeping her eyes on her much more famous girlfriend.

Harley seems totally at ease with the mismatch in their public profiles and happily watched as strangers and acquaintances asked for pictures with Ruby, some of which Harley was kind enough to snap herself. 

Model in motion: Ruby was totally at ease with the water and dove right in
Good form: A tried and tested model, she arched her back even when diving

Model in motion: Ruby was totally at ease with the water and dove right in 

Come on in! Harley waited patiently for her lover in the water

Come on in! Harley waited patiently for her lover in the water

Together again: Harley seemed to embrace Ruby beneath the water, helping her stay afloat while also offering some much-appreciated affection 

Together again: Harley seemed to embrace Ruby beneath the water, helping her stay afloat while also offering some much-appreciated affection 

Pops of colour: Ruby accented her black-and-white ensemble with blue braids in her hair and blue detailing on her shirt 

Pops of colour: Ruby accented her black-and-white ensemble with blue braids in her hair and blue detailing on her shirt 

Speed demon: Harley looked endlessly glam as she straddled a water bike

Speed demon: Harley looked endlessly glam as she straddled a water bike

At ease: The American entrepreneur had a serene demeanor, at times seeming meditative as she waited for her girlfriend to join her on the bike and in the water
Stretch: Harley clearly understands the benefits of stretching and breathing

At ease: The American entrepreneur had a serene demeanor, at times seeming meditative as she waited for her girlfriend to join her on the bike and in the water 

This doesn't get old: Harley frequently admired Ruby's taut form

This doesn't get old: Harley frequently admired Ruby's taut form

Drying off: Rather than air drying, Ruby used a black towel to pat herself down after her swim
Tight squeeze: Ruby's black bottoms offered a counterpoint to her white top

Drying off: Rather than air drying, Ruby used a black towel to pat herself down after her swim 

Tender: As they walked along the side of the boat, Ruby reached back to touch her girlfriend

Tender: As they walked along the side of the boat, Ruby reached back to touch her girlfriend

Ruby has been making waves in Hollywood ever since her breakout role in the third series of Orange Is The New Black.

On Wednesday The Hollywood Reporter revealed that the Australian beauty is in negotiations to star alongside Fan Bingbing and Jason Statham in the sci-fi flick Meg. 

Statham plays a former Naval captain and expert diver recruited to rescue Chinese scientists stranded at the bottom of the Mariana Trench and under attack by a prehistoric ancestor of the Great White shark. 

Strength: Ruby demonstrated just how taut her core is as she lowered herself into the water

Strength: Ruby demonstrated just how taut her core is as she lowered herself into the water

Let's ride! Harly loved steering her water bike through the choppy waters

Let's ride! Harly loved steering her water bike through the choppy waters

My turn: Ruby exuded just as much confidence, at times running to get on board her bike
I'm coming! Ruby didn't want to miss any of the action on the water

My turn: Ruby exuded just as much confidence, at times running to get on board her bike 

Body art: Throughout the day friends had the chance to admire Ruby's tattoos, including a red and yellow koi fish tattoo on her upper right arm

Body art: Throughout the day friends had the chance to admire Ruby's tattoos, including a red and yellow koi fish tattoo on her upper right arm

Full house: Ruby's boat was packed with endlessly cool friends, who seemed to share Ruby's edgy, boho vibe 

Full house: Ruby's boat was packed with endlessly cool friends, who seemed to share Ruby's edgy, boho vibe 

Rose is slated to play Jaxx, described as a kick-ass engineering genius and member of the stranded marine research team. 

Jon Turteltaub, perhaps best known for the National Treasure movies, will direct.  

Producers plan to release the film on March 2, 2018.

Girls in black: As laid-back as she is, Harley took great care to make sure she looked turned out at all times, even ringing her hair dry before seeing her beloved

Girls in black: As laid-back as she is, Harley took great care to make sure she looked turned out at all times, even ringing her hair dry before seeing her beloved

Wrap up: Aware that the breeze can greatly affect the temperature, Ruby wore layers so she could easily transition from day to night, land to water 

Wrap up: Aware that the breeze can greatly affect the temperature, Ruby wore layers so she could easily transition from day to night, land to water 

Wedgie: At times Ruby's well-fitted briefs got lost in her pert posterior

Wedgie: At times Ruby's well-fitted briefs got lost in her pert posterior

Effortlessly elegant: Ruby looked serene as she took to the water 

Effortlessly elegant: Ruby looked serene as she took to the water 

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