Heidi Klum showed off her sensational figure on Friday while enjoying a beach day in St. Barts with her younger husband Tom Kaulitz. 

The German supermodel, 52, sizzled in a light blue thong bikini that highlighted her toned figure.

The star — who recently went topless on the beach twice — accessorized the look with white rim sunglasses and gold earrings.

Meanwhile Tom, 36, rocked a pair of colorful swim shorts and a gold necklace while soaking in the sun.

The loved-up pair held hands as they emerged from the ocean after taking a dip.

Heidi also took to her Instagram over the weekend, sharing a series of photos and clips from her recent beach adventures. 

One video from Friday showed her and the Tokio Hotel guitarist lounging on a towel together, with his hand playfully placed under her bikini top.

Another Instagram Story showed her wearing a sleeveless neon yellow dress while holding a salad.

She wore her blond hair cascading down and shielded her eyes with a pair of large sunglasses. 

The mom-of-four also shared a clip of her German musician husband stepping out of the ocean in swim trunks, showing off his muscular physique. 

Another clip showed them cuddling in bed, with Heidi giving him a sweet kiss on the neck.

She also shared a snap of them during a New Year's Eve outing with Tom's twin brother Bill Kaulitz, as well as photographer Antoine Verglas and model Brianna Bardhi.

Heidi looked sensational in a plunging cheetah dress with a thigh-high slit. She paired the look with a black purse.

Meanwhile Tom sported a colorful floral shirt and matching pants.

The model has been enjoying a sun-kissed getaway to St. Barts with her husband this past week and has been wearing next-to-nothing for part of it.

Earlier this week the star made a splash again, going topless for another beach day with her spouse.

The catwalk queen worked a cherry print bikini and sheer cover-up, but that didn't stay on for very long.

Klum ditched her bikini top and wore just her swimsuit bottoms, white sunnies, and an elegant pearl necklace that dangled past her cleavage as she headed into the water.

The romance between the Project Runway alum and the guitarist first caught public attention in March 2018, when they were seen sharing a passionate kiss while leaving a Lorraine Schwartz launch party, linked arm-in-arm.

Their relationship quickly intensified, and by December 2018, Kaulitz proposed.

The couple exchanged vows in a private ceremony just seven months later, before celebrating with a grand event in Capri, Italy, in August 2019.

Following their wedding, Kaulitz embraced his role as a stepfather, joining Klum in raising her children.

Klum has a daughter, Leni, with former boyfriend Flavio Briatore, and sons Henry, 20, Johan, 19, and Lou, 16, with her ex-husband Seal, to whom she was married from 2005 to 2014.

During their marriage, Seal also adopted her daughter, Leni, now 21, when she was just five-years-old.

Meanwhile, Klum's topless adventure comes two years after she revealed she's unapologetic about sharing topless or nearly naked photos.

She also said that there’s a 'strategy' behind her love for showcasing her figure.

'I'm super comfortable naked today. To the point where my kids are like, "Mom, I have a friend coming over,"'' she told People in 2023.

'As soon as someone is coming, I put my top on,' Klum explained. 'But if no one is there, suns out buns out.'

'I just don’t like tan lines because I wear so many different outfits. I don’t want to have straps anywhere from tan lines. It’s very strategic.'