EXCLUSIVEHeidi Klum, 51, goes TOPLESS for beach day with thong-clad model daughter Leni, 20, and husband Tom Kaulitz, 34, on sizzling Sardinia break

Heidi Klum went topless for a sizzling day at the beach in Sardinia, Italy

The runway icon enjoyed a beautiful day by the ocean with her husband Tom Kaulitz, 34, and daughter Leni, 20, on Tuesday. 

Bikini top gone, Heidi sent temperatures soaring as she sat topless beside her spouse on a lounge chair.

Her daughter wore a colorful thong bikini as she put on an affectionate display with her boyfriend Aris Rachevsky. 

While more covered up, Heidi, who celebrated her 51st birthday earlier this month, donned a semi-sheer mustard yellow cover-up as she cuddled up to her husband.

Heidi Klum enjoyed a beach day in Sardinia, Italy with her husband Tom Kaulitz, 34, and daughter Leni, 20, on Tuesday

Heidi Klum enjoyed a beach day in Sardinia, Italy with her husband Tom Kaulitz, 34, and daughter Leni, 20, on Tuesday

Her daughter Leni donned a colorful thong bikini

Her daughter Leni donned a colorful thong bikini 

The couple looked oh-so in love as they shared a smooch on their chairs and gazed lovingly at one another.

As they strolled across the sand together, Tom carried both of their sandals as Heidi gently rested one hand on his shoulder. 

The catwalk queen added pops of glam into her beachy look with a gold necklace and studded earrings.

Tom was looking fashionably beachy in a light blue button down that was partially unbuttoned along with flowing trousers and a backwards cap. 

Leni, meanwhile, also enjoyed a bit of sunbathing as she laid out on a lounge chair. 

Her brunette hair was piled up into a loose bun and she shaded her eyes with fashionable sunglasses. 

The model packed on the PDA with her beau as they approached the water, at point climbing sitting on various oceanfront boulders. 

She went topless as she relaxed on a lounge chair placed beside her husband

She went topless as she relaxed on a lounge chair placed beside her husband 

The star added bits of glam into her beach look with a gold necklace and fashionable sunglasses

The star added bits of glam into her beach look with a gold necklace and fashionable sunglasses

She also donned a mustard yellow cover-up and carried a beachy tote bag

She also donned a mustard yellow cover-up and carried a beachy tote bag 

The couple, who wed in 2019, shared a kiss

The couple, who wed in 2019, shared a kiss 

Heidi snuggled up to her husband as she wrapped up in a towel

Heidi snuggled up to her husband as she wrapped up in a towel 

Kaulitz donned a blue button down, trousers, and a cap

Kaulitz donned a blue button down, trousers, and a cap 

She displayed her incredible figure in a floral print bikini

She displayed her incredible figure in a floral print bikini 

Klum beamed with happiness as she stood upon the beach

Klum beamed with happiness as she stood upon the beach 

The couple enjoyed some quality time together in the sunshine

The couple enjoyed some quality time together in the sunshine 

Leni was joined by her boyfriend Aris Rachevsky for the beach day

Leni was joined by her boyfriend Aris Rachevsky for the beach day 

Heidi has been married to Tokio Hotel rocker Tom since 2019.

Given Heidi is 16 years older than her husband, the pair's age gap has previously made headlines. 

'I'm 50 and no longer 20. I'm not a young girl who hasn't experienced anything yet or has no idea about life,' she acknowledged to Glamour UK last year.

'Time won't stand still for me and Tom will never catch up with me. I'll always be 16 years older, and I'm aware of that,' Heidi continued.

'I know that I will look older than him sooner. Maybe it will be a problem for me in ten years' time, maybe he won't like it then,' she reflected.

The star wore her brunette hair up into a messy bun
She sported a necklace and anklet for the beachy occasion

 The star wore her brunette hair up into a messy bun

Leni is following in Heidi's modelling footsteps and in 2020 shared her first magazine cover - Vogue Germany - with her mother

Leni is following in Heidi's modelling footsteps and in 2020 shared her first magazine cover - Vogue Germany - with her mother

The 20-year-old relaxed on a lounge chair

The 20-year-old relaxed on a lounge chair 

She put on an affectionate display with her love

She put on an affectionate display with her love

The couple stood along the water

The couple stood along the water 

They relaxed on boulders located by the waves

They relaxed on boulders located by the waves 

Heidi's spouse carried their footwear

Heidi's spouse carried their footwear

'In 20 years, I'll be 70. I usually plan for the future – but with my husband, I live in the here and now.'

She was previously married to singer Seal from 2004 to 2015 and hair stylist Ric Pipino from 1997 to 2002. 

The mother of four shares Leni with her ex, Italian businessman Flavio Briatore, and sons Henry, 18, Johan, 17, and daughter Lou, 14, with Seal.

Leni is following in Heidi's modelling footsteps and in 2020 shared her first magazine cover - Vogue Germany - with her mother.

She has since signed to IMG Models and has worked with GHD, Dior, and Intimissimi with Heidi.