Heidi Klum, 51, cuddles up to husband Tom Kaulitz, 34, at the beach on a family getaway with daughter Leni and her boyfriend Aris Rachevsky in Sardinia

Heidi Klum and her husband, Tom Kaulitz, were seen acting like newlyweds, even after five years of marriage, as they packed on the PDA during a family trip to the beach of Cala di Volpe, located in the north of Sardinia.

The couple couldn't keep their hands off each other as they cuddled next to each other on reclining beach chairs, before passionately making out.

After ditching her green and white striped cover-up, Klum could be seen showing off her incredible figure in a pink and blue floral bikini.

The 51-year-old supermodel and German guitarist, 34, looked inseparable as they proceeded to take a romantic walk together along the sand, before taking a dip in the ocean.

They were joined by Klum's sons Johan, 17, and Henry, 18, as well as daughters Lou, 14, and Leni, 20, and her boyfriend,  Aris Rachevsky, who she has been dating since 2019.

Heidi Klum and her husband, Tom Kaulitz , were seen acting like newlyweds, even after five years of marriage, as they packed on the PDA during a family trip to the beach of Cala di Volpe, located in the north of Sardinia

Leni, who has been following in her mother's modelling footsteps since gracing the cover of Vogue Germany at age 16, rocked a white bikini and a pair of low-rise, red and white striped bottoms.

For the laid-back excursion, the model wore her glossy brunette locks up in a sleek updo and looked relaxed as she laid on her stomach and tanned.

Klum and Kaulitz were seen indulging in ice cream cones as they walked barefoot on the beach.

Leni documented her sun-soaked getaway on Instagram by posting several sultry social media snaps.

In one image on her Instagram, Leni, who is signed with IMG Models Worldwide, sipped on a coconut as she showcased her toned physique.

Leni is the daughter of Heidi and Flavio Briatore, 74, and Heidi split from the businessman while she was pregnant with Leni in 2004.

Leni's biological father is Heidi's ex, Flavio Briatore. However, Heidi's ex-husband, Seal, who she was married to from 2005 to 2014, legally adopted her in 2009 after tying the knot with the Making The Cut star in 2005.

Over the past four years, Leni has made quite the name for herself in the modeling world.

Klum's daughter Leni, 20, and her boyfriend, Aris Rachevsky, who she has been dating since 2019

The couple couldn't keep their hands off each other as they cuddled next to each other on reclining beach chairs, before passionately making out

Leni, who has been following in her mother's modelling footsteps since gracing the cover of Vogue Germany at age 16, rocked a white bikini and a pair of low-rise, red and white striped bottoms

After ditching her green and white striped cover-up, Heidi could be seen showing off her incredible figure in a pink and blue floral bikini

This includes gracing the cover of Hunger, a feature in Glamour Germany as well as walking in Milan Fashion Week.

During an interview with Extra TV in 2021, Leni discussed a modeling tip she received from her mother when she started out in the industry.

'She's always telling me that I need to have fun, and she's always like, "Bounce around, be fun, be energetic, be excited,"' the star explained.

The media personality also explained that although both her mother and herself enjoying the modeling and fashion industry, their style choices are the complete opposite.

'She calls it grungy,' Leni stated, talking about how Heidi perceives her own personal fashion. 'I just call it oversized...never catch me in super tight jeans because I don't like wearing things that are uncomfortable.'