Heidi Klum is very friends with her husband Tom Kaulitz

They may have been married for four years, but it looked like Heidi Klum and younger husband Tom Kaulitz were still in the honeymoon phase when they went for some serious PDA on Saturday.

The smitten couple were all over each other as they kissed passionately aboard a luxury yacht off the south of France.

America’s Got Talent judge Heidi, 49, was very handy with her 33-year-old partner, placing her hand on his thigh and pulling him in for an intense love bite.

As the German supermodel pulled him closer, she tenderly placed one hand on his cheek while the other wrapped around his neck.

The celebrity couple literally sat in luxury and enjoyed fun in the sun together with chilled glasses of wine.

summer loving!  Heidi Klum was very skilful when she packed the PDA with her husband Tom Kaulitz on Saturday during a trip to southern France

summer loving! Heidi Klum was very skilful when she packed the PDA with her husband Tom Kaulitz on Saturday during a trip to southern France

Heidi looked incredible in a white bikini and a black captain’s hat, which she wore atop her blonde tresses.

She also wore a crochet dress which she took off before getting hot and raunchy with Tom.

Tokio Hotel band member Tom showed off his bare abs wearing only swim trunks and an orange hat.

The lovebirds looked as in love as newlyweds loitering on the edge of the boat.

As they pushed their legs off the rim of the vessel, Heidi inch closer to her husband, her lips closer to his.

Tom, too, showered his wife with affection, while Heidi rested her head on his lap.

When the couple weren’t flaunting their love, they were enjoying quality time together on the water.

The duo enjoyed the sights as they went paddle boarding together.

hot and heavy!  As she pulled him closer, she threw her legs over his thighs and tenderly placed one hand on his cheek while she cupped the other around his neck

hot and heavy! As she pulled him closer, she threw her legs over his thighs and tenderly placed one hand on his cheek while she cupped the other around his neck

Tender, loving care: The model tenderly placed a hand on his neck as they showered each other with hickeys

Tender, loving care: The model tenderly placed a hand on his neck as they showered each other with hickeys

Kiss Me!  The couple has been married for four years but looked as smitten as newlyweds beach babe!  The runway queen wowed in a white bikini

Kiss Me! The couple has been married for four years but looked as smitten as newlyweds

Jamie Oliver reveals the reason he renewed his vows with

Toast to the good life!  The couple sipped from their chilled glasses of wine

Toast to the good life! The couple sipped from their chilled glasses of wine

Hats off to you!  The couple wore his and her hats

Hats off to you! The couple wore his and her hats

Heidi took the lead as they navigated the peaceful waters before making it to shore.

The beauty, clad in her fishnet dress and with a hat atop her tresses, beamed with happiness as she walked barefoot along the pebble-strewn beach.

It comes after Heidi said she feels like she’s 25 and is nearing her 50th birthday.

The supermodel will celebrate the milestone on June 1 and admitted she actually feels half her age and has “more energy” than her husband.

Making a splash: Klum dangled her feet from the edge of the boat while her husband took a refreshing dip

Making a splash: Klum dangled her feet from the edge of the boat while her husband took a refreshing dip

body language!  Klum drew closer to her handsome husband

body language! Klum drew closer to her handsome husband

That's enough!  A shirtless Kaulitz showed his arm tattoo

That’s enough! A shirtless Kaulitz showed his arm tattoo

Kiss Kiss: The Tokio Hotel band member showered his wife with affection

Kiss Kiss: The Tokio Hotel band member showered his wife with affection

Lifestyles of the rich and famous: The couple has been enjoying a lot of fun in the French sun lately

Lifestyles of the rich and famous: The couple has been enjoying a lot of fun in the French sun lately

She told Entertainment Tonight, “To be honest, I’m not going to let that number change my path or what I do.” It’s just a number to me, you know? Because I don’t feel 50 inside.

“I mean, sometimes I look in the mirror and I’m like, ‘Oh yeah, I’m 50.’ But on the inside, I feel like I’m 25. I’m full of energy.

“My husband is 33 and I know I have more energy than him!”

“So I feel like so far so good… the birthday doesn’t change anything for me.”

XOXO!  The dynamic duo enjoyed a lovely time together in the sunshine XOXO!  The dynamic duo enjoyed a lovely time together in the sunshine

XOXO! The dynamic duo enjoyed a lovely time together in the sunshine

fun at sea!  The lovebirds ended their day with a little paddling

fun at sea! The lovebirds ended their day with a little paddling

Cooperation!  Tom and Heidi navigated through the blue of the ocean

Cooperation! Tom and Heidi navigated through the blue of the ocean

All aboard the love boat!  The pair looked like they were about to share another kiss

All aboard the love boat! The pair looked like they were about to share another kiss

“My passions are the same – I love traveling and being there for my family.”

Tom is Heidi’s third husband. The guitarist was previously married to model Ria Sommerfeld from 2015 to 2018, but the couple had no children.

The supermodel was previously married to singer Seal, who adopted Klum’s firstborn, Leni, in 2009.

The couple were married from 2005 to 2014 and are the father of children Henry (17), Johan (16) and Lou (13).

Heidi added that she put the planning of her big day entirely in her husband’s hands.

Cheers to the good life!  Klum waited for her love with a glass of wine in hand

Cheers to the good life! Klum waited for her love with a glass of wine in hand

It's down!  She was cheeky as she lay next to her boyfriend

It’s down! She was cheeky as she lay next to her boyfriend

sea ​​of ​​vitamins!  Klum took off her chic crochet dress

sea ​​of ​​vitamins! Klum took off her chic crochet dress

Life is a beach!  The beauty beamed with happiness as she walked barefoot along the pebble-strewn beach Life is a beach!  The beauty beamed with happiness as she walked barefoot along the pebble-strewn beach

Life is a beach! The beauty beamed with happiness as she walked barefoot along the pebble-strewn beach

Milestone Birthday: It comes after Heidi said before her 50th birthday that she feels 25

Milestone Birthday: It comes after Heidi said before her 50th birthday that she feels 25

She explained that she is very happy to do so as she has spent so many years planning parties for her children.

She said, “I blamed my husband!” Because usually I’m the one, for the four kids I always come up with a big party, or you know, for me of course [husband].

“Well, I always like to throw big parties, invite all my friends, and think about all the shenanigans that come with that.”

“But I was like, ‘You know what? I’m 50 honey, this party is for you to find out.”

“He takes care of it for me.”

“Well, I’m excited! I’m just going to sit back and enjoy this day.’