Lying on the beach is one of the great joys of a tropical holiday.

But Heidi Klum seems to prefer sprawling herself over her boyfriend Vito Schnabel if the latest thrilling photograph from her break on a mystery island on Sunday is any guide.

The 43-year-old professional clotheshorse is laying face down on top of her beau's muscular rear, seemingly enjoying a pleasant sunshine snooze. 

It comes after the shrewd publicity hound decided to undertake some PR and product testing while on her tropical vacation on Saturday.

She first released a quick video via Instagram where she was in one of her new numbers.

In the clip, the blonde beauty floats in the turquoise ocean on a large inflatable flamingo. 

Always wary of the sun, she shielded herself from the intense rays with a large pair of mirrored sunglasses and a woven straw hat.

Next, she posted what at first appears to be a lovely landscape photo, though closer inspection reveals the Project Runway stunner swimming in a pink bikini.

The former Victoria's Secret Angel has apparently enjoyed spending most of her time on the trip in a bathing suit.

On Friday, she shared a snap on Instagram, which showed her checking out the view from her luxury villa while wearing just a pair of bikini briefs.