Kyle Sandilands and Jackie ‘O’ Henderson have weighed in on Robert Irwin’s latest jaw-dropping modelling shoot.

The Wildlife Warrior, who is the son of the late icon Steve Irwin, stripped down to his underwear to star in a Bonds campaign designed to help bring the Aussie brand to the US.

The radio duo revealed their wild theory about the ‘bulge’ in Robert Irwin‘s undies after it became the topic of conversation online.

They claimed Robert may have put something in his pants to ‘pad it out’.

‘They put moisturised bread down there. They soften and mould it, like Play-Doh,’ Jackie said.

‘Why would they bother doing that?’ a shocked Kyle responded, as Jackie explained it helped make the area look more well-proportioned.

Kyle Sandilands and Jackie ‘O’ Henderson have weighed in on Robert Irwin’s latest jaw-dropping modelling shoot

‘[Without this] It always looks too small, doesn’t look padded out!’ she said.

This theory was previously supported by Rebecca Judd in 2020, as she exposed the underwear industry’s most notorious trade secret.

On KIIS FM’s 3pm Pick-Up, the footy WAG revealed that male models stuff their undies with white bread on photo shoots.

The purpose of this isn’t to enhance the man’s package, she said, but instead to round out the shape so it looks more presentable.

Bec added she had heard the rumour from a friend of hers who works in Bonds’ finance department.

Another trick of the trade is men’s dance belts, which helps lift and support the male genital parts.

Fans of the Irwin family have been left swooning after Robert debuted a sexy new photo spread published Thursday.

And, of course, since he’s an Irwin, it was only fitting that he posed with live animals in some of the photos – and according to the magazine, most of them were venomous.

The Wildlife Warrior, who is the son of the late icon Steve Irwin, stripped down to his underwear to star in a Bonds campaign designed to help bring the Aussie brand to the US

The radio duo revealed their wild theory about the ‘bulge’ in Robert Irwin’s undies after it became the topic of conversation online.  ‘They put moisturised bread down there. They soften and mould it, like Play-Doh,’ Jackie said

In one picture, Robert left little to the imagination as he wore a pair of white underwear, giving a smouldering look to the camera as a large snake was wrapped around his neck.

He also draped the snake around himself as he sat down in a chair in a pair of black Bonds underwear, showing off his washboard abs.

In another snap, he cuddled with a large lizard, but this time, Robert was more covered up in a casual white tank top and dark teal undies.

Robert later proved he’s not afraid of anything as the former zookeeper even had a large spider crawling up his arm as he lay with one leg up in the grass, showing off a pair of the gray boxers.

The photos have since gone viral, with fans from all around the world swooning at the all grown-up Robert.

There’s good news for his female fans – speaking to People, Robert revealed that he is currently single.

‘I’m single. It’s funny, I’m at this point in my life where I’m like, I’m so open to that, but I’m just waiting for the stars to align,’ he told the outlet.

However, he has an idea of how he might meet someone.

‘Interestingly, my parents, my sister Bindi met her husband [Chandler Powell] here — everyone met here at our wildlife sanctuary,’ he told the outlet of The Australia Zoo in Queensland, which is where he lives and works.

He explained that he was looking for an ‘American tourist’ visiting the zoo to court.