MAFS: The bizarre story behind Martha Kalifatidis’ most expensive selfie

Married At First Sight star Martha Kalifatidis has shared the story behind one of her most infamous – and lucrative – Instagram photos.

When asked by Kyle and Jackie O on Tuesday which sponsored post she was paid the most for, the 31-year-old influencer said it was ‘bathtub one’.

She was referring to a post from Sunday, August 16, which was an advertisement for Sand & Sky clay masks.

‘Which sponsored post on your Instagram have you been paid the most to do?’ asked radio host Jackie ‘O’ Henderson.

‘The bathtub one,’ Martha said. ‘It was for Sand & Sky; it was the new range that they launched, the Tasmanian spring water.’

The photo in question showed Martha posing naked in a bathtub filled with ‘water flown in from Tasmania’, while covering her bare chest with one hand. 

Remember this? When asked on Tuesday which sponsored post she was paid the most for, the 31-year-old influencer said it was ‘bathtub one’. She was referring to this post from Sunday, August 16, which was an advertisement for Sand & Sky clay masks

Jackie added: ‘So as part of the pitch, they said that you had to be in the bath with this water?’

‘They sort of gave me a brief, and I had to tick all the boxes of the brief. They sent me a nude board and they did want me naked,’ Martha replied.

‘I think it’s a really nice shot,’ Jackie noted. ‘And who took that?’ 

Helping hand: Martha said that her boyfriend, Michael Brunelli (pictured), had taken the photo – and added that the whole process ‘took two days’ because they couldn’t get the right lighting 

Martha said that her boyfriend, Michael Brunelli, had taken the photo – and added that the whole process ‘took two days’ because they couldn’t get the right lighting.

‘My arms were bruised from holding on to myself in the bathtub for that many hours,’ she said. ‘People think it’s just, “Ah, just take a selfie,” but this was blood, sweat and tears!’

In June, the blonde spoke to Daily Mail Australia about her earnings as an influencer.

While she didn’t disclose a specific figure, she said she never could have imagined that creating sponsored posts at home would become her full-time job. 

Making bank: In June, the blonde spoke to Daily Mail Australia about her earnings as an influencer. While she didn’t disclose a specific figure, she said she never could have imagined that creating sponsored posts at home would become her full-time job

‘It is surprising,’ said Martha, who boasts 352,000 Instagram followers.

‘I worked as a makeup artist for so long and I knew that big brands turn over so much. And the number one thing that they all invest in is marketing,’ she added. 

Martha earns about $3,000 per sponsored post, according to a website that estimates influencers’ earnings based on their followers and engagement levels.

Some brands likely pay even more for multi-post deals, or to exclusively sign Martha up as the face of their campaigns across different platforms.

Martha rose to fame on Married At First Sight last year. She’s currently filming the upcoming season of Celebrity Apprentice Australia. 

Lucrative: Martha earns about $3,000 per sponsored post, according to a website that estimates influencers’ earnings based on their followers and engagement levels