And now the 31-year-old blonde, who lost 30 kilograms during her time on the weight loss show, is set to be the program's new host.
She opted for a colourful, floral patterned two-piece, but spent most of the afternoon wearing just the skimpy bottoms Meanwhile, journalist Hayley stripped down to a stylish black bikini, but made sure to keep her top on during their sun-soaked outing.
Taking to Instagram on Saturday, Fiona shared a photo of what looked like her new security access pass onto the set of the Channel Ten reality show, with the image captioned: 'New beginnings'.
And loved, just for me.
Since then, she's been a staunch advocate for body positivity, and I'm incredibly positive about her body, especially her breasts! I didn't even know that this kind of connection could exist.
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Hayley had sent the plus-size model a direct message and the two women soon began talking regularly.
Speaking on The Morning Show earlier this month, Fiona said she had 'no idea' Hayley was going to propose during their exotic getaway The couple first 'met' on Instagram while Fiona was holidaying in Europe last June.