The three ladies left battling it out are: media executive Elise Stacy, accessories designer Laura Byrne and nanny Tara Pavlovic.
While on air radio host Matty Acton asked, 'What was it like seeing her nude for the first time?'
Matty responded, 'That first night was really, really special and I think it was, it was nice to finally have some time without the cameras.'
Sportsbet has listed Laura as the favourite, with the frontrunner recently admitting she is 'absolutely' in love with Matty.
However, Elise is not far behind. The former Australian national hockey player also got people talking when she implied that she and Matty have spent time in bed.
'He's not a morning person,' she told OK Magazine. 'He doesn't get out of bed until 8:30am.'
Who will the lucky lady be?