But it doesn't look like 'happily ever after' after all for the Queensland videographer and the New South Wales makeup artist, as Lauren sat her man down for a frank chat about their sex life (or lack thereof) in Tuesday night's episode.
The blonde beauty revealed concerns about Matt's 'intimacy issues' and lack of sexual dominance, telling 9Honey: 'I was constantly trying to gauge whether he was attracted to me and what levels of intimacy he was comfortable with.'
'I felt like I had to take a leading role,' she added.
Lauren, 31, told her husband she was worried their sexual preferences wouldn't match up before hinting she was interested in threesomes and swinging.
'I am a very sexually open person and I worry that it might be a bit much for you,' she admitted.
Her frank confession comes days after Lauren told Matt she 'used to be a lesbian' having engaged in intimate relationships with women before joining the Channel 9 social experiment.
Matt, 29, seemed to agree with his partner acknowledging to camera: 'Her sexual appetite might be too much for me.'