Glass admits she hasn't had time to change into any of the outfits she packed to wear on the show.
"I knew I was going to be on TV, so I packed my bags full of outfits that were practical, but also kind of 'construction-site chic'," she tells Woman's Day.
"By the end of day one, it was anything goes. It gets pretty gross - we only shower every couple of days and end up wearing the same clothes for three days."
The pair joked about it during last night's episode when they embraced at the end of a challenge. Cat said she'd brushed her teeth before they kissed, while Jeremy said he hadn't.
"Cat jokes that now I've finally seen her at her worst," Jeremy jokes to the mag.
"But if she smells as much as she says, I must be as bad because I don't notice a thing."
- nzherald.co.nz