Smiling at the camera, the 47-year-old mum of three flashed her black lace bra through a sheer printed blouse, teaming the look with a tight black pencil skirt and strappy heels.
This week a recording of Cass slamming her ex in an extraordinary outburst was released after its existence had been exclusively revealed by New Idea back in December.
Cass initially denied that the interview ever took place.
“He’s thrown three weddings for goodness sake. Who needs three weddings in a year, give us a break,” Cass told paparazzo journalist Jonathan Marshall.
“Three weddings and a funeral. We had a funeral and it was my dad’s.”
Cass went on to claim her ex had “a lot to hide”.
New Idea reached out to Karl Stefanovic's agent for comment on Cass' claims.
“I’ve done a lot of reading about narcissism,” she added.
“Everything he says is about this fake person who lives in this fake castle, it’s not real,” Cass continued.
LISTEN to the secret recording of Cass Thorburn SLAMMING ex-husband Karl Stefanovic