Dubois – who shares five-year-old twins Arabella and Bennet with wife, Leonie – has revaled that he still hasn't broken the scary news to his children.
Speaking to Osher Günsberg's podcast this week, the 57-year-old, admitted: 'I don't (talk to them about cancer). They're five-years-old.'
The Australian designer was first diagnosed with plasmacytoma myeloma in 2011 and despite the difficult diagnosis he maintains he's positive he can overcome this.
"Daddy exercises every day, daddy meditates every day, daddy cuddles me every day, daddy eats great food every day," he reveals he tells his children.
"And, the result of that will be the longevity of my life. Whether that is a year or 20. Let's cross that bridge when we come to it."
Sending love and strength to the star during this tough time.