Fashion & Beauty by Shireen Khalil  And this snap was no different. The 55-year-old took to her Instagram on Monday to share another "stunning" image of her posing on a deck a glamorous blue bikini. "Ain't no Monday blues in this @mondayswimwear!" she wrote. The two-piece set features an off-the-shoulder bikini top with ruffles and belongs to the brand owned by Aussie Instagram star Tash Oakley. Apart from the beautiful design and colour, fans couldn't help but comment on how "incredible" the former Big Brother host looked. Sonia Kruger, 55, poses on a deck, showing off her âincredibleâ figure. Picture: Instagram/SoniaKruger