Kourtney Kardashian shares a sultry bathing suit snap after wowing on the beach in St Barts

She's proudly modelled a host of bikinis as she vacationed with her family in St Barts.   And on Friday, Kourtney Kardashian whipped out yet another head-turning number from her wardrobe of beach wear.  The newly single 36-year-old Instagrammed a photo of herself looking fantastic in a plunging gold bathing suit, which she displayed while standing poolside. <!-- rectangle --> (