Mother Of Four Heidi Klum, 42, Flashes Her Pert Bu*tt In Racy Spanking Snap - PHOTO

42-year-old mother-of-four, Heidi Klum flashed her p ert b um in a racy b&w snap of a man (maybe her toyboy Vito Schnabel? ) lifting her denim mini-sk irt and spanking her with a 'na ughty spoon'.....She posted the photo on Instagram.....