(which most presume is Heidi's), revealing her bare butt. His other hand holds a wooden "naughty spoon" which he presses against the mother-of-four's derriere.
Klum simply captioned the photo "Ouch."
Though she's no stranger to sharing bikini snaps on Instagram, this is the first time the blond beauty has shared a risque picture of herself via her social media accounts.
The question being asked by many now is 'has the selfie craze gone too far'?