Bare bottoms up! Heidi Klum tweets cheeky photo of her pert posterior

She may juggle a successful career with being a mother-of-four, but even Heidi Klum's attention can lapse occasionally.
The 40-year-old German-born supermodel forgot to apply the proper amount of sun cream while on holiday in the Bahamas and ended up with a rather painful looking burn down her lower back.
Eager to share her pain, Heidi posted a cheeky photograph of her bare behind on Twitter to show the tan line alongside the caption 'Ouch.'See photo after the jump