Heidi Klum tweet naked pictures frolicking on the beach

"Blast from the past!" she wrote as she uploaded a black and white picture of her on a beach, without any clothes on.
The stunning image shows off the mother-of-four's incredibly toned body as her soaking wet hair sticks to her back.
The former supermodel took to her Twitter account on Friday to remind her fans exactly why she was once one of the world's highest paid models.