The Victoria's Secret model went topless during a recent beach photo shoot and tweeted the nude photo to her 1.6 million followers, reported Us magazine.
"You're the best @chriscolls koraorganicsbymk #purenature #freespirit," Kerr captioned it.
The 29-year-old Australian beauty looked radiant surrounded by foaming waves, but she made sure to keep the modest by blocking out her bare chest.
KORA Organics is a skincare line created by Kerr and dedicated to providing customers with the most natural, nourishing ingredients.
"It's so rejuvenating for the skin and revitalizing. The rosy face oil at night is a must have for me because it puts back all the essential fatty acids back into the skin and it's anti-ageing and super revitalizing," Kerr has said about her cosmetics line.