Bar Rafaeli tweets topless pic of herself

Leonardo DiCaprio's former girlfriend had last posted a candid snap of herself during a painful-looking dental examination.u00a0The photograph features the former Sports Illustrated model topless, while submerged in water, with the caption, "Watch your back!"

Picture the supermodel posted. Pic courtesy Bar Refaeli's Twitter account

In the black and white image, Rafaeli can be seen from behind wearing nothing but a checkered string bikini bottom - with visible tan lines - as she coyly holds her triangle top, the Daily Mail reported.

Bar Rafaeli. Pic/Santa Banta

She also posted a mysterious picture of herself with five small children, and wrote: "Can u think of a better day to start the day?"u00a0