Kelly Brook has bared all in her sauciest ever advertisement - for a pair of training shoes.
And the model's sensational curves are sure to send fellas running for a cold shower, reports the Sun.
Kelly, 30 - who have just split from rugby hunk Danny Cipriani - stripped off for billboard ads to boost Reebok EasyTones.
Recently she romped naked, save for flippers, in a lesbian sex scene for upcoming film Piranha 3D.