Kelly Brook - Piranha
Kelly Brook and Riley Steele swimming in a lake completely nude, giving us wonderful views of their naked bodies as they spin around in an underwater dance while wearing nothing but blue flippers. The girls show everything as they twist and turn and swim close enough to kiss as we see them from underwater and through the glass bottom of a boat. Kelly is the one with darker hair. Meanwhile, we also see a bit of Jessica Szohr floating on an inner-tube above them, wearing a bikini. From Piranha (AKA Piranha 3D).