The Devil appears to Zahhak in the guise of a cook and introduces him to the hitherto unknown pleasures of eating meat. As a reward, Zahhak allows him to kiss his shoulder.
Project Notes
In most of these pictures, the snakes already appear (so it is not easy to separate the snakes appearing as a separate scene) - I think therefore that the snakes appearing should be part of this scene description. We have no pictures of Iblis actually kissing Zahhak's shoulders.
