Slave girl punishment.
The desert kingdom had hundreds of slaves. Discipling them all was the task of the slave drivers, although the sometimes the king and his princes (he had many sons by his multiple wives and concubines) took a personal interest in punishing slave girls.
Prince Alli lusted for a slave girl named Aaliyah, so of course he ordered her to perform sexual favors for him. She was beautiful with firm breasts and a succulent pussy. Prince Ali was expecting a night of ecstasy but instead despite her feminine charms she put in a lackluster performance. It could not possibly be him, Prince Ali concluded. It must be Aaliyah who deliberately insulted him.
He ordered her tied to a post in the sands of the desert. She would spend all day there under the blazing sun with no water. At sundown she was to be untied and taken to the torture chamber where Prince Ali himself would lash her with a plaited leather whip.