CFNM World
Where men learn their place
You get to write about a world where men are required to be naked at all times but women are allowed to remain clothed. You can approach this story in almost any way you want. Perhaps you want men to be nothing more than slaves to women. Maybe men are at a nearly equal standing with them, but still have to be nude.
As for the setting, feel free to get creative there as well. Maybe your story will take place in the “real world.” Maybe it’ll be in a fictional country of your own making. Perhaps your story will take place in a dystopian future, a fantasy world, or on another planet/in space! You could take time to show the fall of men and their right to wear clothing or start right in the middle of the action. As long as there’s plenty of naked men in public, you get to make it whatever you want!