The worlds of Equestria and Earth have merged into one world, the Humans mostly stays with their own race leaving the ponies alone.
The ponies while they want to learn about the Humans also chose to leave them alone, however, some Humans do decide to cross over due to curiosity or wanting a change in their lives.

This is the story of one such person who decided to live in the Equestrian part of the world to fulfil his dreams of making clothes, he knew his chances of meeting the elements of harmony were slim due to their disappearance years ago.
The closest he'll get to them is his new order of Mannequins that looks like them, little did he know of the secrets in his mannequins or the mistake that occurred years ago.

Chapter 2 and 4 contains Agalmatophilia (sex with dolls/mannequins) at least until the curse starts to wear off