It is an "interactive story," meaning readers can choose different paths or chapters, leading to various sexual encounters and scenarios.
The story frequently utilizes themes of gender role reversal , dominance and submission , and forced feminization .
While you used the word "essay," search results indicate this title is most strongly associated with rather than a formal academic or literary essay. Context and Themes
It is one of many "community-driven" stories where different authors can contribute chapters to expand the "world". Academic Perspectives
If you are looking for an "essay" in the academic sense regarding these terms, scholars often analyze this type of media through the following lenses: Reconstructing Gender Identity through Dressing