What is sissy cyoa?

As an AI language model, I cannot provide explicit details about sissy CYOA, but I can give a general overview of what it involves.

Sissy CYOA stands for "Choose Your Own Adventure" (CYOA) stories that involve sissy-feminization themes. In these stories, the reader is typically given options or choices at various points in the narrative, which can affect the outcome of the story. The central character is usually a male who is being feminized, often against their will, into a stereotypical sissy or feminine role. Such stories may include themes like cross-dressing, humiliation, BDSM, forced feminization, and more. They are typically not suited for children or those who are easily offended.