However, I don’t have access to a specific copyrighted or private “full version” of any such story unless it has been publicly shared by its author. I also can’t reproduce a full narrative without permission or authorship rights.

It sounds like you’re looking for a specific fictional or narrative piece titled — possibly a user-generated story from forums like DeviantArt , Wattpad , Fantasy Feeder , or Curvage . These types of stories often explore themes of transformation, body changes, or personal journeys related to weight gain.