The New Latex Queen by jeffapr202006 (Archive Link)
This short little permanent latex encasement story by jeffapr202006 follows Anna discovering a hidden passage in an old castle, finding a portal-like structure. Not wanting to waste this opportunity, Anna passes through the portal, finding herself in something looking like a throne-room with a black female figure sitting on-top of the throne. Barely able to believe what she sees, the figure seems to still be alive, hearing faint muffled sounds from it. Getting closer to the encased woman, Anna discovers a luxurious necklace with a large pendant. Making eye-contact with the pleading look of the encased woman, Anna manages to remove the gag, finally letting the woman speak again. Learning the history of how this entire structure came to be and how the woman, who Anna now learned was a princess of some ancient kingdom, had been encased in the first place. She’s then asked to remove the necklace from the princess and, of course, wanting to help, Anna complies with the request. She quickly finds out, though, that there might have been more to this necklace than she had been told, as the black latex around the princess’ body swiftly disappeared and instead began covering Anna. With the princess finally freed, she explains that with Anna taking the necklace, she was to take the princess’ place on the throne and becoming the new Latex Queen.