Samantha_Snow wrote a kinky little story, expanding the Mrrshan Empress adventures and featuring their character Eva. https://docs.google.com/document/d/1Rj-H_yibnNFsdsAVoIklf9Xn87o9cL9L_vuPXl4iwGc/edit
There is also a story here as a description of the first image https://e621.net/posts/3718867?q=quotermain