There is a story (a fairly short stroke) here on SOL, posted by an author who apparently hasn't logged in for awhile since there are no contact links available, that I have worked over in a local copy.
In this copy I have made minor edits throughout, very slightly modified the first sex scene, added a lengthy scene between the original's second and third (the original fades out here and simply has a humiliated third party listening) and greatly modified the original story's third scene (making it even more humiliating for the third party).
Would it be reasonable to post this as "Original_Title - Redux" or should I keep it to myself? If I do post it, I was planning to fully credit the original author and story for providing most of the words. I know this would be a no-go if we were talking paid publishing, but this is a very different situation.