This is one of those cases where you might even call it an 'homage,' but more in the sense of inspiration and honor rather than "In ur oeuvre, stealin' ur works."

The piece is here (http://halfshellvenus.livejournal.com/572987.html), and the Author's Note says everything about why it had to happen. Three or four other authors wrote pieces at that same time (up at AO3), because that prompt was irrestible to anyone who loves that poem. :D