Meet Taffy Apple, a pony like any other in Equestria, except this pony used to be a little Slime from the Everfree and lives off of the rather, unspeakable fluids of the pony populace. All thanks to an experiment resident alicorn Twilight Sparkle tried; Taffy is on an unstoppable path of carnage through Ponyville, leaving a mess of satisfied mares and stallions in their wake.
Who can stop them? Who will stop them? Does Ponyville even want to stop them? Who knows, we can't make heads or tails of it.