Once upon a time, Princess Luna created the Tantabus, to punish herself for becoming Nightmare Moon.
A few months later, she created the Incubus, because she was lonely and horny.
Now she finds herself, along with a growing entourage of embarrassed ponies, chasing the Incubus through a variety of debauched and depraved dreams, including those of the mane 6, hoping to catch the rapidly growing sex demon before it escapes into the real world.

See author's notes for chapter-specific tags, but will probably contain: Sex (duh), F/F, F/M, hornjobs, oral (possibly aural as well, but that was a typo), anal, orgies, bondage, spanking, electro-stim/torture, hot wax, public humiliation, masturbation, dubcon/rape, incest, bestiality (ie. pony x non-sapient), futa, foalcon, tentacles, fisting (but with hooves - hoofing?), crotchboobs, impossibly large crotchboobs, and cum inflation. I think that covers it, but I might have missed one or two tags, and I can't promise I'll get around to including all of these. All underage, and/or non-sapient, participants are figments of some other characters dream. (Took out the bit about consent because it's debatable)