When Luna finds a book that really should've been burned, she uses a spell - And ends up with a massive dick and Anti-Social Personality Disorder. Couple that with a magic herb that makes the user extremely horny, and couple that with Celestia being the closest thing with a pulse, and fun ensues.

Contains poorly justified futa, Princest, rape, more rape, lots of rape, wounding, murder, chaos, using tears and blood as lube, too much cum, and lots and lots of rape. Like seriously, there's a hefty amount of rape.