Ivy's nerdy sister 'Kitty' has been spying on Ivy for some months and is mega-curious about what the Hex would feel like. When Ivy goes on vacation, the stepbrother thinks he is safe for a bit, because the Hex can't activate without proximity between those involved in it. Cunning Kitty however, has taken some of Ivy's hair from her brush and made a mild poly-juice potion designed to con the Hex into thinking that SHE is Ivy. Her plan not only works, making Kitty the Hex's recipient, but she also discovers the added bonus that she can now actually activate the Hex at will. Their stepbrother may not be getting that month of peace and relaxation he was hoping for, and what a surprise he'll get when he lands on Kitty's clit and realises the 'illegal' mischief she's been up to. Once Kitty has him where she wants him, she threatens him with dire consequences if he dares breathe a word to Ivy about what she's done in her absence. Kitty reads through her stepbrother's texts and learns that he HAS contacted Ivy about what she's done regarding the Hex. It's backfired on him big-time however, because rather than being annoyed, Ivy has just texted him back saying “You'd better do what she tells you then huh...” Kitty is amused by this, and what appears to be her sister's blessing on her mischief. However she is utterly livid that he has contacted Ivy in spite of her warnings to him. Kitty is so furious that she invokes the Hex right there and then and angrily sentences her stepbrother to a super-extended stay on her clit. But she believes a far more sinister punishment is now called for and being the family nerd, she knows about many long forgotten spells that have fallen out of use among modern Witches. Perhaps now would be a good time to invoke one of them? Kitty's always been grossly underestimated as a young Witch, and her nerdy appearance belies her tremendous magical talents. Not only has she hotwired the Hex meant for Ivy with a poly-juice potion, but she's also been researching ancient spells which have long been banned by the Ministry. One such spell turns it's victim into a microscopic cum-cleaner, and was used by Witches in the dark ages on clerics who were responsible for the 'burnings.' After an evening out fucking her beau, Kitty returns home and decides to put her clit-captive to work through the night as she zzz's. She wants her cum-filled pussy spotless when she wakes up in the morning so it'll mean a lengthy nightshift for the microscopic little guy. She provides him with a little wand and an accompanying spell, which at best, can vanqish 100 thousand sperms in ten seconds, so if he works really hard, he'll have about 6 hours to remove the 200 million still inside her by Kitty's estimation, so there'll be no time for any slacking in there. Woe betide him if he fails this task. Kitty has turned her microscopic stepbrother into a Yoni slave, just like the more vengeful ancient Witches and hookers of old used to do to members of the puritanical clergy before the practice was eventually banned. “To those shrunken males who had acted so violently against the ancient 'magical' sisterhood, vaginas would become their vaulted cathedrals, and clitorises were the new altars they would be pushed to prostrate themselves upon. It would start with service, and end with worship. They would become priests of Yoni, and would live lives unseen within the inner sanctuaries of their new Goddess, forgotten by the world they once knew..” At least that's what the book Kitty had borrowed off her and Ivy's aunt had said on the subject, and Kitty is an exceptionally smart and studious Witch, who has now found an ideal Guinea Pig to practice some ancient magic upon.