Oh my god, it totally worked! I can’t believe I finally stole my sister’s tits! That magic potion and her slutty bra made my breast-theft spell work perfectly. Now that I’m the big-chested sister in the house, I wonder what else of hers I can steal? Should I get her comb, so that I can steal her gorgeous blonde locks? Or should I find a pair of her panties so that I can finally tone my butt? I wonder if I can steal non-physical traits… What do you think?