You greet your wife saying you have a gift for her, but she's cranky. What is that huge cage doing in the living room? She asks. She said we can't get a pet! Don't tell me you got one without asking me first? She says. You say no, you got me a magic necklace and tell me to put it on. She scorns its simplicity but humours you. She can tell you're horny but she says she's not in the mood. Then she suddenly starts panting--it's working! But she isn't aware of the changes that are beginning. She asks what you're staring at. Then her hair magically turns into pigtails, reminiscent of puppy ears. She pants more, and whines, like she's in heat. She stands up, and her panties disappear. She can't help rubbing her cunt now. She comes to, asks what's going on, but before she knows it, a pink collar appears, and a leash, one by one, the transformation takes place. Your wife isn't a bitch anymore, she's a real BITCH! A horny bitch in heat for you, at last, what you've always wanted. She rubs her pussy, desperate for her bitch cunt to get fucked. When she comes to she's so confused but as the witch promised, it never lasts long, and it seems to deepen in intensity with time. Leather mitts appear on her hands, making them as useless as paws. You tell her to get on all fours to be fucked, and is she ever ready. But you decide to go further. You put her in the kennel and then she really snaps awake somehow, and takes out the gag and one of the mitts. She demands, then begs for release, but she's locked in. You say if she puts in the huge puppy tail buttplug you'll let her out...after you fuck her. You can tell she's outraged but she knows you have the power so she acquiesces. With great difficulty, she puts the huge plug in her tight ass. Then she is your puppy bitch completely, as promised, no shred of humanity left as she is just a puppy in heat, horny for your cock. You fuck her, on all fours, through the cage as she humps you back fiercely, then curls up in her kennel for the night