As the obese witch's power hits you, your body shifts and you are forced onto all fours. Your body gets a bit smaller but you feel yourself getting slightly chubbier.
You realise what she's done with you as your nose turns upward into a snout and your ears grow floppy. Looking at what used to be your hands comfirms it - they're now trotters. she's turned you into a pig!
The fat witch looks at you and licks her lips. "Yummm, fresh bacon!" she cackles as she rubs her hands. You'd better move if you don't want to be on the menu!