You've gone to visit the witch, Ivy Davenport, for some help with your weight gain. You seek a weight gain potion to help speed up your gaining and to turn you into the fat blob of your fantasies. Ivy mixes you up a potion and instructs you to consume it. As soon as you've chugged it down, your body begins to change and grow. Soon, you're fat! You're blowing up right before Ivy's very eyes and she loves watching the process. You're getting so fat that you're not going to be able to leave! Ivy will keep you as her little pet, something to practice her potions on. She'll fatten you up more and more and more until the day you finally pop!