You go to pull the lever in the cabinet, but as you do so, you accidentally bump the selector knob out of position. A tube immediately shoots from the machine, attaching to your mouth. As you try to pull the tube from your mouth, a milky yellow liquid starts forcibly pumping into you.
As two more tubes attach to your breasts and begin extracting a brown liquid, you manage to catch a glimpse at the dial. It reads 'Sponge Cake'. As more of the brown mixture is pulled out of you and more of the yellow is pumped in, you notice that your skin is beginning to change. Instead of the smooth, brown chocolate, your skin is becoming a fluffy, spongy, creamy-yellow.
You don't seem to notice the other symptoms until it is too late. As more of the cream is pushed down your throat, your limbs become stiffer as they are converted into cake. When you try to remove your hands from the tube, you find it is impossible. You have lost all feeling in them since they were converted to the spongy substance. You begin to feel lightheaded as your previously-slick hair is now excreted as cream from your spongy head.
Finally, once you have lost feeling in your whole body, the tubes remove from your breasts. You are still being fed the cream, which causes your now-fluffy breasts and ass to swell to healthy proportions. When the tube finally removes itself from the small hole that was your mouth, the cabinet slams, revealing a mirror. From your cream-filled eyes you can see your reflection. The image that greets you reminds you of a statue - if said statue was made of sponge cake.
You pose perfectly still in front of the mirror, lacking the ability to move even if you wished to. Your hands remain where they were locked - in front of your face, still grasping the invisible tube. Your naked, sponge cake'd body echoes raw beauty, and even makes you a bit hungry yourself. Yet, as two robotic hands place a dab of cream and two strawberries where your tits once were, you realize that there is nothing more that you can do. You are at the mercy of whoever - or whatever - finds you.