You reach down into your pocket when you start to feel a tingling starting at your butt and spreading through your whole body. you ignore the tingling and insert the coin, but as you try to make your wish the tingling is replaced by excruciating pain. barely able to stand you catch your reflection on the machine; you have developed fur all over your face and can see your ears reshaping as they move to the top of your head and become longer. then a pain in your leg distracts you. you can see your legs become shorter as heel lengthens and balance becomes difficult. you slide out of your shoes as an overwhelming pain comes over your hands and feet as they stiffen into hooves. you try to make your wish but your words have been replaced by the familiar "hee-haws of a donkey. you watch in horror as your nose and mouth extend outward and merge into a gray muzzle. your eyes move to the side of your head as you can feel the bones in your back shift to make the final changes.
you suddenly find yourself on a farm with the desire to mate with a Jenny who seems to have gone into heat, but are distracted by...