Tyler began to scream, he pleaded for the pains to cease, as when the doctor failed to do anything but smile, the cursing began, dooming a future to being mounted and molested by every stud the farm there had to offer.
"Just think, as how easy it is for me to change your gender if I know how to change you of species. You shall become an animal of form but fully human a rational mind remembering when you were human, male, and had plans of mate with pretty women. As it shall be for you, I deem you to be a Mule, a sterile jennet, feeling lust and having estrus periods. Your lust shall drive you to accept a stallion and feel him rut as try to inseminate a sterile female. Though a stallion may sooth your lusty desires, you cannot bare a foal, the return to feeling estrus comes on you the first full moon of every month you shall remain alive.
As you would dame me, I am damning you to live the life of an equine, a mule, as a horny jennet liking her cunt stuffed filled with as large a horse cock as is available. In time you my learn to like it, somewhat. Yet most of those male human I doom to being as mules tend to feel their life as a living sexual hell, and that for me give me a real thrill!"
Two hours of intense pain and Tyler laid there all sweaty and waiting for the final injections, he horrified at his future.