You still were not taking this seriously. Surely this had to be some sort of joke, yet you could not deny that you were morbidly curious; besides that, there was something about it all that you found perversely appealing. The idea of being joined with another creature, particularly in such an intimate way, was interesting. Half way down the list you noticed that horses were an available option for a suitable host. There was a certain majesty to horses that you had always appreciated. It went beyond their powerful forms or the way they gracefully ran across the fields in your hometown, and bordered on taboo. Not that it mattered, this was all fake.
When you clicked on the option you were surprised when a drop down menu opened up. There was a variety of different species of horses suddenly available to you with accompanying photos for each breed. Everything from thoroughbreds to drafts and everything in between. You looked them over and clicked on American standard-bred. An image of a large mare with a glossy chocolate brown coat, black mane, tail, and stockings on all four legs appeared. The female horse appeared to be standing in a grassy fenced in field with part of a building-a house perhaps-in the background. Another message appeared just below the picture that read "FINALIZE SELECTION?" There was a button below that which read “CONFIRM.” You took a moment to review your specifications. You shook your head and laughed at the ludicrous notion before clicking on the confirmation button.
You suddenly felt a sharp pain in your gut. You groaned as you clutched at your stomach with a grimace. The pain lasted for only a second, but then dizziness set in; you began to feel lightheaded and nauseous as though you were about to vomit. Fortunately after a few minutes the odd sensations subsided. You breathed a relieved sigh.
“What was that all about?” You thought.
Shaking it off you rose up from the machine; you glanced out a nearby window and noticed that the rain had stopped. You exited the sex shop-wondering what was the point of that machine-and decided to continue your urban exploration of the city you would be living in for the foreseeable future.
You returned to your dorm later in the day where not much happened out of the ordinary. The events of the strange machine and the sex shop long since left your mind. Evening came and you decided to turn in early feeling especially tired. As you fell into bed you noted that it had been a good day.
You awakened sometime later dazed and somewhere other than your dorm room. You attempted to sit up only to realize that you were suspended upside down and dangling above a grassy floor. You also noticed two brown furry legs with black markings that ended in similarly colored hooves. Your clothes were in a heap beneath you with a steaming pile of something brown and odorous deposited on top. You quickly came to know that you were looking at a fresh pile of some creature’s excrement. You uttered a cry of disgust and raised you arms to shield your face only to discover that your fingers had fused together and formed a smooth nub, your skin turning a mottled black. Horrified you screamed at the sight which was answered by a distinct, breathy, bestial sound. You looked back over your shoulder only to be met with the sight of a horse’s rump, Its black tail raised in the air as the beast passed gas. No doubt this was the origin of the hot mound of horse poop, but more alarming than that was the fact that you were currently lodged up to your waist into the animal’s vulva! You screamed in terror and flail your arms as you tried to free yourself from the equine genitalia, but the female horse’s only response was to squeal and snort. Without warning you barfed up a clear, viscous fluid. You were stunned by the sudden action and could not fail to miss that the pungent tasting fluid you choked up smelled of sex. That is when you remembered the sex shop and the strange machine inside. You also saw that the horse your were dangling out of was the same brown one in the photo.There was a sudden tug as the mare’s labia clenched around you and you were drawn upward. It was as though the proverbial pen dropped and everything clicked. You were not merely stuck in the horse’s vulva; you were becoming her vulva, and you had just spat up her vaginal fluid!
You could not believe that the machine was genuine. If you had known you never would have touched the thing. You do not know how you got from your bed to the undisclosed field in the photo, but you had managed to sleep through much of your transformation. Currently you were a naked, pink fleshy mass protruding from the mare’s hindquarters. The outer folds of the creature’s vulva fused around your hips. Your skin turned black and leathery to match the flesh of the equine’s vulva. This shiny, black coloration grew in large blots over your body, with the blots becoming smaller and less uniform the further they were from the horse, while your entire lower torso was solid black.
Your arms have been reduced to limp hanging stumps as they rapidly start to dwindle away and meld into your torso. You assume something similar has happened to your legs as you can not feel them. Your hair had fallen out leaving your entire grotesque, quickly shrinking form bald save for the thin coat of short brown hairs sprouting over your body. These appeared to be the very same as the fur that covered the horse that was unknowingly absorbing you. With unsettling, wet sounds your collapsing pelvis and rear were suddenly sucked inside the horse. Your skeletal structure softening as your bones were converted into additional muscle and tissue.
The mare began to walk, leaving behind her recent bowel movement, with you flopping helplessly behind her. The creature seemingly un-bothered by your presence as she began to graze on some grass. You were worked up into a panic. How could you have been so stupid? Why did you jeopardize your well being like this over a perverted, sex machine?
You were completely helpless as you were gradually were drawn up into the horse's rear. Your teeth receded into your gums, leaving your now soft toothless mouth only capable of making wet, disgusting smacking sounds. You began to salivate uncontrollably, only it was not saliva dripping from you lips it was female lubricant. It was all so surreal. With terrible certainty you knew you were rapidly becoming a mare's genitalia, perhaps her uterus as well. The conversion process progressed with startling speed as the leathery black skin of the horse vulva completely decomposed your form. Your arms were gone, your ears were gone, and your head had fused with your torso as you quickly grew smaller and raised further into the air. With a final inward tug your head was pulled up and sank between the mare's large haunches as your chest was pulled between her legs and melted into its lower abdomen, merging with the large animal’s small udder and teats. Your lips involuntarily puckered, then pulled vertically into a perfect slit, and started to absorb your nose. Your face warped as your nose shrank. It moved south, slipping beneath the wet folds at the tip of her mouth and the mare’s vulva, fusing with her clitoris.
Your tongue wagged for the last few times before it dissolves, your taste buds migrating to the soft pink interior walls of the animal’s vulval vestibule and vagina while the rest of the tongue liquefied and mixed with the sexual fluids you were presently salivating. As the clear fluid, pooled and dripped from your black lips, you could do nothing more but watch and listen as it splattered on the grassy ground below. Never again would you utter a word. The tiny wet splats as your liquefied tongue dribbled from your lips and dropped to the ground would be the last sound it ever made. In vain you tried to scream on last time as the final changes took place, your lips-the mare’s outer folds- pulsed and twitched before they settled down into their new form and function. The mare’s sexual fluid dripping from them, the pheromone laden flavor filling what now served as your mouth.
The only human features remaining, were two small, terrified eyes just below the mare’s large, black, puckered anus. They appeared as though tiny wrinkles of skin had been arranged to resemble human eyes, or possibly even tattoos now flanking the horse's Cleft of Venus.
What little else remained that was still remotely human was hidden away inside the female horse, warping and being integrated into its anatomy. Your organs were either broken down into superfluous tissue or re-purposed. Your lungs disappeared as your respiratory and circulatory systems were replaced by the the horse’s. Oxygen and blood being supplied by her body.
Your core consisted of the animal’s cervix and Fallopian tubes. Your penis disintegrated as your testicles shriveled to near nothingness before they were assimilated, and consumed by the mare’s own ovaries. This was particularly painful until your nerves and pain receptors melded with and were replaced by the animal’s. Your kidneys and bladder were merged into those belonging to the mare as not only were you now the horse's reproductive system, but also her urinary tract. The creature’s urethra located just above her vaginal opening now doubling as your throat. Your very DNA was eviscerated as it intertwined with the DNA of the mare. The horse would not be granted any human characteristics however. The mare would still be 99.99 percent female equine. The remaining .01 that was human male would be carried as random fragments of genetic code.
You looked on in silent horror. No one knew where you were or what just happened. There was no that could help you. This was a fate far worse than death. You no longer had a brain yet you could think and were very aware of your current plight. You had been utterly dominated by this female animal and she did not even notice. Your very life was taken away as you ceased to exist as a man and were nearly erased. You now were a very intimate part of a large female horse. The mare lifted her head as she finished grazing. You watched the world outside the horse shift around as the creature you had bonded to began to move on unaware of your presence-its simple mind unable to truly comprehend what had transpired. The horse finally lowered her tail, it descended-blocking everything beyond from view like a curtain falling on your previous life as the mare become your entire existence.