Test subject (STORY)

Disclaimer: I wanted to try an experiment myself, so I asked someone who know nothing about the transformation community to write a cowgirl transformation story.  I gave him some simple notes and instructions, and I think it turned out quite nice! Hope you enjoy!


Riley woke up in the morning and yawned. What a day it was going to be, being a successful businesswoman was a lot harder than most people would imagine. She pushed her sheets down her bed and got up, stretching her arms as she did. She walked over to her mirror and looked vainly at her reflection staring back at her. Standing at 5’5, with long blonde hair, and a trim but firm figure, she was a fair catch for anyone if they could have her. However, that was part of the problem, she had no interest in anyone. She had started her company years ago and that was her life. She didn’t care about family, friends, or relationships. Everything in her life was about her status. As a scientist with her doctorates in genetic biology she used her knowledge of the field to create more….evolved versions of creatures. Horses that could run faster, kangaroos that could jump higher, cows that could produce more milk. But that was just the surface of her studies.

You see, Riley had solved the genetic code. Not for a single species, but for all of them. She had figured out the sequences in animal and human genetics that overlapped and was able to splice in strands of DNA from one to the other while getting to choose exactly which traits should be implanted. She was rich. There was and always has been a global need for quality milk for infants and newborns. No man made milk product has ever been able to replicate the nutrients provided by an actual human female. Over the years a few women have had genetic traits which caused them to produce an overt amount of milk and lactate, but this was extremely rare. With a slight genetic slice from a cow’s milk productivity though, this was possible for anyone. 

Like most curious people though, she wanted to know the extent to which this splicing was possible. Could humans grow more arms? Another head? While slightly disturbing to most people, to someone who loved science, Riley was obsessed with this thought. The government had shot down some of her more “extreme ideas”, condemning them as “insane”. Laws were set in place that basically mandated any genetic modification had to have health or useful benefits to the individual or those around them. Riley was okay with this for a while but soon grew bored of the prison of laws set around her. She continued her research in private and finally figured it out….

Riley got dressed, hopped in her car, and drove to work. She stopped at the guarded gate and flashed her credentials to get inside. Once inside, she descended down to the deepest levels of the laboratory where no one except she had access to. Doctor Riley was adamant about the secrecy of her projects and experiments. She had one other scientist who had never met her, but had given her a wealth of information about genetic research over the years. He was the closest thing Riley had to a “friend” despite them never having met at all. Riley approached the back section of her private lab and pressed a button on the wall, opening a secret door. She walked inside and the door closed behind here. She flicked a switch and a light came on. Before her was a Plexiglas holding cell behind which sat a blonde girl in her younger twenties. She was healthy, young, and the perfect specimen Riley thought to herself. 

“Good morning” Riley said to the girl.

“Wh..why am I here?” The girl responded.

“You’re going to be the future of genetic engineering” Riley quipped back. “When I’m done with you the boundaries of what humans can do to their own genetic code will be limitless.”

“You can’t do that! I don’t consent to any of this!” the girl screamed.

At this point, Riley quit responding to the girl and flicked a switch. A control panel lit up and she started speaking aloud to the girl. “Your breast milk production will be tripled from the average mother, you’ll have the inclination to walk on all fours, your taste buds will crave grass and salt….and maybe I’ll add a tail for fun. Oh, and a lot of the world’s leading scientists will be coming to see it as well” she smirked. 

“You’re sick.” The girl muttered to herself.

“Sorry come again?” Riley glimpsed over at the prison cell from her control panel, but something was wrong. The girl was gone. Panic suddenly rose in her chest, what just happened? Where did the girl go? There was no way to escape that cell, it was literally impossible. And just like that the girl appeared in front of Riley.

“Hello dear” The girl said.

“Ho…how did you escape?” Riley asked in astonishment.

“I’m a witch, and you have overstepped your bounds. You are about to cross lines which should never be crossed. All of creation and the natural order screams at your so called ‘science’” The witch snapped her fingers and Riley felt something wrong with her throat. She grabbed her throat with a hand and went to speak, but she couldn’t. She wanted to ask what was wrong but nothing came out. “Just for fun I made you a mute” the witch said “you’ll never utter another sound again for as long as you live, which will make this next part even better. I can imagine you’re wondering what’s going on but no worries, you’ll see soon enough.”

With that, the witch grabbed Riley and drug her to the cell, Riley struggled but the witch’s strength wasn’t natural. She could do nothing to stop her fate. “There we go, can’t have people recognizing you can we?” The witch laughed and walked over to the phone. Riley listened intently to anything she could hear. The witch picked up the phone and dialed Riley’s head scientist. “Hello Doctor Nathan? Yes It’s me Doctor Riley. I want you to come to the lab and carry out the procedure we talked about. I left instructions on the control panel for what I want you to do. And by the way, the test subject is being less than cooperative. Yes, I’m sorry you’ll still never have met me, but I figure with all the help you’ve given me over the years you’ll be thrilled to get to flip the switch on this experiment. Yes, indeed. Goodbye.” The witch snapped and Riley’s clothes disappeared, every single piece of clothing was gone. Riley shrieked, or at least she tried to. She covered her 32b breasts and her bush. She’d never felt the need to shave nor really put much thought into her bust size since she had no interest in relationships, but being fully exposed to anyone was embarrassing, even in private. 

As she hung up the phone she laughed. “At least now you’ll get to see the fruits of your labor…doctor.” And with that Riley heard the woman leave her laboratory. Riley pounded on the glass trying to escape, albeit she couldn’t see. “Okay this won’t be too bad, surely the doctor will recognize me and this mess will be cleared up. Wait, we’ve never met! He’s never even seen my face!” she started to panic. Within ten minutes, she heard her lab door open again. Riley pounded on the glass and tried to scream but no sound came out. She saw who she assumed to be Professor Nathan walk in and look her direction. “What a perfect specimen he mused.” The professor walked over to the control panel and his eyes lit up like a Christmas tree. “This is beyond anything I would have ever imagined. It’s a shame Riley won’t be here to observe this with me.” 

And with that, he flipped a switch. Riley screamed in rage and pounded as hard as she could on the glass, trying to signal to the professor that she was indeed Riley. But what was the point, he had no idea who she was. Within seconds, four mechanical arms came out of the walls around the cell and grabbed Riley by her wrists and ankles. She struggled against them but their mechanical joints had no sympathy for what was about to happen. They pulled her away from the glass and elevated her into the air, pulling her limbs wide apart. Another mechanical arm with a needle came out of the wall and poked her in the butt, injecting her with a massively potent formula that she herself had created. It only took a second for the chemical to start working. 

She felt strange as her body began tingling. She knew something was wrong as the chemical soup started traveling throughout her body, her immune system panicking at the foreign substance trying to overwrite its source code. But this was to no avail, the formula was perfect, it was engineered to be. Riley looked down at herself in panic, not knowing what had been programmed. The first thing she noticed was her breasts, while smaller b cups at first, they started to swell. They were soon c cups, then d cups, then double DDs. She felt the weight of them pulling down on her chest. When were they going to stop! She struggled against her mechanical captor trying to break free. She could reprogram it! She still knew the formulas, anything that happened to her could be undone if she had time. Her breasts continued to swell, they were the size of cantaloupes now and weren’t stopping. They were pulling heavily on her chest but the machine was unwavered by the weight. Her nipples began to point out as the now massive breasts grew even larger. They started to slow down as they reached the size of watermelons, she could feel the milk inside sloshing around. Her breasts looked ridiculous on her 5’5 frame.

Once they finally stopped, the machines grip let go of her and Riley fell to the ground. She struggled against the weight of them as each of her breasts must have now weighed at least 10 pounds each and held at least a gallon of milk per breast. She struggled up to her knees and her hands but the transformation wasn’t complete yet, in fact it had barely started. She felt something wrong near her lower rib cage. She felt there with her hands and she shrieked. There was something growing, like breasts, but she already had them so what was happening. Unfortunately for her, her hunch was right and her body was producing another set of breasts in order to produce more milk. They started out small, as if her body was going through puberty, but within minutes they were already the size of grapefruits. She felt clung onto them with her hands praying it would stop but it didn’t. They continued to grow until they were also the same size as her now swollen tits. She had the equivalent of 40 pounds of milk on her front, it was like carrying a sandbag. 

In the midst of her horror she heard a mechanical voice come from the speaker in the room. “Breast augmentation complete, initiating safety procedures.” Safety procedures? What safety procedures. As if reading the girl’s expression the professor chimed in. “With all the added weight on your chest, it’s actually unsafe for you to stand upright, if you fell you could be injured badly.” She was still confused until she realized that her hands felt strange. She held them up to her face and her fingers started to what could only be described as “melt together”. Her eyes grew wide as her thumb and first two fingers melded together and her last two did the same. Right before her very eyes she saw them start to shorten and harden as they turned to hoofs. 

She felt a tingling in her feet and the same started to happen, her feet dissolved away into hooves just as her hands had. She stumbled awkwardly trying to stand up but quickly fell back to her knees. The same way that people without toes can hardly walk is the exact same thing that happened to her in an instant. Without any kind of nerve sensitivity in her feet, she couldn’t stand on her rear legs at all. She tried to navigate clumsily around as she realized the worst part. She couldn’t change herself back, without working fingers or the ability to walk she would never be able to work a computer, much less without her voice convince anyone of who she actually was. Riley felt something strange from behind her, something was tickling her tight asshole. She tried to look behind her but couldn’t see anything. She felt something furry and realized this was something she had actually programmed for her poor victim. A tail started growing just above her sphincter and the hairs were tickling her. 

Her head began throbbing as what she could only imagine were horns started sprouting from her head. They were small to fit her though, nice small horns protruding from both sides of her forehead. Riley began to cry, she couldn’t believe this was happening. She didn’t even want to know what she looked like. Before she had time to truly wonder, the mechanical arms came back and picked her back off the ground. Another needle was pressed into her hip filling her with more chemicals. She struggled as much as she was able but any attempt at escape was useless. She felt the fluid spreading throughout her body then she blushed. She felt her nipples changing, she wasn’t sure how but they were becoming sensitive, very sensitive. The professor chimed in “That was something I hadn’t thought of. Doctor Riley had blueprints to reconfigure a woman’s nipples to have the same cellular structure as that of a clitoris. The sensation of being milked would be beyond imagination. Also, cow’s have to be pregnant in order to produce milk, but for ethical reasons we decided to avoid that.” How ironic the word “ethical” sounded right now to Riley, but the professor continued. “Your reproductive system has been set to think that it’s in a constant state of pregnancy, you’ll produce over a gallon of milk a day. If you don’t get milked, your body will grow hot. Your nervous system has been reconfigured so that it thinks it’s being edged as milk builds up, it will literally feel like you’re on the edge of an orgasm if you’re not milked at least once a day. We won’t have to force you to be milked, you’ll literally beg for it.”

Riley struggled as the machine again let her down. She stumbled around the room on all fours, unable to find her center of balance. The mix of the enormous weight on her chest as well as her no longer having limbs she was accustomed to was too much. And the doctor was right, she could feel the pressure building in her chest. At that moment she looked at the door and in walked the witch. She looked at the witch with a look hoping for pity but the witch gave her none. 

“You must be doctor Riley” the professor said. 

“I am indeed. I see you got my message?” The witch replied.

“The experiment has been more than successful, it’s amazing. She just finished her transformation, well…except that” As he spoke short soft hair grew all around the body of Riley, her skin that she had carefully maintained was gone in an instant. 

”It looks like she needs to be milked. Does the cow want her tits milked now?” The witch laughed at Riley.

Riley shook her head in defiance but her body was growing hot, her whole body started to shake as she felt what would normally have been described as an arousal hit her wave after wave. She started to ache, her entire body craved to be milked like the cow she now was. No! She couldn’t degrade herself like that, she wouldn’t give the witch the satisfaction of breaking her, she had to find a way to revert herself back. She designed this program! But…it was driving her insane, her breasts continued to swell, like balloons that needed to be popped. She turned beet red as she felt herself growing wet with arousal. She needed this, she had to. And as quickly as she said no, she said yes. She nodded vigorously. Begging with her eyes for her large breasts to be milked. She needed the pressure relieved. 

The witch smiled with triumph and pressed a button on the dash. The mechanical arms returned, with soft synthetic gloves on them. They moved towards her swollen breasts and for once, Riley looked on in anticipation. She accepted her fate and the cruel irony that life had dealt her. The mechanical hand did nothing more than touch Riley’s nipple which caused her to have the most intense orgasm she’d ever experienced in her life. Her breasts started lactating milk out all over the floor and she writhed on the ground in sheer pleasure, her whole body shaking as she unashamedly came over and over again from her nipple being touched. 

“I’d say the experiment was a success professor” the witch laughed as she left the lab.