https://www.hentai-foundry.com/pictures/user/Mophingu

Just back to finish this one!

.:1:.
As a doctor in zoology, Bella had spent years studying the behavior of various members of the bovid family of animals trying to learn what made them so intelligent. Living alone in the mountains on her small ranch allowed her to study peacefully without the interruption of others. She had observed various forms of what appeared to be communication between her horses and cattle, but no matter how hard she tried, she couldn't break the code to what they were saying. Eventually, Bella began developing a special serum that might give her further insight into their mental thought processes and mannerisms. She'd been testing it on herself in small doses, making sure it was fully safe, but so far its only effects were quick flashes of heat through her but no breakthroughs yet.

Eventually, Bella's patience got the best of her and with her most recent version of the serum, she decided it was time for a full dose. She felt confident she was on to something. What form that something would take, she was still unsure, but she was eager to find out. Having let all her animals out of the barn and into the pasture for the day, Bella walked into the barn hoping the environment would help stimulate her experiment. It was a cooler day and she dressed comfortably and light, hoping it would counter any warming effects as she knew the tiny doses tended to cause flashes of heat to flood through her. She looked down at the vial of glowing purple liquid and took a deep breath. She was shaking with excitement, but a bit nervous as well, even though it had previously proven to be safe in small doses with no after affects. With one last confidence building exhalation, Bella uncorked the vial, and downed the whole grape flavored serum in one go.

.:2:.
Just after Bella finished the serum, the familiar heat flooded through her. However, as this was a full dosage, the experience this time was much more intense than she expected. Instantly she started to sweat and every inch of her body felt like it was radiating an intense warmth. Bella decided to remove the small amount of clothing she was wearing to let the cool breeze bring down her body temperature as much as possible and sat down on some nearby bales of hay. Instead of dissipating, the warmth radiating from her body started turning to pleasure. It was as if the feeling of pleasuring herself was radiating from every inch of her.

Bella's heavy breathing echoed through the barn as her pussy lips became puffy, sensitive, and soon, dripping wet. The pleasure came in waves, with each wave getting more and more intense. It was almost as if her body was building toward and orgasm the likes of which she'd never experienced. Each wave brought about strange and subtle changes that she'd yet to experience from her previous tests either. Her breasts felt warm to the touch and oddly a bit heavier than she remembered and her nipples were enlarged and incredibly sensitive as well. With each new wave of pleasure, it felt as though her body was growing and changing and with each wave so did her pleasure increase as well. Bella let out a loud moan as the next wave rushed through her, savoring the subtle expansion and change of her body. Panting from pleasure and quivering with excitement, she couldn't wait for the next wave to begin.

.:3:.
The pleasures surging through Bella continued to build with each passing moment, each wave growing stronger than the last. Her experiment had gotten a bit out of control but, as good as it felt, it didn't really matter to her. She hadn't made a reversal serum to stop its progress, so she was already in this for the long haul. Standing up, Bella made her way across the stall before having to stop and hold on to some equipment running across the ceiling as another waved began to build.

Breathing heavily, Bella's legs quivered and shook from delight as she let out another moan. She felt as her breasts and thighs both swelled in size, the sensation was practically orgasmic, but she wasn't able to crest into climax. It was as if the changes from the serum were edging her in the most extreme way. She could also feel other changes on her body like an odd pressure around her tailbone and two on either side of her head as well as a tingling sensation in her ears. She was now practically oozing from between her legs, her mind, flooded with the thoughts of being pleasured. Bella couldn't wait for what was to come next as the feelings continued to grow.

.:4:.
Bella made her way back over to the bales of hay by the window, her legs barley able to hold her up. Another wave came, making her feet and legs stretch and grow. She stumbled, but caught herself on a bale, her legs quivering and shaking. Soon her chest and ass followed suit, growing even larger as well. Her breasts felt so heavy and full that the pressure in them was causing milk to leak and spray from her nipples, with each wave only making it more intense. Panting from the pleasures coursing though her, she could still feel the pressure pushing out from her tailbone and something now swaying around. The two bumps on Bella's head had turned to small horns and her ears continued to grow. How much more of this was left before the serum's changes where complete? Having never tested this much before, she had no clue, but if the pleasurable waves of transformation continued, Bella didn't want it to end any time soon.

.:5:. (On the way)
Bella's body slowly started to reach an equilibrium where she could think and move so she took a second to observe herself. Both her breasts and hips and grown substantially while her ears now resembled bovine ears and two small horns protruded from her head. Her genitalia had also changed considerably, both her lips and anus were much puffier than before and desperately sensitive. Her feet had also taken on a more hoof like appearance, but appeared to be about three quarters bovine and one quarter human still. Bella ran her hands over her body and new curves thinking about what to do next. The only think she kept coming back to was wanting more. More changes, more pleasure, and more of the serum. Having brought two additional flasks out of her serum just in case the original dose had no effect, Bella collected the containers. Knowing just how intense her body would warm up, she headed over to the clean water drinking trough of the barn where fresh, cool water continuously flowed in from a nearby stream. Setting the flasks of serum beside her, Bella lowered herself into the cool flowing water.

Taking a deep breath, she grabbed a flask. "Just a small drink," she said to herself, "Don't want to overdue it." Bella started to sip the serum, but as it passed over her tongue the pleasures quickly came back and her mind forgot about moderation. Before she knew it, she'd downed the whole flask, which was about ten times the original dosage. Unable to believe what she'd just done; it was barely seconds before her whole body reacted to the amount of serum she had just consumed. Her thighs and breasts expanded at an incredible rate with her breasts rapidly filling with milk and starting to leak out. She gasped at the rush of pleasures flooding through her as her body started to changing again. The pressure in her breasts was so intense that she needed to help empty them. Taking massive handfuls of both, she squeezed. The incredible feeling elicited a blissful moan and caused jets of milk to spray out of her massive nipples. Panting and trying to catch her breath, Bella looked down at the second flask just as another transformational wave started to build and she felt her body continue to stretch and grow. Grasping it in her hand, she stared at the glowing purple liquid. If she did this, she was all in and there was no going back. With the pleasurable feeling radiating through her body like nothing else she'd ever experienced, Bella made her choice, bringing the flask with remaining serum to her lips and downing every last drop.

.:6:.
The 20x dosage of serum surged through Bella's body which jumped right past the flood of head and barreled straight into pure bliss. Her body swelled and grew with her breasts and hips expanding at an unbelievable rate. Each pulse of growth was followed by a feeling that could only be described as the most edgingly intense pleasure. With milk practically spraying from her breasts, Bella struggled to stand and make her way over to the milking stalls. Both breasts needed to be emptied, but with no one else around to help, she'd have to rely on the barns milking machinery.

As she arrived at the milking cups, she could feel her whole body tingling and buzzing as the physical changes continued forward. As she touched her face, it felt as though her tingling nose and mouth were pushing forward. Bella also now sported a healthy, thick tail that she could sway back and forth. As she moved it around, she lustfully dreamed of someone grabbing hold of its base for grip during, particular activities. Soon her skin developed various dark spots while the rest started to pale in comparison. With her breasts heavily hanging, plump and full and the pumping machine on, Bella grabbed the first milking cup and prepared to attach it to herself.

.:7:.
With a satisfying suction sound, Bella placed the two milking cups on to her nipples letting the light pull of suction hold them on. She could feel another wave of transformation building so her timing couldn't have been better to help empty her incredibly full breasts. Bella had set the machine to a cyclic suction that moved between a light consistent pull to a heavy suction and prepared herself.

Bella grabbed the wooden pole the miking hoses ran up to brace herself. Even though she was constantly quivering from pleasure, her new, stronger legs had yet to buckle, even under her expanded size. Hoping the milking machine would help slow her changes down, Bella's ears perked up when she heard its motors begin to pick up. With in seconds the suction reached her nipples and started to increase. Bella's panting grew louder as her massive nipples were pulled harder and harder before finally her milk came rushing out. She gasped as a pleasurable shiver ran through her, head to toe. The more milk the machine sucked out, the better it felt. As the machines suction continue to increase, so did the pleasures radiating through her, intensifying her transformation. Her body stretched and grew as the suction built and the edging pleasures were indescribable. Bella panted and shook from pure bliss as the milking machine continued to work, putting her closer and closer to the peak of an orgasm. Bella was begging, pleading to reach her orgasm as the transformation seemed to hold her right on the edge. "More please, More!" she lustfully begged and just as she felt it was going to happen, the milking machine reached the end of its cycle and the suction dropped. Breathing heavily, with her whole body quivering, Bella worked to catch her breath, eagerly waiting for the next milking cycle to being.

.:8:.
It wasn't long before the next suction cycle of the milking machine began. Bella's anticipation surprised even her as the only two desires now filling her head were being filled by a massive shaft and being milked until her breasts ran dry. All prior thoughts of stopping the process had drifted away with the first cycle of her milking. As the machines motors picked up once more, Bella grabbed her massive breast with one arm to squeeze while the other helped hold her up.

The suction on her breasts grew stronger and so did the flow of milk from her. It was unbelievable how much her body was producing and it didn't seem to be slowing at all. As the suction grew, Bella's transformation surged forward. Quivering from delight, each second of milking that passed caused her hips and breasts to grow more. Her moaning and heavy breaths echoed through the barn each coinciding with another wave of growth and changes. Looking back, she saw how massive her hips had grown and she could feel how dripping wet she was between her legs. Thoughts of being rammed over and over from behind filled her head as her body's pleasures swelled. Was this the time? Would she finally reach the peak of her transformation and crest into the coveted orgasm she so desired? Each passing second saw her transformation progressing faster and faster with the pleasures right along with it. She was right there, hovering at the peak pleasure, quivering and shaking wanting more and more as the milking machine struggled to keep up with her ever increasing milk supply.

.:9:.
Suction continued to build in the milking cups as they pulled more and more milk from Bella's breasts. Each passing second felt better than the last as her body was humming with pure pleasures and she quivered and shook from her transformative experience. Even though the milking machine was working as fast as it could, it wasn't long before it started to fail to keep up with Bella's massive output and the glass cups started to fill. Even though she thought the milking would help slow her transformation, it seemed to have done exactly the opposite.

Bella's body continued to expand as she reached up to hang her arms from the cow tie off chains above. Her breasts hung heavily from her chest, feeling felt fuller than ever and her colors darkened with her body's changes. Finally, the milking machine reached the max it could perform at, but Bella's body wasn't stopping. The cups filled completely with milk as it started to spray out from the seal around her nipples. She was so close to orgasm that it was practically driving her mad. Thoughts of being pleasured from every imaginable position flooded through her mind as her eyes rolled back, tongue hung out and she continued moaning from delight. Higher and higher her pleasure ceiling went before finally she felt its peak. A quick gasp filled her lungs with air before her whole body shuddered as an orgasm ripped through her from head to tail. Her moans echoed through the barn as the orgasm session that usually lasts several seconds at most, continued to ravage her body at its full intensity for several minutes. Her breasts pumped out so much milk that the milking cups shot off and her nipples continued to spray milk through the whole orgasmic experience. Finally, she started to calm her breaths and her growth began slowing. Bella's body was coming to the end of its long transformation.

.:10:.
As Bella's orgasms slowed, she lifted her new body with surprising ease and began to expect it. She had to be packed with an unbelievable amount of muscle to lift so much weight without any strain, but her new curves hid any sign of it. She looked down, running her hands over her curvy hips up to her massive, still slightly tender breasts, as a light shudder of excitement could be heard from her breath as she exhaled. Her tail swished playfully back and forth as she continued looking over her new self.
Her serum had been a MASSIVE success, all be it, she wasn't any more sure about bovine thought processes or mannerisms, but she certainly enjoyed being milked! Bella had a lot of work to do to record her discoveries. Maybe she could sell the serum or design it for other animal types? As more thoughts of science and marketing rushed to her, she realized her body's desires were building up again. Milk leaked from her nipples and she was so wet she was dripping. Playfully biting her lip, she imagined her pleasurable session soon to come. If only she had someone to help her with that from all different types of positions. "Maybe someday I'll find someone to sample my serum," she said with a smile, before heading inside.

Pretty good for the first 5 pics, then she turns more animal than human which is a turn off. Finding the right balance is tough but here it ends up being too much. That type of transformation is also much hotter when there is a male human-bull hybrid to help the woman along with some good bovine bonking.

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It's just not a cow, without an udder :(

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@SeishouUrufu

Some people actually prefer their cowgirls without an udder.

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@Malkovik

Nah, finding the right balance is easy. It's just that the 'right balance' differs between people and the people who get a say on how far to go are the artist and the person paying the artist. Since we're not even giving the artist gallery hits, much less money, we don't get a say.

Of course, one of the advantages of transformation sequences like this is that you can stop when you find the change to be just right.

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