Samus chooses the Cow Species Upgrade

Thinking over the options on the list provided, Samus decided to go with the Cow option for the Species upgrade. Sure, she may loose some of the speed she gained as a horse, but she imagined she would gain the strength of a fully grown bull. Even then, bulls could run decently fast, so with no real downsides coming to mind, Samus believed this to be the right choice.

"Computer, I would like to have the Cow Species Upgrade." Samus said. A moment later a sound resonated from the computer, confirming her choice as a small chip was deposited for her.

Taking the chip, Samus first took a close look at it. The chip was small so as to be able to insert into her current upgrade, and was a plastic white in color. On it was the logo of a cow's head painted in black. Having made her decision, Samus took the chip and inserted it into the upgrade slot of her suit.

Not a moment after inserting the chip, Samus began to feel strange as the upgrade began to take affect and change her body. It started with an unpleasant sensation across her lower horse body, like she was having one large muscle cramp. As this happened, her horse body began to shrink a bit, her legs growing shorter as she lost some height. Her horse body didn't lose any of its muscle however, and as she shortened her body grew outward a bit, becoming somewhat wider and actually heavier as a result.

As more strain was put onto Samus' legs, they began to thicken as well, her once well toned and round ass now filling out as her thighs and ass grew. Samus could feel plenty of muscle rippling through her lower form, but surprisingly she also felt a considerable amount of fat being added as well as her lower half rounded out, becoming soft and jiggly in some places while still having plenty of muscle to support her weight. Her tail changed as well, growing outward as the hair on the end shortened and turned black in color.

After her body finished changing its shape, she watched as her fur's color changed on her new cow body. Originally being blonde, she watched as the majority of it turned white, though a few mottled patches changed black instead. Samus looked at the coloration for a moment, somewhat confused.

"Don't bulls typically have black fur? Right now I look more like a dairy... oooh-." Samus was cut off as a new sensation of growth caught her off guard as a new set of nipples appeared next to her two teats between her legs. They quickly began to fill out, and after they had reached the size as the other two, all four began one continuous growth as they formed together into one large shape. After a few minutes had passed, Samus was left somewhat panting as her new large udder finished growing, hanging underneath her new cow body heavily. Not only that, but Samus could feel an odd sensation within her udder, and she shuddered as she realized that she was probably beginning to produce milk.

Well, at least that's why Samus thought she shuddered. In reality, her upper half was beginning to change slightly as well. Her already large breasts began to grow once more, becoming larger and larger that her suit was straining to keep up with their growth. When they had finished growing, they were almost so large that Samus could barely reach her arms over in front of them. Not only that, but her nipples had grown slightly in length as well, now peaking out through her suit and being clearly obvious to anyone that might look at her.

While her breasts had grown, Samus' ears changed as well. Having once been normal, Samus felt her ears begin to stretch out from either side of her head, until they were large and pointed. Once they had finished growing, Samus felt a tingling sensation, and reaching up to feel what had happened, she realized her larger ears were now covered in fur as well.

Finally, her body became softer as well. Even though her muscles didn't disappear, they were still covered in a nice soft layer of fat as well, just like her lower body.

When Samus looked over in the mirror, she was surprised at the changes that the upgrade had made. Instead of the bull she had been expecting, she had instead become a large cow-taur, and a dairy cow at that. Her lower body was large, heavy, and full of jiggly fat and strong muscle. Her ass and thighs were even larger now, and between her back legs was a huge udder that was already feeling somewhat strained from the milk it was producing. Angling her backside to the mirror, Samus saw she still had a large, round asshole that faced outwards, but her pussy had changed somewhat. Instead of the large puffy mare pussy it had been before, Samus was now supporting what looked like a tighter, somewhat smaller pussy instead that appeared more as a slit between her large legs.

Looking up at the rest of her, she looked like she had gained some cow DNA in her human appearance as well. She looked softer, she had the ears of a cow, and her tits were gigantic. Not only that, but she was beginning to feel the same pressure from her udder in her breasts, and as she watched, the front of her zero suit where her large nipples pressed against the material began to darken slightly as they became moist with milk.

As the need to be milked steadily grew, Samus thought about whether or not she should do something about it, or if she should just take the upgrade chip out entirely.