You can visit the the Artist here https://www.furaffinity.net/user/shawoo/
Link to this gallery https://www.furaffinity.net/gallery/shawoo/folder/941632/Mooo-/

Story for the Images:
.:1:.
That milk he just drank, it wasn't just a random milk. It tasted really, really good. The best milk he ever drank actually. But drinking such a rare and good milk can have some severe consequences... Look at him now... actually, he's more a she now, look at thoose breasts, and those huge udders ! She will be able to produce her own milk now ~

.:2:.
Apparently, she also drank that milk... And she's now undergoing some heavy changes... I mean... have you seen the size of her horns ? That and also other things too...
She probably thought her roomate was going to help her and headed for his room... But I think she's realising that he is the one that actually needs her now...
And the sight of her roomate is making her new body parts react quite hard~

.:3:.
At the sight of her changed roomate, her cock throbbed hard. For some reason, he looked... really... really attractive. Something in her mind wasn't even thinking about him as a "he" but as a "she" now.
The roomate just barrely looked at Sylvia... He She only had eyes for that rock hard bovine cock. She didn't even cared about what had just hapenned to her, about the fact that she was a very normal man a few hours ago. That cock, that was all she had in mind now...

.:4:.
The roommate moved slowly on the sofa, staring at Sylvia's throbbing bovine cock. She was frozen on her two massive legs, she couldn't move as her roommate was coming closer and closer to the thing she was craving... Sylvia's mind was flooded with strong and bestial thoughts, she tried to keep her roommate away with a few moaning and a hand gesture but that was probably not going to stop that horny cowgirl...

.:5:.
And here she was, tasting Sylvia's cock for the first time. It felt so amazing, for both of them. Sylvia moaned, it almost sound like a moo. Sylvia's body was still frozen, she couldn't move. Thoughts of her roommate doing more than just licking her cock were flooding in her mind.

.:6:.
She couldn't stop now, she wanted more, she had to take that cock deeper in her mouth and as she was sucking, her own cock started to shrink, what good can a cow do having a human cock ? She took that cock deeper and deeper, and her face changed, her mouth pushed forward, allowing her to greet that big cock in her mouth more easily...

.:7:.
Sylvia felt hot, too hot and so tight in her human shirt ! She had to remove it, before she got stuck in it. With a clumsy move she pulled her shirt off, the fabric of the cloth tangling with her horns, moaning loud as the cow girl was still sucking her hard and throbbing bovine cock. The roommate sent her other hand touching her changing genitals, she didn't need that silly human cock anymore ! She needed a pussy because she was CRAVING for that bovine cock...

.:8:.
With a swift move, the cowgirl removed her remaining human clothes and kneeled in next to Sylvia not even a second after she could finally break free from her shirt. The cowgirl was pulling Sylvia pants down, looking at her licking her lips still wet from bovine pre-cum. A bull doesn't need pants ! Sylvia was still fighting all of those thoughts, all of these male instincts in her mind and the cowgirl was aware of that, she knew that if she was going to fast, Sylvia could probably run away, so she had to be gentle and tease the bull out... And it was working, Sylvia couldn't help but stare at that cow right next to her, pulling her pants down, making her cock throbbing again and again...

.:9:.
After pulling Sylvia's pants down and moving them away, the cowgirl stood up brushing softly Sylvia's strong upper body. The bull's cock found its place between the Cowgirl's breasts and udders and it felt so good for both of them...
The cowgirl softly started to whisper to Sylvia's ears 'Come on Big Boy, why don't you let that sexy Bull out to play ? I know you want that as much as I do...'
Being called a "Big Boy" made Sylvia moaned softly with a deep and manly voice, unaware of the tail her and the cowgirl was growing...

.:10:.
The Cowgirl slowly moved in front of Sylvia, making sure to give her gigantic Bull's cock and warm and nice place to rest. Sylvia remained silent, only moans that sounded more and more like Bovines Moos where coming out of her mouth. 'Yes ! It feels good right ? Being a sexy Bull like you...' Said the Cowgirl as she felt Sylvia's hand touching her body for the very first time. Squishing her breast around the bovine cock.

.:11:.
And for the very first time as well, Sylvia was smiling from the intense pleasure and lust. Resistance in her mind was fading to leave more and more space for that "Big Boy" she was becoming. Her breasts were almost gone, leaving place to some big and muscular pectorals. The cowgirl was smiling as well with need and anticipation. She knew it was just a matter of seconds now before the Bull was ready...

.:12:.
Without rushing anything, the Cowgirl moved away from Sylvia and showed off her goods, hoping the Bull will be receptive to her advances. Sylvia didn't moved a lot and grabbed her cock in her hand instinctively, it was getting heavy first of all... But also because something in her head was asking her to stroke it while the cowgirl was posing for her. Her strings broke as her body was still getting bigger and her bovine tail was swaying behind her strong body.
"Come on you strong and sexy Bull, show me what you've got ! You can't resist this do you ?" The Cowgirl said with a playful but also trembling voice. Her body was craving for that cock, and she knew she was going to have it now. Sylvia's reaction was explicit.

.:13:.
Sylvia couldn't hide the excitation, the lust anymore. She started to masturbate her cock at the sight of that wet cow pussy. She felt strong, she felt powerful, she felt horny and... manly ! she touched her breasts that were now almost completely gone only to be replaced by strong pectorals. Her cock was leaking pre-cum and she couldn't help but lick her lips with that view she had on the cowgirl's pussy. She growled and moaned a bit...

.:14:.
With a swift move, Sylvia was on her knees, lifting the Cowgirl's tail with a hand and grabbing her leg with the other. She then plunged her long bovine tongue in that juicy pussy she had been staring for a while. She wanted to taste it, to explore it with her long bull tongue. The Cowgirl let out a surprised gasp followed by bovine-like moans, she wasn't expecting Sylvia to be so enterprising and so "creative". She couldn't help but squirt a bit as she was being explored from the inside like that.

.:15:.
Sylvia stood up suddenly and armed her massive cock, putting the tip just against the Cowgirl's inner lips. 'Is this what you want you Cowslut ?' Said a very deep and masculine voice, it took a few seconds to realize it was actually Sylvia's voice. It was the sexiest, manliest and beastliest voice she had ever heard. Her heart pounded in her chest as the Bull said those words. She couldn't help but let out a surprised and lustful "Mooo" for only answer.

.:16:.
The Cowgirl was a bit shocked when she felt Sylvia's tip pushing inside her pussy. She now realized actually how BIG that cock was and how tight she probably felt for Sylvia. She looked back, looking at Sylvia's grinning at her. Something in her eyes had changed. She was not a "she" no more, he was now the big and strong bull she had been waiting for. "Here I come..." He said with a deep voice once again...

.:17:.
The Bull didn't go easy on the Cowgirl when he plunged his fat bovine cock deep in her pussy. His massive balls swinging with the Cowgirl's udders and breasts as he started to move his muscular hips. She was almost completely rise in the air as the thrusts got faster. He was holding her by her leg and by her tail tight and firmly. The Cowgirl moaned and "mooed loud". 'This is what you wanted, right Cowslut ?' The Bull said as he kept humping her.
She just couldn't be more pleased...

.:18:.
The humps and thrusts where getting faster and more and more intense. Moans and growls where getting louder, bodies warmer and thus started to glisten with sweat. The two bovines where now mating for a few minutes already, and they where getting close... Come on big Bull, fill me ! The Cowgirl eventually said between growls and moans...

.:19:.
Once again, the Bull surprised the Cowgirl and lasted much longer than what she was expecting. He even changed their position before giving some last strong and deep thrusts before finally unleashing his Bull's load deep in her, making her belly instantly swell. He pushed a strong and loud male bovine 'Moo'. She also couldn't retain her orgasm as well, which was translated by a loud 'Moo' but also milk spurting out from her udders and breasts.
Ironically, she was staring at that bull's painting she had on the wall during her entire orgasm. Which only made it even stronger.

.:20:.
After their earthshaking climax, they needed to take their breath a little, they both took that opportunity to explore their new bodies. Well, more her than him but he wasn't going to complain as she was worshiping his massive balls. He felt so strong, so dominant.

.:21:.
Weeks have passed now, and of course, the roommates didn't stayed in their old human apartment. It only took a few days after their first breeding for them to instinctively move out in the wild. Where they are now living together, spending most of their time eating, sleeping and mostly, mating. Their libido has been increased a LOT since their transformation and they need to breed several times a day to feel slightly satisfied. Their bodies continued to change a bit, the Cowgirl got more chubby, and her belly got bigger probably involving her pregnancy, or maybe just too much Bull's semen. Her hairs had also naturally grown longer to give her an even more feminine and attractive look for the Bull.

The Bull on the other hand, got his body covered with more fur and his once feminine bob hairstyle had also naturally changed into something more fitting for his new form.

It's hard to believe that the Cowgirl was once a very normal and straight man, and that beastly and manly Bull was once a very delicate and feminine woman, right ?

You may encounter them in the forest, as horny as ever... Always ready to mate. Be careful though, their 'milk' is probably contagious ~

The End

.:22:.
Naked Alt of 2