1 Year Later

"Katie Cow! I'm home!" Verlax yelled.

"Katie Cow?" a voice asked.

"Ah, yes, I forgot I never told you I'm married, have I my assistant? It's my pet name for my wife."

"Oh?" The assistant blushed a little, "I never knew."

"Oh, and she is wonderful! In our short time together you probably know how much I love it when my subjects volunteer for experiments, as a matter of fact, Katie cow was my first subject for an earlier prototype of our HC-Mod 1128-B formula." Verlax chuckled.

"Wow, a true pioneer. She must be a fan of the sciences like you, huh!?" The assistant smiled, her eyes wide with awe.

"Oh, I would not say that. Katie is very...simple, these days anyways." Verlax adjusted his glasses. "You will see what I mean. Katie Cow! Come here please!" The request was met awkwardly with a little bit of silence. The assistant and Verlax just stood at the door.

"Ah, I forgot, she's kinda slow. We'll go to her, she's usually in the kitchen."

Verlax led the assistant through the house to the kitchen, where there was a completely naked woman with breasts so large they obscured her arms, the woman put a finger dumbly to her mouth, as if she was gonna say something, but couldn't think. The assistant eyed her a little more. 'Katie Cow' was definitely a fitting pet name. The woman's hips were wider than the doorway, and her butt stuck out behind her, not only that, but the woman had a look on her face that made her appear vacant, like docile livestock.

"Honey, are you hungry?" Verlax asked, and the woman nodded, "~Mooooo!"

"What a cute moo! Did you hear her?" Verlax beamed at the assistant, his pride showing, and the assistant giggled, albeit a little uncomfortably.

'Katie Cow' looked at the assistant, and her expression was a bit quizzical, as she let out another moo.

"Oh, Katie, don't worry about her, she isn't like you. She is an assistant from work. Her name is Anna. She's works for the company, not like you, you're my test subject. She helps me with the science stuff, and you help me, well, with simpler stuff." Verlax rubbed Katie's big tits and kissed her neck.

Katie cow looked at the assistant with an awkward expression and waved dumbly, her mouth agape, but with a smile.

"Hello." The assistant said, she was still very much unsure of how to act, but tried to keep a straight face and pretend everything was normal.

"So, anyways, Anna, let's get back to business, shall we?" Verlax said.

"Um, sure."

"Katie Cow, be a good girl and make us some dinner while we talk about science, okay?"

"~Mooooooo!" Katie mooed again, and waddled over to the fridge, her enormous butt shook as she did so. The doctor and the assistant began to walk away talking about work stuff, when the doctor's phone rang.

"Excuse me, I'll be just a minute, you can wait in the study, and make yourself comfortable." The doctor left the room.

The assistant stood there watching the bimbo try and cook something, which, for a woman who's intelligence was reduced by the formula, was a challenge, the assistant noticed her having trouble figuring out the oven and the microwave. The assistant couldn't help but feel a little sorry for the poor bimbo, who was once probably a bright young woman. Although, she envied her a little bit. Doctor Verlax seemed to like her a lot, besides she was curvy in all the ways Anna wasn't. She had to admit she was jealous of Katie.
Anna was about to approach Katie to see if she needed help when Verlax re-entered the room.

"Damn it, I'm going to have to ask you to leave Anna, the state is going to be here to 'evaluate' Katie for her performance as my helper. Probabilities indicate it'd be awkward with you here."

"Oh. Well, that's a shame. It was nice to meet you, Katie!" The assistant waved at Katie, who had a confused expression on her face, and then left.

"Goodbye assistant!" Verlax waved.

After the assistant left, Verlax approached his curvaceous wife, and grabbed her fat tits. "I just wanted her to leave so I could spend time with you dear, how's my favorite test subject?" He said.

"~Mooo!" Katie cow responded.

"Good, I'm glad." Verlax then bent his wife over the table, and inserted his cock into her.

"~MOOOOOOOOOOO!" She cried as her husband fucked her.

"I love you too!" Verlax said, fucking her harder and faster.

...

Canon Bad End #1: Favorite Test Subject

And that was now the life of Katie. Later, Doctor Verlax would successfully convince the women from the gov't program that supplied her that Katie was now a 'resident' of his household. He did not, however, tell them that he used her as his own personal breeding cow, but they didn't need to know that. Her voluntary contribution to his work would eventually lead to HC-Mod 1128-B formula becoming a staple additive to livestock diets for ADE Enterprises, a dairy company.