Nina winked at her guards as they approached the training block. "You can go take a break," she said. "This cow won't cause any problems for me."
She squeezed Ashley's neck, Ashley trembling under her grip. Despite her musculature, while in her control, the woman had turned increasingly docile.
It was rather unexpected, and she thrilled at the taste of the unknown. Usually cows who decided to resist were belligerent until they were broken, but this one was already becoming pliable to her influence. Either she was further along in the process than had been reported, or there were special circumstances.
She peeked at the cow's neck, noting four dots on each side. Ashley was exhibiting the behavior of a stage three cow, but with only eight injections, she should by all accounts be stage two.
She moved in close and clinically ran a hand over her chest, Ashley squirming from the attention. No, as she had thought, her next set of breasts were only budding. And this was not an Ultra. Those tended to balloon up quickly, gaining breast mass so fast their keepers were barely able to keep up.
This one was following the usual schedule, nothing out of the ordinary. The way she was acting was a mystery. How exciting!
Was she a cow lover? One of those who secretly wished to be under a mistress' control? She squeezed Ashley's neck roughly, steering her left into the exercise room. "Tell me, cow, have you ever fantasized about being controlled? Being milked?"
Ashley stumbled at the unexpected turn, the door rumbling shut behind them. She regained her balance with little trouble. "No," she declared in a strong voice. "I can't say that has ever been one of my fantasies. I don't like giving up control. The thought of being forcibly used is abhorrent to me."
Her voice was a little uncertain at the last statement. "At least, that's what I thought. Every time you squeeze my neck, I can't stop this feeling of submissiveness from rising in my chest."
Nina squeezed again as an experiment. Ashley sagged, clinging onto the front of a treadmill which had been mounted in the center of the exercise room, hands tangled in loops that were fixed to the hand rests. Her face flushed and she groaned. "Could you please stop doing that?" she requested. "The sensations are uncomfortable. I really need release."
Nina examined her closely. This wasn't the normal progression. This cow was breathing heavily, flushed from the attention. Her nipples were stiff, breasts swollen. With minimal handling she could be brought to orgasm.
Normal cows were highly sexual beasts, but not to this extent. Not for just any keeper. Only for ones they had been Paired with.
A shock ran through aching body, one she thought she would never experience again, not after the death of Ana. A sudden tension struck her. It couldn't be possible!
She unwrapped her hand from around Ashley's neck carefully, half closing her eyes as she did so. "Fuck no, not again."
A faint outline had been traced onto the cow's neck, a pie shaped circle. Under her inspection, the symbol darkened minutely.
"Ah, what's going on?" asked Ashley with a light twang, turning to try and figure out what had caused the seasoned keeper to curse. In that moment, her face was replaced with that of another cow making the same gesture.
Nina stumbled back, shot through her heart with pain. She set her back against the wall, shivering uncontrollably. The hackles on her neck rose. She couldn't believe it.
"I'm too damn old for this," she groaned. "This can't be happening."
If this was a miracle, it was a shitty one. She blinked, the old images banished from her mind. Her past mistakes were not relevant here. This required cold, hard logic to solve.
She ran her hands over her slick, black bodysuit. She hadn't bothered wearing one with accessible breast flaps for ages, as she was far past the prime of her life, her fertile years behind her. To her horror, she discovered that they were feeling tender underneath the rubbery material.
In all her research and experience, she had never heard of this. Her mind leaped ahead, thinking of the implications. She might become a new case study, fertility in old age. Perhaps the common wisdom was not entirely correct.
She blinked, banishing the fantastical thoughts. Milk production simply didn't occur at her age. There must be another explanation. Until she had a better handle on what was going on, she would need to keep this cow compliant and occupied.
Calming down, she projected an air of confidence to overlay her concerns. Cows should not have to worry about the details. "Ashley, your new designation is MU4. I do not expect you to respond to your new name at first, but over time you will learn that you will only be addressed by your new title. MU4, step onto the treadmill."
Ashley hesitated, looking at Nina and the locked door for an alternative. There was none to be had. This cow was going to need encouragement before she decided to resort to violence.
That was rare for cows not showing milk madness, but it was still within the realm of possibility for those who had not yet accepted their new role.
She stepped forward and wrapped her hand around the cow's neck, staring her down. "You will follow my commands and get onto the treadmill," she commanded, forcing her will into her inky black eyes.
Ashley blanched, turning to step up onto the treadmill. At eight injections, whatever resistant she could scrape together wouldn't be sufficient unless she had gone milk mad. This wasn't a bad cow, just an untrained one.
"Put your wrists through the loops," she commanded.
Ashley did as she desired, the automatic locking mechanism cinching a loop of material tight to hold her hands straight out in front of her. Nina let go of her neck, warmth sparking under her palm. She wasn't imagining things, the symbol was getting darker. The mysterious bond was strengthening. She needed to talk to somebody else about this to confirm she wasn't going crazy.
Ashley was restive, her wrists jerking in the restraints. "What are they doing to Iris and Daisy?" she asked. "Will they be okay?"
Nina sighed. She still had a job to do. "Daisy will be fine," she declared. "Nora was top of her class, and knows how to train a cow. Iris will be fine, too. You should concentrate on your own training."
She bustled over to a side cabinet and bent over, retrieving a jangling belt fitted with several leather straps. "Let's get you hooked up," she declared. "You're not an Ultra, so you'll be following the normal schedule. With eight injections, I expect you won't need to be milked for several more hours. Cows who are just starting out need to be milked about twice a day."
She moved the harness in front of MU4 so she could get a good look. Two rubber tubes dropped from the bottom of the harness, leading to pressure pumps. The interior was fitted with two, medium sized dildos, which could be inflated with pressure to fit snugly inside any cow's nether regions.
"This is a sex harness," she stated, not sugar coating anything. "It acts as a reinforcement mechanism. The system will take you through a series of scenarios. Uphill, downhill, and stiff, level grades. After each period of exercise, the system determines how hard you've worked. If you've been a good cow, the system with reward you."
She gripped the front dildo with one hand, rubbing up and down as the dildo inflated. "If you've been bad, the system will punish you."
Ashley's eyes widened as the dildo continued to expand, until the thickest part of the shaft was as wide as a soda bottle. Nina chuckled to herself, knowing that the system's safety limits would never take it this far. The cow didn't know that, though. They always believed whatever the keeper told them.
"After a period of rest, the system will begin again. Since you are a new cow, I won't leave you here longer than an hour, though some cows I have trained have run marathons in this belt."
Ashley cleared her throat. "What is the longest distance recorded on this trainer?" she asked.
Nina considered. "We had a blue roan run a marathon, but she was so fucked out of her mind by the end of it that it took a few months for her to recover. I don't sanction that kind of event any more."
Ashley grinned, marching in place. "What a shame. I'm sure I could have beaten her record," she declared.
Nina shot her a dark look. "Don't even think it," she replied. "It's far too dangerous."
Grunting, she leaned over and set the belt on the treadmill in front of her cow's feet. "Come now," she commanded, tapping her hand against Ashley's left ankle.
Ashley obliged her by lifting up her foot so that the keeper could slide the rounded opening underneath. The process was repeated with her right foot, the belt sitting flat on the floor.
Nina grabbed it by the buckle, standing to fit it around Ashley's waist. The upper part of the harness fit loosely around her torso, jangling as the keeper worked to move it into place. "You have a nice ass, MU4," the keeper declared. "How often do you work out?"
She cinched the belt tightly over the swell of Ashley's ass. The cow leaned forward, accentuating her rippling thigh muscles. "Every day," she replied. "It's impossible to stay on your game if you don't put in the work. And I never skip any of my exercise routines."
"Dedication. I admire that," said Nina. "It will serve you well as a cow."
She tucked a belt under MU4's nether regions, pressing the embedded dildos up against her snatch. "Just a taste of what's to come," she said, buckling the strap shut.
The dildos were deflated, nestled between the cow's legs. The automated reward system would insert and pump them up as required.