Livestock Prison (5): The Shame of Size Measurement
Size measurement was one of the processes for evaluating the basic physical qualities of a subject as livestock. It didn't always determine the exact role assigned, but it played a significant role as a reference point. For instance, those with naturally large, sturdy breasts were often designated as milk cows, while individuals with strong legs and thighs were frequently assigned as pony girls. Physical condition could never be ignored when determining a livestock's role. And size measurement inherently came with profound humiliation. After all, it couldn't be done without it.
"To measure sizes accurately, we need to heighten sexual sensitivity first. Hmm..."
The simplest way to boost sensitivity was to administer an estrus drug. But there was a problem. Size measurement included not just clitoral and nipple sizes in arousal, but also average love juice volume and various physiological tests. An estrus drug could easily contaminate those results. So they couldn't just use anything carelessly. That might be fine if the role was already set, but caution was needed now.
"No helping it. I'd love to use the estrus drug, but we can't."
The doctor pondered for a moment. How could they measure more effectively? Of course, the deeper his contemplation grew, the darker Saeko's expression became. The situation itself terrified her.
...An estrus drug? That's not something you use on people.
At least, that's how Saeko saw it. Estrus drugs were typically used for animal breeding, not humans. It drove home just how far she'd fallen. Tears simply flowed. She couldn't tell if it was shame or fear.
"No choice. Let's start with love juice volume."
The doctor shrugged helplessly.
"Love juice volume...?"
"Nothing major. We just measure the average amount produced. More love juice means the livestock can endure healthier service, after all."
Frankly, whether love juice volume correlated to livestock health didn't matter. What mattered was that measuring it meant probing Saeko's own intimate fluids. And those came from her pussy, which meant an inspection down there, one way or another. Her face naturally darkened.
"Don't worry. It won't hurt much. Just some simple stimulation, and it's done."
"Stimulation...?"
In response, the doctor picked up two tools. One was familiar to Saeko—a vibrator, blunt and bulbous at the tip. She'd used one before. But the other was different: a long, thin rod with a small ball at the end. After seeing the first, she could guess its purpose. With "love juice measurement" and the vibrator in hand, it was obvious this rod served a similar role—no explanation needed.
"......"
"Simple. Won't take long. About thirty minutes?"
"What?"
How was thirty minutes "not long"? She wanted to argue, but experience told her it might drag on longer or turn even more humiliating. Saeko clamped her mouth shut.
"This one's quicker anyway. Stronger too."
With that, the doctor chose the unfamiliar tool over the standard vibrator.
"Saeko?"
"......Yes?"
"Any favorite spots? Like erogenous zones?"
"......"
Saeko hesitated. She didn't want to reveal such a personal, bodily secret, even in her fallen state. But then again, enduring endless humiliations while they hunted for it might be worse than just telling them outright to end it faster. Her mind raced. They were exactly the type to torment her mercilessly for it.
"......I like slow rubbing around the clitoris."
"Like this?"
Vrrr...
The tool in the doctor's hand began vibrating with terrifying intensity. The noise alone choked her breath. He pressed it straight to her pussy.
"Starting light."
"Hnnngh... Uhnngh."
As the vibrator's tip slowly rubbed over her slit, Saeko grimaced and panted roughly.
"Haa... Haaaa..."
"Good reaction. As expected from a top-grade specimen."
Her folds soon glistened slickly—love juice flowing, proof of her arousal. Unwanted, but her body was brutally honest.
"Sensitivity's excellent. Measurement starting now."
He placed a graduated glass cup beneath her legs.
"Thirty minutes total. I'll vary the stimulation to maximize secretion."
Terrifying words for Saeko.
Vrrrrm...
As promised, the vibrator grazed her skin slowly. She trembled.
"Hup... N-no... don't..."
Legs bound, she still thrashed, twisting to minimize it—but futile. The vibrator slid lower, hovering at her hole.
"How about here?"
Not meant for insertion, but the doctor's tone suggested otherwise. Saeko screamed to stop it.
"...This alone is driving me insane...!"
But it slowly pushed into her entrance.
"...N-no!"
Her scream echoed. A slow smile spread on the doctor's face.
"Direct vibration inside the entrance gets you wildly aroused. Can't believe they skip this."
Simple reason: it felt too good, reaching deep. But habituating to it ruined normal sex life—that's why restraint. Unlike her protests, the vibrator plunged in, pressing her inner walls.
Vrrrrmph.
Inside, the sensation defied words—pure overload. The internal buzz made her groan involuntarily.
"Haaahng... Haaack!"
A league beyond before; her pussy flooded wet. Breath ragged, body burning like fire.
"Super aroused? Love juice pouring like a flood."
"...N-no... not..."
"Liar."
As if to prove it, deeper thrust—then she squirted uncontrollably.
Shhhplurt!
Fierce jet from her pussy. Saeko didn't know it was squirting; only the doctor grinned knowingly.
"Excellent response. Not even ten minutes, and over 300ml already."
Huge even for livestock. He smiled because it meant Saeko had prime potential. His mind filled with ways to mold her into perfect livestock.