You can't help but stare as the huge Minotaur's balls pulse and start to swell once more. You've dodged the bullet for now, but it's clear that the female bovine 'taur could decide to turn you into a milking toy at a whim! Now you watch as the 12' tall Minotaur's ballsac grows even bigger.
The creature's balls had already hung from his hips to his knees when you entered making them about three feet long and -then- swelled to the size of five-foot watermelons after the first injection designed to bring his daily output to fifty gallons. Now, though, as the heavy, black flesh pulsed and grew, it was clear he was going to dwarf that estimate.
<Ssschlurrrp ... Ssschlurrrp ... Ssschlurrrp ... Ssschlurrrp...>
The pump attached to the bull-man's three-foot cock continued to pump him and work him, even unconscious, towards another climax.
"This oughtta be good," mooed Bessie with a grin, watching as her experiment made the bull's balls grow steadily, stretching with a sound like wet leather being pulled over rubber.
Before your eyes, the Minotaur's balls fill out and start lifting his hips and legs off the ground swelling past 6' across and filling out his sac tight, taut, and round... You watch, horrified and slightly turned-on as the twin orbs swell along either side of the giant penis, covering it up from your view as they swell past half the Minotaur's full height.
The Minotaur's body jerks and spasms suddenly and -then- huge bulges swell down his cock and through the pipe.
The Cowtaur squeals in glee as she watches the vats begin to fill.
"Oh, Gods, I had no idea this stuff could be so potent!" She grins as a gallon sloshes into the first vat in a single blast. "I'll definitely have to make more..." With that, she shoots you an evil look and goes into the back room of the stable where the augmentation chemicals are.
The unconscious bull-man's balls finally stop growing as his climax abates, each orb being seven feet in diameter!