The sterile hum of the segmented machine filled the dim laboratory as the captured female dog, sleek and defiant even in her bonds, was drawn into the first chamber. Her fur bristled with instinctive wariness, but there was no escape from the contraption's relentless precision. A voice crackled from hidden speakers, smooth and sardonic. "Well, well, little stray. Ready to trade paws for something with more... grip?"
The machine's first segment clamped around her hind legs, reshaping bone and muscle with clinical efficiency. Paws elongated into slender human feet, then calves and thighs curved into toned, powerful limbs. The dog growled low, but as the changes spread upward, her body stretched and reformed. "You talk big for a glorified toaster," she thought, though no words came yet. The operator's voice returned, laced with wit. "Feisty already? Most subjects whimper by now."
Next came the torso chamber, where her canine frame molded into a voluptuous human silhouette. Hips widened into an hourglass bombshell curve, a narrow waist cinched above them, and full, firm breasts blossomed on her chest. Sweat beaded on the emerging skin as nerves fired with new sensitivity. "Look at that," the voice teased. "From four legs to legs that could wrap around trouble. Still feeling like a mutt, or is the upgrade sinking in?"
The arms followed, transforming into graceful, strong limbs with elegant hands. Her face was last in the physical sequence: muzzle retracted, ears rounded, eyes widened into expressive human orbs framed by cascading dark hair. The voice chuckled. "There she is—the bombshell. Voice next, darling. Say something witty once it hits."
With body and voice fully human, the final segment activated. A sleek mechanical arm extended, positioning a thick, ridged dildo against her now-human pussy. She was naked, panting, her new form glistening under the lights. "You think this toy will break me?" she retorted, voice husky and sharp. "I've survived worse than your vibrating gadgets."
The dildo thrust forward, sliding into her wet pussy with deliberate rhythm. She gasped, hips bucking instinctively as it filled her, stretching her dripping entrance. "Harder?" the voice quipped. "Or shall I slow down so you can keep bantering?" Her strong hands gripped the restraints, refusing submission. "Faster, if you can manage it, tin man. Make me cum or admit defeat."
The machine responded, pistoning the dildo deeper into her pussy while a secondary attachment teased her ass, slick and probing. She moaned, sweating, her body rocking with each thrust. "Oh, that's it—right there. Your cock substitute feels better than expected," she panted, witty even mid-pleasure. The operator laughed. "High praise from a former dog. Let's see if you come as hard as you talk."
Tension built as the dildo fucked her relentlessly, her clit throbbing, juices dripping down her thighs. She was horny, every nerve alight, ass clenching around the teasing probe. "Don't stop now," she demanded, voice breathy but commanding. "Earn that cum you're chasing." The machine accelerated, the dildo pounding her pussy until waves of orgasm crashed over her. She came hard, body arching, cum coating the toy as she panted and trembled.
The machine withdrew, leaving her glowing and transformed. She smirked at the ceiling. "Round one to the girl. What's next, operator?"
The chamber lights dimmed, hinting at deeper transformations yet to come.
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This is just the opening chapter. Continue the saga - or write a steamy tale starring you.