Having found a comfortable position with my hind paws tucked under my body, I had no option but to lie still until we reached our destination. Doctor Timothy Cortney, my local vet, was driving the van in which I was imprisoned; in one of four cages. It was a small vehicle designed to carry dogs, or similar sized animals. The muscular doctor wouldn't have been able to squeeze into one of the cages, but my petite body easily fitted within the elongated space.

I wanted to cry out for help and catch someone's attention, but the shock collar I was wearing would jolt me painfully, so I lay still, miserable and sobbing my heart out. I was kicking myself for trusting the mean spirited doctor, a handsome black guy who I actually fancied!

Ever since owning a Great Dane bitch, I had fantasized about being one and being treated like one, but the reality was just awful. It was a dream I kept to myself and would never have disclosed it to anyone until I visited the vet at the beginning of the week. When I returned on Friday evening for a second consultation, my living nightmare began.

What really concerned me was that the vet had started planning my conversion to a Puppy-girl almost from the moment I met him on Tuesday evening. I was partially to blame because I was a willing participant in the Puppy game we played on his examination table. However, my suspicions should have been aroused when he started taking measurements and asking me personal questions.

The tight costume was an amazing bit of kit and had short fur, similar to a Labrador's. The suit came complete with realistically shaped paws to enable me to walk on my hands and knees; and there was a small section cut away between my legs and up my ass crack so I could behave like a real dog when peeing and defecating.

The play session in the garden and his insistence that I use the area set aside for dogs to poo on, hammered the seriousness of my situation home. He even let slip that I wasn't the first dog owner to spend time on his examination couch. Had that other young woman/ women suffered the same fate as me? I wondered.

The journey was long and arduous and try as I might, I couldn't fall asleep. Where on earth was he going at nine o'clock at night? Finally, the van began to slow and perform some sluggish manoeuvres before coming to a stop. I heard the vet get out of the vehicle and come around to the back, whereupon he unlocked and opened the back door.

A waft of fresh air bathed my body, which was beginning to overheat in the confined space. I wiped my tears away with the back of my paw, fearful of the vet's perverted intentions. I was certain that whatever he had planned for me was going to involve a considerable amount of discomfort and pain.

I was imprisoned in one of a pair, at the bottom of four cages that filled the back of the small van. The vet opened the wire door of my cage and patted me on the ass.

"Come on girl, back up," he urged.

I shimmied back and felt his hand slide between my thighs and cup my pussy. "Urrrrrrr!" I whined as he lifted my body and helped me down to the ground.

"Settle down bitch. Any misbehaviour will be punished swiftly," he said waving a riding crop in my face.

The vet had reversed the van up to the edge of a small parking area so he could set me down on a patch of lush grass. The expansive lawn disappeared into the darkness, but the gravel drive was well-lit by halogen lighting, high on the walls of a large, detached house. Lime green and red ivy covered most of the three story building, bar a dozen sash windows and the dark green front door.

"Chin up, Kerry," the vet ordered, so that he could clip the leash to my collar.

"Ruuuuuu," I whined to register my displeasure at the way he was treating me.

"Bitch, the sooner you accept your new life the more you'll enjoy yourself," he said in an aggressive tone. "Do you need to toilet?"

I stared up at his serious face. "Ruff, ruff," My tummy was rumbling, probably because he forced me to eat a bowl full of disgusting dog food, but I didn't want him to take the stopper out of my anal valve until I was near a suitable dumping ground. However, I needed a pee, so I sat back on my haunches and pointed at my pussy.

"I get it," he said giving the lead a tug. "Do it on the drive."

I crawled forward and positioned myself carefully, before raising a leg. I thought I was going to have a problem, but the wee flowed easily in a strong sideway jet.

"Hello Doctor Cortney," a man said loudly, shocking me to the core.

I could have died with shame for my ass was pointing toward the newcomer. I looked over my shoulder to see a uniformed black man approaching, carrying a torch. A large black dog by his side was pulling on the short leash that the security guard had wrapped tightly round his fist. I hurriedly turned and shuffled back so I was behind the line of the vet's legs.

"Hello Peter, thanks for letting me in."

"The Mistress said you were arriving at ten o'clock."

"Kerry Sit!" The vet ordered before looking around the small parking area. A silver Porsche sat on the other side looking lonely and forgotten. "Is your Mistress alone?"

I sat back on my haunches and reluctantly spread my thighs. The dog, who was still straining on the leash, suddenly copied me, and as he sat back on the gravel I realized, because of the shadows, I had misidentified the creature. It wasn't a dog at all, but a young man in a dog suit similar to mine.

A lot of work had gone into the design of the lad's face mask, which gave him an aggressive appearance. His own black hair hid the edges of the mask, but his flat snout couldn't disguise a set of sharp looking doggie teeth. The real giveaway was his fat white cock, which flopped about beneath his hairy belly. His huge balls had been covered in dog fur, which blurred the lines between animal and human.

"Yes Sir. Her guests left half an hour ago."

The vet pointed down at the imprisoned lad. "How's Max? He's due for a check-up soon."

"No problems to think of. He and the others are missing Penny, but now you've brought a new bitch..." He pointed his torch at my face and then directed the beam down to my crotch. "...the Doys are going to be a lot happier."