The Unwilling Petboy

Arthur did, without even stopping to consider whether he should follow the order. This girl had so much power over him. From now on, every slavegirl and every free woman would – and he would have none. As he felt his body change, the new reality took hold. He was a puppy now, and his only two options were to resist it, or to enjoy it.

"Now, puppy, the nanites are done with your legs and we're nearly ready to take off those nasty chains that you've been wearing since court. I know you can still feel the nanites working – they're making some changes to your hips and your back, you'll feel more comfortable soon, not like you're holding yourself unnaturally anymore, but more like this is just the shape your body defaults to. Mmmmhmmm, feels good, doesn't it?

"These are mitts. Give me your left paw first, and insert it into the opening, now your right paw, and do the same. The mitts are going to bond with the muscles in your hands, so you need to have an open palm but to curl your fingers over at the knuckles, while your thumb rests alongside your palm. And ... done. Well done, puppy, you just got two very handsome paws. For the next two years, you don't get to use your hands. Ever. No more wanking for you – either your owner will do it, or you'll hump something, or someone. Lots of eager petgirls out there. Or petboys, if that's your thing.

"Speaking of which ... your cock doesn't look right to me. I like to make puppies. Proper puppies. Really cute, lovely good boys. That's not a puppy cock - it's too long and the balls are too big and they hang too low. So, we programme in some changes and, there, watch it go. So sad, little puppy boy. So sad. It'll actually get erect to the same size it did before, so you can still give another lovely puppy a good seeing to if your owner lets you. But you look much cuter with a smaller one, you are only a puppy after all, and now if you'll just shift around for me – don't you move away from me, bad puppy!"

Arthur cringed and shuffled back to the slavegirl, though he had barely been able to move half a metre away from her on top of the metal table. She had obviously set his nanites to keep his new, shorter cock soft, and now Arthur grimaced as the slavegirl added her signature touch – a bright pink satin bow tied tight around the base of his shaft.

"It's a smart fabric, puppy, so even without your hands, it's not coming off until someone else takes it off. I think it makes you look like a lovely little darling puppy who's just so eager to please. And speaking of that, let's look at your tongue. Stick it out for me. No, not long enough. Feel it get longer and stronger, feel it push out from your mouth and unfurl. Can you taste the air? You can, I can see it on the screen. I've made it hundreds of times more sensitive – you'll taste everything the world has to offer from now on, in all its glory.

"Well, petboy, you're nearly done. The nanites are going to keep working on your muscles from now on, so your arms – forelegs really – will be able to take your weight for hours on end and you'll be able to run and fetch and swim and have lots of good puppy fun. Your nanites will exude a tight little cage around your smooth little puppy cock, so it'll be kept well under control. Remember – only good boys get to cum.

"You will notice the nanites form a ring around your little ballsack too – that's a shocker, and believe me, you do not want your owner to ever have to activate it. But I doubt you'd be a bad puppy on purpose – just don't have it in you, do you? It really is rare to meet a new puppy as obedient as you are. You'd almost think they did something to your mind, but I know for a fact that's illegal, and your nanites would block any tampering like that. Such a good boy!

"I'm going to take off that temporary collar and give you a nice new one, which you'll feel sealing itself around your neck. It's absolutely unbreakable, and the d-rings mean you can be leashed easily. Now we have to mark you as the piece of property you are. Hold still while I inject this into your neck – it's your new chip. Anyone can scan this and find out who owns you, where you live, that kind of thing. I'm afraid it's never coming out again – as a security measure it fuses to your spine, in a way even the nanites can never remove.

"I'm going to tattoo your cute little bottom next. It says 'Pet-slave', 'Involuntary', 'No limits', then your designation number and your barcode. Deep breath, this will really sting – believe me I know. Oh, good puppy! So brave! Next, puppy, you need a tail! I'll just go get one...

"Right, this is a lovely lively springy tail for a bouncy puppy. I just pop it onto the base of your spine and 1, 2, 3, it bonds to your skin and starts finding nerve endings. Reach out to it with your mind, puppy, try to feel its presence. Now, let it know you're feeling happy, really happy today. No? Still in shock? Still sore about me shrinking your cock? You shouldn't be, this one's much cuter.

"There we are, I see a sheepish little wag starting. Good boy! Oh, how it wags when I say that. Good, good boy. Ha! Why did you ever resist this? Let's review. Muscular changes, done. Sensory changes, done. Collar, done. Tail, done. I think we could still do something different with you, though.

"Hmmmmmmm. Let me think. Oh! Spots! That's perfect. Just a few big ones here and there, nice contrast coming out, let's reposition, maybe one across part of your face, oh that's perfect, I really am excelling myself today. And ... done. Mistress! If it please you, your obedient slavegirl has finished!"

The stocky trainer came over and the slavegirl knelt down to kiss her feet when she approached. The trainer ran her hands all over Arthur's body, picking out the new musculature that had been reshaped so expertly beneath his skin – he thrilled to her touch, to the sensation of being inspected, to her surprising gentleness. She checked in his mouth and even cupped his new cock and balls in her hand, then declared herself satisfied.

"Slavegirl," she said, "take this one to the cages and then return here to clean up. This is excellent work – he's a gorgeous puppy. Tonight you shall be allowed to cum when the trainers fuck you with our strapons. Well done!"

"Thank you, mistress," purred the slavegirl.

She dropped the table and took up Arthur's leash, which was fastened to his collar by a simple clip that his mitted hands had no way to unfasten. It was far more comfortable to crawl after her now, and far more arousing, for he could smell the wetness in her pussy and could even taste its trace on the air that she passed through. His knees seemed to have formed some kind of pad of hard skin, and there was no pain in them now when they scraped along the floor.

There were many mirrors dotted throughout the training complex, and Arthur found his eyes drawn to them as he passed, so that he could get to see his new body from every possible angle. It did look very new, very smooth and supple, very fresh and spritely. He reached up to scratch an itch on his face and found the new mitts were not nearly as good as his fingers. He made the best of it – he would have to from now on, for he was not really a man any longer. He was a petboy now, and there really was no going back.

The slavegirl bade Arthur goodbye and placed him inside a two metre square enclosure of clear plastic, which she shut with a simple bolt, blowing a kiss as she left. The enclosure was one of many in a long line, most empty of pets at that moment, for Arthur was one of the quickest conversions that day. The enclosure had a pet toilet with automatic pet-washer, a water bowl, and an empty food bowl, at the sight of which Arthur's stomach rumbled. His breakfast before the court appearance really had been a long time ago.

New petboys and petgirls drifted in one by one, until the enclosures each contained a new human animal, pawing at the door, curled up on the floor, waiting for food, or just generally trying to adapt to their new forms. Arthur salivated at the sight of so many petgirls in one place, in all shapes and sizes and mostly very aroused – he could smell them all. His own cock was now locked in its little cage, which was made of unbreakable nanite metal. He panted and twitched in frustration as it held back his incipient erection.

Arthur had drunk a lot of water from the bowl to slake a great thirst brought on by the process of changing his body. He had recognised the pet toilet for what it was – a sort of raised hole in the ground – but had not really considered the process of using it. He was surrounded by naked petgirls and petboys, all able to see him through the clear plastic enclosures they were held in. There was nowhere to hide, no way to make himself less visible, and no way to hold back the need to pee any longer.

A dozen pairs of eyes watched Arthur as he crawled to the back of his pen, where the pet toilet sat. He thought perhaps they could smell that he was about to pee – he certainly could. There really was no way he could hold it forever, and what his body needed, his body needed, so he shuffled into position over the toilet, getting his cock cage into the right position to direct the stream, then tried to relax and let go. It was a challenge. All that happened was a tiny, timid trickle coming out then stopping.

A tapping on the glass from the next enclosure caught Arthur's attention. He looked into the eyes of the new petgirl held there, and admired her cute button nose and her nice red hair that someone had put up in pigtails. She crawled over to her own pet toilet and squatted her newly hairless slave pussy over it. She raised an eyebrow to Arthur – ready? He woofed and she smiled, then they went at the same time, holding each other's eyes until the embarrassment had passed. He woofed his thanks and she barked her acknowledgement.

An hour passed and Arthur waited to be fed. He could sense the hunger in the other petboys and petgirls around him and wondered why their trainers should make them wait so long to eat. Didn't they need to rebuild their strength? Another hour passed, and all at once, Arthur and the other pets smelled food approaching. They all started to pace back and forward, some even pawing at the doors of their enclosures.

The facility staff and human slaves loaded dry food into special compartments in the doors of the enclosure, which would allow the food to flow down a chute and into the pets' bowls. When they left without activating the chutes, Arthur's heart sank. What gave them the right to be this cruel?

"Petboys and petgirls, listen!" came a voice through the speakers that lined the room. "Only good boys and good girls get fed. Today, to be a good pet, your owners require your obedience in taking up some basic pet postures. Only pets who enthusiastically take up each posture will be fed. Bad pets will go without."

Text formed on the enclosure walls: 'Sit up and beg.'

Along with about half of the human pets, Arthur tentatively sat up and made a half-hearted show of begging. The pain ring around his balls sent a warning pulse through him, which jolted him into complete awareness. He urgently wanted to eat but even more urgently to avoid any more shocks, for he guessed – correctly – that they would only get worse.

Text formed across the enclosure wall: 'Sit up straight'. Arthur did. 'Legs apart, cock on show.' Arthur made sure it was and tried to remember to keep himself on display from now on. 'Raise your paws.' He complied. 'Tongue out' He stuck his new long tongue out and kept it out. 'BEG'.

Arthur and the other compliant puppies started to beg, whine, whimper, move their paws up and down, and generally make a strong showing of begging their new owners to be fed. Arthur noticed a few of the new pets begging with tears in their eyes, unable to contain the humiliation. And yet, Arthur felt none. Instead, he found that his new senses overwhelmed everything else. His owners said to beg, and the food smelled so good, and he wanted the food, so he begged and begged like the good boy he was.

'Good boy' appeared. Arthur flushed with pride. 'Sit'. Arthur was confused – wasn't he already sitting? How did petboys sit? More text appeared: 'On all fours, fold your hindlegs beneath you, forelegs shoulder width apart, thighs open.' It seemed easy enough to Arthur to follow, and he could see the pigtailed petgirl in the next cage getting on equally well, displaying her submissiveness and her bare pussy for all to see.

'Stay' wrote the text. Arthur froze, and a countdown started. Five long minutes ticked down, with extra seconds added every time he twitched or shuffled. His stomach growled but he was determined to get the food, and he forced himself to be still, until he realised that forcing his body was the wrong way to be still. He had to relax into it, to let himself be still rather than to make himself be still. The seconds ticked down, then the minutes, all while his stomach rumbled on and the food smell wafted into his nostrils and sent him salivating.

'Good boy,' wrote the text when the long minutes were finally over. 'Roll over. Display yourself. Enjoy.' Arthur rolled clumsily onto his back and then shifted his haunches to produce a roll. It wasn't an amazing effort, and on the ceiling of the enclosure, the text came again: 'Throw yourself into it. Roll over, boy.' Now Arthur really flung himself back and forth, rolling up against the edges of the cage then going back the other way. All the while, he made sure that his caged, bowed cock and balls were on display between his lewdly open legs, and he breathed deep as his new muscles started to ache with the effort.

'Good boy,' wrote the text. 'Good boy. Good boy. Good boy. Good boy. Cease. You may now eat.'

Arthur dove into the food the moment it came through the chute in the door, taking it in in great greedy mouthfuls while his enhanced tongue turned the dry biscuits into mana from heaven. The deep sense of satisfaction that came over him was equal parts satiating his hunger and pleasing his owners. The other obedient pets dug into their food with total abandon, hunting any spilled biscuits off the floor. The disobedient pets were simply made to go without, and Arthur doubted they could hold on much longer.

After a chance to digest, the enclosures put the new pets through more obedience drills, reinforcing good behaviour with a little extra food, and punishing disobedience with shocks from the collars and pain rings that all the new pets wore. Arthur panted his way through it, at first growing more and more conscious of his powerless puppy body and its total exposure, then finding that the movements became natural, expected, part of his new body. A long time later, he crawled to the small bed in the corner of his enclosure and closed his eyes as the lights were shut off, and he fell to sleep with the scents of two dozen human pets in his nostrils.

In the morning the enclosures put the new petboys and petgirls through the same routine to get food. There were fewer holdouts this time, and Arthur found it easier to throw himself into the movements when it was clear that the others' minds were breaking to their new roles too. Every time the text on the cell wall spelled out 'good boy', his body tingled with a rush of happiness. It was a look he could see in the faces of many of the other pets too.

After breakfast the pets were kept in their cells for a while longer. One wall of each enclosure became a mirror, and Arthur passed the time looking at his new body. Nose, tail, mitts, ears, tongue, spots and a bow around his cock. He was a petboy all right, and there was no way back that he could think of, for this would be his legal status for the next two years, without possibility of appeal or pause.

A few of the new pets were having more trouble than most adapting to the changes that had been forced on them. Arthur watched in horror and fascination as they hurled themselves against the walls of their enclosures, pawed at the doors and barked themselves hoarse, until their nanites sedated them or they grew tired of the futile resistance. He couldn't help but notice that they could only resist by acting like animals.

He became aware while watching one petgirl act out that the petgirl in the next cell, who he could see through the clear wall, was looking at the display being put on, then back at Arthur. He caught her eye and mouthed the words in his mind: 'Pointless, isn't it?' only to be met by a colossally powerful shock to his balls.

'Bad puppy' came the words in red, appearing on the walls all around his enclosure. 'Puppies do not use human language. Speak, puppy!' Arthur yipped and barked, anything to stop the pain, and the text on the walls changed again. 'Good boy'. Evidently something had sensed the attempt at human communication, perhaps a camera or perhaps even the nanites that were in every part of his body – he knew then that he would have to take great care never to try and speak like a human again.

The petgirl in the next cage looked at him sadly, and used her whole body to shrug - what can you do? Then she yapped at him in her adorably sweet, high pet voice and turned to face him, displaying her whole naked body to him without a care in the world. He was about to mouth the word 'thank you' when he remembered himself – his new self – and decided to show his thanks another way. Lolling out his tongue, he panted excitedly, widened his eyes, and yipped back at her, then he turned to face her and displayed himself to her eyes.

They looked each other over, comparing their hairless pet-slave bodies. It seemed the most natural thing in the world now to Arthur to hang out his tongue and use his whole body to show what he was feeling. His cock cage twitched up and down as his little puppy cock tried to get hard in it, and he found to his great pleasure that the redheaded petgirl in pigtails locked hungry eyes on his member and ground her wet pussy against the floor. They took mutual enjoyment from each other, and Arthur learned to his satisfaction that in his new form, a female could look at him with lustful desire, so unlike the squeamish glances he had endured as a free male.

After lunch – which required a new performance of jumping like a dog to earn – handlers came into the holding area and unlocked the pets who had been compliant so far. Any that had refused a meal by failing to perform were simply left in their cells, to grow hungry and bored. A new slavegirl Arthur hadn't seen before clipped a leash to his collar and to the redhead from the next cell, then led the pets off at a brisk crawl to the facility's exercise fields.

"Petboy," said the slavegirl, "you will chase after this stick when I throw it and then pick it up in your mouth and bring it back to me. Bring it straight to me and do not get distracted. Here, smell the stick. Bring this one back, don't bring me anyone else's. Go, fetch!"

The slavegirl used her regular human body to hurl the stick far away, and Arthur tracked it with his eyes as it fell. He hadn't even realised he had started running after it, and it seemed that his his petboy frame knew how best to run on all-fours without him having to work it out. With the stick in his mouth, he looked round to find his handler and found that he could smell her even from that distance. Her arousal was sharp in his nostrils, as was that of the pigtailed petgirl whose leash she held.

Arthur raced back to them and proudly presented the stick to the slavegirl. She took it and patted him on the head, with a "good boy!" that made him blush all over, then threw it again. Arthur's newly enhanced ears caught his handler giggling as he ran, and he wondered what his caged puppy cock and balls must look like bobbing up and down as he pelted away from her. The petgirl was yipping excitedly too, and kept on using her new voice as Arthur raced back and forth.