Accidental Ponygirl

After a long drink at the trough and some rest in a grassy field where they could kneel without worrying about tearing their stockings, the girls had their arms freed from their armbinders and were ordered to bow forward with their asses in the air.

"This is a big day for you, sluts," Achilles said. "Not only did you get your new titty piercings, but now you'll be getting your final, full-sized butt plugs!" Next to her, Misty looked back over her shoulder in fear but was quickly admonished with a horsewhip to her upturned backside.

"Eyes forward!" the guard barked. "You'll be wearing this every day for the rest of your stay with us, so you'd better get used to it. Today, for the sake of expediency, we'll lube them up, but in the future the only lube you'll get is what you provide yourself. Now asses up, and spread those cheeks!"

Nicole obediently pressed her face into the grass and reached behind her to spread her asscheeks. From the howls and grunts of the girls that came before her, Nicole could tell that these new tails were a challenge for everybody. The guards were ruthless and efficient and soon it was Nicole's turn. She dared a peek between her legs as the guard prodded her anus with the new plug. She emitted a startled gasp as she saw it - nearly as thick as her fist at its widest and roughly six inches long. She wondered whether such a large object could even fit in her ass - the sobbing girls that were already plugged and crying seemed to suggest that it could.

"Arch your back! Stick out that hole!" Dilios snarled with a smack of her ass. Her poured lube all over the plug then worked a couple of slippery fingers into her butthole. Nicole grabbed harder onto her tight latex panties and pried apart her butt cheeks, hoping to ease the insertion as best she could. She, at least, had the 'advantage' of being stuffed earlier in the day with the dildos on the cart so her asshole was a little looser than the Alphas, whose tight holes only had the benefit of the guard's fingers to prepare them.

Nicole felt her body pressed forward as the guard thrust the hard plug against her tight asshole. The blunt tip burrowed past her sphincter, prying it wider and wider as the tapered plug sank deeper and deeper. The guard leaned into her, battling any resistance her tight ass offered.

"Nnngh! Nnngh!" Nicole begged. She released her hold on her ass cheeks and tried to squirm away but the guard held her tight. He pushed, twisted, withdrew, then pushed harder. Nicole screamed as her defenseless hole was stretched to its very limit, she felt like she was tearing in two! Finally the widest part of the plug passed her anus and the entirety of the object disappeared inside her ass. She had to fight the urge to reach behind her and pull it out. Her overstretched asshole twitched and burned as it involuntarily tried and failed to expel the cruel invader.

With the job done, the guard patted her on the rump and said, "Don't worry, you'll get used to it... eventually." Nicole whimpered as he moved on to his next victim.

Once everyone had their new tail inserted they were ordered back up onto their feet. The girls all rose, standing awkwardly as they came to terms with the bulky new additions to their assholes. Then each pony slave was tossed a leather blindfold and told to put it on. Afterwards they were chained together by their collars and guided to their next activity. A generous application of the horsewhip reminded the girls to lift their knees high and shake their tits to jingle their bells while they marched with their hands behind their heads.

They didn't have too far to go before they entered a building, their high heels clomping on the solid wooden floorboards beneath them. The guards adjusted their positions, keeping them standing in a line, front to back, with a few feet in between. They were told to stand with their legs spread, then the chains linking them together were removed.

The guards next went down the line, crouching between the legs of each girl, and snapped a tight pair of clamps onto their labia. When it was Nicole's turn, she felt the guard pawing at the folds of her pussy. With great restraint, she managed to hold her position while she felt her pussy lip pulled away from her body. Then there was a sharp snap as the first clamp closed hard onto her cunt. She nearly doubled over in pain, biting hard into her bit as the fierce clamp settled into position. The second one on the other side was nearly as bad. Her pitiful whimpers joined the other girls in a chorus of misery.

Now there was a clatter of chains as the guards brought out more things. The pussy clamps each had a thin chain attached that dangled down between their legs. Likewise, each tit ring got a chain hooked onto it. Only after those were all in place did a guard give an explanation of what was happening.

"Alright, cunts," Achilles said. "We're now going to work on your posture, your control, and your discipline. There is a sound sensor installed in this room which is tuned to the frequency of your titty bells. If they ring," Jugs gasped as his rough hand grabbed ahold of her bulbous breast. He shook her tit, vigorously ringing the bell clipped onto her piercing. In unison, all twelve pony girls squealed as a spark jumped up the chains connecting to their labia. "If they ring, you get a little shock."

Nicole, along with all the other girls, was now hyper focused on her tits. She found herself breathing more shallowly. Contrary to her orders earlier in the day, she now wanted to wiggle her chest as little as possible.

"Now," the guard continued, "if you reach out to either side of you, you'll find a small weight hanging down from the ceiling. I want you to lift them both." Nicole blindly reached out with both hands, finding a small metal ball dangling at shoulder height just at the limits of her reach. She picked each one up. They were about the size of a tennis ball and weighed a couple pounds.

"Everybody have them up?" he asked. "Good. Throw the switch," he instructed one of the other guards. "Now anyone who lowers their weight will get a nice shock to her tits. The more tension on the line holding the weight, the bigger the shock."

Nicole reflexively lifted the weights a little higher. They weren't heavy now, but if she had to hold them for an extended period of time like this then they certainly would be.

"And finally," the guard continued, "we'll be placing a small weight upon your head. You are expected to keep that weight balanced until we return in a few hours. I'll leave it to you cunts to figure out what happens if you let it fall."

The guards now went down the line placing a metal plate weighing about five pounds on each girl's head. Nicole stood up straight as the guard approached her and set the plate down, fiddling with the chains linked to her body as he did so.

"I know you're tired. I know you're in pain. I know you're ready to lay down and cry yourselves to sleep. That just makes this all the better time to test your discipline! Have fun!" the guard bellowed as he left the room.

And so the girls stood in silence, blindfolded, together, but alone with their own individual struggles. It only took about fifteen minutes for the silence to be broken. Tiny, with her short arms outstretched, struggled to maintain the height of the weights she held in her hands. Slowly, they sagged lower and lower until - click - the tension switch connected to one of the weights triggered. Tiny squealed in pain as a spark leapt up the chains connected to her tits. She jumped in surprise from the sudden shock, not enough to lose the plate she balanced on her head, but enough to jostle the bells clipped on her tits.

The jangling quickly registered with the noise sensor and twelve unhappy ponygirls gasped in unison as their labia received a sharp shock from the clips connected to them. This set off a chain reaction as a few other girls, distracted by the jolt, let their arms drop enough to shock their tits. Cries and squeals moved up and down the line as titty and pussy shocks passed from girl to girl.

Things finally settled down after a few minutes, that is, until all hell broke loose. Nicole had mostly weathered the initial chaos triggered by Tiny's mistake. She cried and winced along with the other girls as her pussy absorbed shock after shock, but still, she managed to keep the weights in her hands aloft.

Now, though, she could feel them getting heavier. Her hands were starting to sweat, making her grip more precarious. She decided that she needed to adjust her hold. Moving slowly and deliberately, she let the weight in her right hand slide closer to her fingertips. Then, when she made to do the same with her left, the ball slipped. She gasped in surprise and quickly moved her hand to catch it, but not quickly enough. The weight yanked hard on the chain it was suspended from and almost immediately she felt a blast to her tits. She recoiled in pain, loudly jangling the bells clipped to her piercings. Screams all around her joined in a chorus. More titty shocks were triggered by the other surprised pony slaves.

Finally, two girls behind her, she couldn't tell who, suddenly drowned out all the others with ear-splitting screams. Her immediate thought was that they must have let the weights drop from their heads. The absence of a clunk from the weight hitting the floor registered with Nicole and suddenly what happened became obvious - the weights on their heads were connected to the chains attached to their piercings! The girls who had just let theirs fall now had a heavy mass hanging from their tits!

Nicole stiffened in fear. All her focus shifted to the burden balanced precariously on her head. With the amount of chain needed to secure it to her ringed breasts, it would have a long way to fall before her piercings brought it to a sudden, painful stop. She was determined not to let that happen.

With the girls behind her whimpering in pain, the room settled down again. But every minute or so someone would cry out as her tits were shocked. Still, discipline improved - the girls got better at keeping their bodies steady as they suffered under the cruel jolts, so their pussies received fewer punishments. But it was only a matter of time. Nicole could feel her arms getting weaker. Her muscles burned as the seemingly insignificant weights hung awkwardly.

There was a scream ahead of her. Someone was shocked hard enough to jostle her titty bells. All the girls suffered in unison from a jolt to their pussies. This was immediately followed by more shrill screams - another pair of girls must have let their weights fall.

Nicole was just thinking it odd that the intense screams only happened in pairs, when another woman cried out in agony. She recognized this one as Chestnut. The ponygirl, still fresh from her lap dragging herself around the gravel track, screamed and screamed, vigorously shaking her tits as she suffered.

Nicole withered under the harsh electric agony searing into her pussy. Her muscles twitched and convulsed from blast after blast. She fought the urge to double over in pain. Then she felt it. The heavy weight atop her head slipped just a little. She sensed the shift in balance and twisted her neck to compensate. It wasn't long before her neck grew stiff. She knew she wouldn't last like this. She moaned in distress. Her arms wavered as she focused all her attention on the top of her head.

Then, zap! Her arms gave out and she gave herself the greatest shock yet to her tits. The sudden surge sent her head back. The weight shifted. She tried to adjust, but it was too late. The heavy steel plate slid down her forehead. She gasped in surprise, then an instant later shrieked in pain. The tumbling weight came to a sudden stop when the chains linking it to her breasts pulled taut. It felt like her tits were being ripped from her chest. Her knees buckled and her hands instinctively reached toward her suffering bosom, but this only ratcheted up the current sent to her tits.

Under this sudden onslaught, Nicole failed to notice the girl ahead of her screaming along with her. The reason why soon became clear because just as Nicole was recovering from her failure to balance her weight, the girl behind her let hers slip as well. Now the observation of why the intense pain seemed to happen in pairs became obvious when Nicole felt the chain linked to her labia clamps yanked hard!

Nicole reeled as her pussy lips twisted and stretched. The newly fallen weight hanging behind her wasn't just supported by that girl's breasts, but also by her own pussy! Indeed, every weight that had fallen punished not only the girl who balanced it, but also the girl standing ahead of her in line. Nicole struggled under the burden. Her legs felt weak. She so wanted to squat down and relieve the weight pulling hard on her labia, but her outstretched arms made that impossible. The best she could do was widen her stance. She felt both weights swing as she did so, the one hanging from her tits, and the other supported by her strained labia. Her suffering was complete. She cried in pain, helpless to do anything to improve her situation.

By the end of the first hour over half of the girls had dropped the heavy plate from their heads. A couple were blissfully unaware that the fate of their pussies lay in the success of the girl standing behind them, but others suffered the strain on their cunts while they fought to retain their poise.

Nicole's arms were dead. She found it practically impossible to keep the weights beside her fully raised anymore. The best she could do was prop them up as they dangled partly from their chains. This left her tits suffering under a constant flow of electricity which waxed and waned in intensity according to how much she was able to lift her arms at any given time. At least the heavy weight hanging from her breasts kept them stretched towards the floor and made it less likely to ring the bells on her piercings. But the same didn't apply to the other girls. Their bodies trembled as they fought their losing battles. The pussy shocks were becoming more frequent.

The sounds of misery were interrupted by the return of the guards. "Well, well, well, cunts. I didn't think any of you would make it this long. I'm impressed," Achilles said, "but I'm also ready to call it a day and you bitches are getting in the way of that. I forgot to mention before that the last Omega standing gets to be an Alpha tomorrow, and I'm deciding now that the next Alpha to drop her weight will be an Omega."

A few of the girls whined in protest, presumably the remaining Alphas who would have benefitted by failing already, or perhaps some of the Omegas who had already lost. Nicole breathed a sigh of relief. She'd secured her promotion earlier by winning the race, surely they'd still honor that, right?

"Since I'm ready for dinner, I've come to help hurry things along." Complaints ceased at the sound of the guard unfurling his horsewhip and taking a test swing.

Swish! Crack! A girl ahead of Nicole wailed as the whip connected with her. Swish! Crack! The next girl in line cried out in surprise and pain.

The guard moved down the line. Was he only whipping the remaining girls or everybody, Nicole wondered. Swish! Crack! Her backside erupted in pain, answering her thoughts. Nicole squealed and lowered her arms, adding extra pain in her tits to that of her stinging ass. Swish! Crack! He struck the girl behind her, causing the weight they shared to swing, tugging at her poor, stretched labia.

He got his desired outcome as he went farther down the line. One of his blows was enough of a distraction to cause a weight to fall. A pair of girls screamed in total agony as they suffered together from the failure. But, for the remaining Alphas, they couldn't tell if the loser was one of their own or not - they had to hold out longer, just in case, if they wanted to avoid becoming Omegas.

After reaching the end of the line, the guard started again at the front. This time he lashed at their tits. Each strike violently jangled their bells, dispensing suffering all up and down the line as their pussies absorbed shock after shock. A couple more girls failed before the guard reached the end of the line this time. This pleased him enough that he worked on their tits during the next and final pass. Just as he made it to the end he got another weight to fall, with another poor ponygirl crying out in pain.

"At last," the guard said, exasperated, as the final girls wailed in agony. "Congratulations, Jangles, you're our new Alpha."

He now went and removed each girl's blindfold. Nicole blinked away the tears in her eyes and took in the room. Ahead of her and behind her the other slaves all trembled and wept along with her. She glanced down at her poor tits, appalled at how they sagged under the weight that hung from them. She saw how cruelly that same weight tugged at the pussy lips of Blondie in front of her and worried for her own aching bits.

The guard removing the blindfolds saved Jangles for last. A sinister smile crossed his face as he unbuckled the item. "Oops," he exclaimed as he pulled it away, intentionally knocking the final weight that balanced atop her head. Nicole watched as the heavy plate toppled, coming to an abrupt stop at the end of the chains. Jangles cried out in surprise, then screamed in pain. Her tits stretched, then seemed to spring back as they reached their extreme. Ahead of her Tiny, still blindfolded, erupted as the other ends of the chains pulled tight, yanking hard on her pussy lips. Her knees buckled and she dropped her arms, blasting her tits with electricity and multiplying her suffering.

Her screaming and suffering lasted along with the other girls right up until a guard threw a heavy switch on the wall and shut off all the electricity to the slaves. Every girl in unison dropped her dead arms in relief. Nicole picked up the heavy weight hanging from her breasts. A quick flash of the horsewhip corrected her though.

"Hands behind your heads!" a guard barked. She ruefully set the weight back down and complied. "Time to turn in."

The guards didn't unchain them as they marched back to the barn. The girls squealed and suffered as they ambled along in a line, connected by their pussies to the tits of the girl behind her. It wasn't until they were lined up in front of their stalls that they were finally freed of their burdens.

Nicole was exhausted and eager to turn in for the night. Chestnut and Jangles were not so lucky. The unfortunate pair had been chosen to spend the evening entertaining the guards. Phoenix came up behind Jangles and grabbed onto her butt plug. He gave gave it a good wiggle as he said, "I believe I owe you a good assfucking for losing me the race earlier. Jangles moaned in despair and was hauled off along with Chestnut while the rest of the girls were put away for the night.