Olivia slowly emerged from the deep sleep she had fallen after dinner and a few rounds of drinks. Fragments of the past evening were returning to her, but she couldn’t distinguish yet reality from dream.

Her hostess, Rebecca, a University schoolmate, had invited her to spend the weekend at her country house together with other girlfriends.

It was in total eight of them, and what had surprised her when she had arrived was how similar all of them looked: like Olivia herself, not only were gorgeous young women, but they all matched a similar type: tall, slim, but at the same time with round, feminine buttocks and large, pneumatic breasts.

As the dinner progressed, there was no doubt of their inclinations. There was barely any talk of boys, longing looks were exchanged, and caresses were casually given.

Olivia wasn’t a lesbian, but she couldn’t deny that the beauty of the other girls was tempting and that this seemed to be the perfect situation to try something new.

She knew only Rebecca, and even she had been, so far, only a casual acquaintance made during classes and at the library. She had been surprised to have received this invitation, but, of course, she had accepted without hesitations; she wasn’t familiar with the small university town and so far hadn’t met anybody truly interesting.

While their looks were so similar, she had a strange feeling, as if the girls belonged to two separate groups. Rebecca, Joan, Miriam, and Yumiko seemed to know each other better and were more assertive.

All the girls wore provocative clothes, mini skirts, and tops with deep cleavages, but theirs were slightly less daring and all the clothes were branded.

The other three, Gisella, Laura, and Claudia, seemed meeker, more inclined to please the other four.

They wore flimsier clothes that seemed cheaper, sluttier versions of what the others wore. They were the ones serving the drinks and they seemed to be on the receiving hands of the caresses.

In truth, nothing was so explicit. Everybody was eating and drinking, chatting and having a good time.

While incoherent images continued to flow in Olivia’s half-asleep mind, a sequence emerged: a hand was sliding over Gisella’s thighs.

She tried to stop it, but the hand didn’t care, and pulled up her skirt, higher, until the plump folds of her pussy appeared, a perfect shaved camel toe. Everybody laughed, and the blushing Gisella looked straight in her eyes.

Maybe it was just a dream: it was true that she had been attracted by the dewy, large black eyes of the girl, who seemed so willing to look for approval from everybody. What she was sure of was that at a certain point she had disappeared with Yumiko, and they hadn’t returned.

Now, lying in bed, she felt a tingling between her legs. In the dream, she was naked now, and her hand was trying to reach her clit to satisfy her desire. Yet there was a force that didn’t let her hand reach it.

More she tried, more the force denied her, then more she felt excited. She imagined herself kissing Gisella’s ruby lips, caressing her black, thick hair and she imagined the shy, cute girl giving in to her.

It was like a cool breeze was caressing her body, making her nipples hard. Maybe she should pinch them…

Gisella’s image faded away in the dream, but the feeling of being unable to touch herself remained, and the sensation of lying naked too.

All of a sudden, shocked, Olivia opened her eyes.

She was naked! And her wrists and calves were tied through slip knots to hooks on a cement ground! The more she tried to free herself, the tighter the knots became.

She looked at the room: it was completely bare, with unpainted walls, and wooden windows through which the daylight filtered.

A plastic basin and a smaller metal one were next to her.

She could feel a finger now unfolding her pussy lips and teasing her clit, still engorged by the wondered of Gisella.

“Good morning Olivia! It seems you had pleasant dreams! But now it’s time for your training to start.”

That was Rebecca’s hand and this was her voice.

“Let me go!”, she cried.

“Don’t be silly! The fun starts now!”, answered her captor, smiling.

What was happening here? Suddenly she realized that, of the seven girls, four seemed to be on the dominant side, and three on the submissive one. So she was the one who had to fill the missing spot…what was the training she was talking about? she was no submissive! On the contrary, she had been attracted by the obedient Gisella.

“This is a mistake!” she cried again.

“Well, we have a whole weekend to verify that, isn’t it?” replied Rebecca suavely, continuing to tweak casually her clit.

Tied and naked, still aroused, Olivia had to accept that she was powerless.

The confused and helpless girl had no choice but to accept that in her current predicament her only possibility was to obey.

“Look at you!”, continued Rebecca, plunging four fingers in Olivia’s pussy, separating the labia aside. “You are so wet, would you like a nice cum to start the day?”

“No!”, replied the girl, noticing how her tormentor’s clothes: a simple blouse, whose buttons seemed to explode in the difficult task to keep her full breasts covered, a short black leather skirt, but in particular the shiny black boots, just below the knees, and the round rigid cap with a peak. A leather riding crop was next to her, on the floor.

“Aaah!”, she squirmed – Rebecca hadn’t taken no for an answer, and was continuing working on her clit and pussy, with confident determination.

Yes, she was dressed like a horse rider, she wondered, while her orgasm, in its stupid disinterest for her situation, was taking over.

However, there were no horses on the farm, so…

“I knew you were a slut, but I didn’t expect you to get so drenched…”, continued Rebecca, while Olivia moaned softly in shame, careful not to move too much to avoid the knots to tie her even tighter.

Now she heard the sound of steps coming and turned toward the door: by now she should have guessed it, but still, she was shocked by Gisella’s and Laura’s appearance.

They were both completely naked, with a leather collar with a metal ring around their neck, tight booths that reached half thigh and ended in wooden hooves; a short bamboo stick was used as a gag, and their mouths stretched uncomfortably. She already knew that Gisella was completely shaved, and now she saw that also Laura was completely bald. Gisella’s boobs were large, but still a bit smaller than hers, while those of the darker girls were truly enormous, dangling like partly deflated balloons from her chest.

They moved swiftly, curtsying slightly toward Rebecca, and then they kneeled next to Olivia.

“You know what to do…she must be ready, clean, fed, hairless, and harnessed, in 45 minutes sharp!”

“What is this?…mmmmppph”, Olivia’s words ended in her mouth, because putting the same bamboo plug was the pony girls’ first operation, which they performed, of course, without asking for permission.

Using a razor and a basin full of water, they started shaving her lower hair: first, they cleaned the mound, then Gisella pulled slightly up her pussy lips so that Laura could do a better job with the razor.

Olivia was mortified: she had at all times disliked her intricated, meaty labia.

But soon this step was over, and now the two girls proceeded to clean her with a sponge. After that, they untied her legs one by one, pulled a pair of hoove boots, like theirs, and finally, they tied two leather belts one below and one above her boobs, which were squeezed and pushed forward. They untied her wrists too, but only for a short moment, just the time to make her stand, before they pushed her arms behind her back, and were handcuffed to a leather strap glove, making them unusable.

While Laura was holding her by an arm, Gisella poured milk and cereals into the plastic bowl, then she untied her bamboo gag.

“What is this? Am I supposed to eat it from the floor?” Olivia snapped, angry. “Ah!Ah!”, two blows landed on her ass and made her swing dangerously on the hoove boots.

“Of course! Of course!” she immediately replied and knelt in front of the bowl, eating its content, without caring if her face became dirty with crumbs of cereals and milk.

Holding her head into the bowl, Laura made sure that she made it sparkling clean, then she raised her by the hair and Gisella secured once more the gag, after she had cleaned the mouth.

But the routine was not over: Laura made her bend again pushing her by the hair, this time making her squat, her knees high, her legs wide open. Gisella pushed the steel bowl between her legs.

Olivia looked at the two girls with her eyes brimming: there was no way she was gonna pee in this way!

Gisella squatted next to her and looking at her in the eyes pressed her tummy. She felt a familiar stimulus but still resisted. Gisella pressed harder, staring at her, with her large, gorgeous eyes, to which nothing could be denied.

She felt a shiver, and she understood that her resistance couldn’t go on forever.

Lowering her eyes, she let the first drops hit the basin, and then the flow of her pee became uncontrollable.

Pulling up her chin, Gisella forced her to meet her triumphant look; this was one of the many lessons Olivia learned: shame was not allowed here.

It was again Gisella who cleaned her, but then when she wondered that she should be allowed to stand she pushed her face to the floor. Behind Laura raised her ass, and soon she felt something pushing against her anus, and then a flow of water entered her.

She tried to rebel, shaking her ass, but the funnel was probably deeper inside her than she wondered, so her attempts were futile.

Under the concerted effort of the two pony girls, the water continued to flow inside her, until she felt her belly bloated and heavy.

For a moment there she felt a certain tenderness: she felt Laura’s hands caressing her globes, and Gisella too was caressing her cheeks.

That kindness couldn’t hide the fact that her body was full of water now, and she had to expel it, not only, she was gonna do it in front of these two girls whom she had met yesterday for the first time.

The water was gonna be mixed with her shit, and they were gonna smell her feces: she couldn’t imagine anything more humiliating.

She started shivering and sweating, probably it wasn’t just water that they had pushed into her, but some chemical that made stronger the spasms that led to evacuation.

Violating once more her sense of shame she looked into Gisella’s eyes, asking silently to unplug her anus and let her humiliation be complete. Gisella smiled at her and caressed once more her belly as if she was appraising her readiness.

Then she nodded to Laura, who pulled out the stopper.

Shit and water flowed at once, accompanied by foul sounds and odors. In the beginning, they exploded out of her, and then they trickled, in gulps. Then again, a stronger stream returned, but shorter than the first. These loops continued for a while, weaker and weaker, Olivia struggling with her body, crying slowly not in pain, but frustration.

This ordeal ended too, Laura cleaned her ass, then secured two belts where the thighs meet the waist, and pushed a new plug inside her. It was wider and longer than the first, made to stay wondered Olivia in horror, and then she realized that hair was brushing her legs: it was a tail plug!

Her transformation into a pony girl now completed, she was not ready to advance to the next stage of her training; Laura snapped a leash to the collar ring and led her outside. It was a gorgeous sunny day-

The house was not far, and she remembered looking in this direction the day before. She had seen carts next to the stables, and foolishly she had wondered that today she might have enjoyed a ride.

Yes, she was gonna have a ride today, but she was gonna be the horse pulling the cart!

They didn’t need to wait for long for the return of Rebecca.

She examined Olivia carefully, making some questions in the meanwhile, and then squeezed hard her boobs, pressed already between the straps.

“Mmmh…honestly better than I imagined…and this pink, large areolas…an unexpected bonus! Olivia and I are going to have some fun together…Miriam and Yumiko are still sleeping…I guess you’ll have to wait for a while, they asked me to make sure that you wait for them!”

Now Rebecca took a thick, long twisted rope, which looked rather rough and secured it to a picket of the fence.

Then took the other edge, passed first into Laura’s collar hook, then between her legs, splitting her pussy in half, and then continued pulling the rope through Gisella’s collar hook, between her legs, and with a last pull that tightened the rope and made the pony girls shriek, she finally secured the rope edge to another picket. Each time Rebecca had pulled the rope in between the legs, the girls had mumbled noisily behind their gas, her face contorted in pain.

Olivia didn’t envy them: if each of them was moving, not only purposedly but also accidentally the rope would bite into the tender flesh of their pussies, generating excruciating and lasting pain.

Leading her by the leash, Rebecca led Olivia inside the fence. She moved with some difficulties, with the arms tied on the back, and with the uncomfortable hoove boots, she struggled to keep the rider’s pace.

“Stop there!” Rebecca ordered and moved a couple of steps forward until she was at the center of the fenced space. Between her and the other girl, there was now the full length of the leash.

“Run around me, as fast as you can! Quick!”. Before Olivia could react, she snapped a long, thin whip and hit her ass.

“AHH!” shouted the girl, but keen to avoid further blows she started running in a circle around Rebecca.

If she wasn’t directly hitting Olivia, she was hitting the ground, impatiently and this scared the pony girl even more than the blows. “Faster, fat slob!” “I am not fat!”, Olivia wanted to shout. She had a healthy lifestyle and she went running every day, but how could she reply?

She continued running, sometimes almost tripping on the high hooves and hence receiving the stinging bite of the whip. She

wanted to ask for mercy, but of course, with the bamboo plug, there was little she could say, so she continued putting her best effort, occasionally cursing her large breasts, that bounced in front of her. This lasted for at least one hour, under the sun, until she felt that she didn’t care how hard Rebecca was gonna hurt her, she couldn’t take it anymore, she could only kneel on the floor, rivulets of sweat running through her body, and await her destiny.

“Very well, lazy slut! The cowboy talks of breaking a wild horse, but you didn’t need any breaking, it seems you have been looking forward to pulling a cart all your life!”, commented Rebecca laughing, and Olivia couldn’t do anything more than lowering her head, exhausted and unable to react.

“You can rest now, here is some water….” said the girl that had quickly become her mistress, and untied the plug, putting a bowl full of water on the sandy ground.

Meekly the freshly made pony girl knelt and lowered her head to drink. “Thank you, Miss Rebecca!”

“I think this is the beginning of a beautiful friendship — replied the rider, fondling her ass, in a gesture of ownership — we will make sure that these lean, muscular buttocks will always stay this way!”

“Stand up now! I think you have learned how to control your hooves, now it’s time you learn to pull a cart…after all, this is what you are here for, isn’t it?”

“I… DON’T! ” is what Olivia wanted to shout, but she was sure that this won’t help her situation.

Without saying anything, the eyes low, she let Rebecca put a new gag, made of rubber, which was part of a more elaborated head harness, which included fake horse ears and blinders.

Then she was taken in front of a two-seater cart, with the cover and the sign “Taxi” on top.

“Ahahah…Are you alarmed, Olivia? As you can see the estate is quite large, and my friends and I sometimes need to be taken from one place to the other…well, once I had to be taken to the train station in a hurry, it’s about five kilometers from here…I don’t know if the poor pony girl was more exhausted by tiredness or by being seen by perfect strangers…”

Now some of the large metal rings that were suspended to the belts and harnesses made sense: they were connected to other rings and belts which were attached to the tugs. Once Rebecca had finished fixing them, Olivia had the strange feeling that she had been made one with the cart and that she couldn’t make any small movement without producing a reaction on the vehicle.

With the blinders, her vision was quite restricted — not knowing what was going around her was disturbing, and she didn’t like to be forced to stare at the road ahead either.

For a while, it looked like nothing was happening, and she couldn’t see Rebecca around her. Even if she tried to turn her head, her field of vision was so limited that she could be simply moving around her and won’t notice.

About ten minutes passed, under the sun. Olivia remembered those horses that waited quietly, in some old cities, to take tourists around, aware that there was no feasible alternative.

She didn’t have that patience yet, the sun was burning, the harness was pulling her here and there, and then the metal parts weighted unpleasantly on her body.

She shifted her foot nervously, and after a few minutes more her rider arrived.

Rebecca had changed, and was wearing now a black long dress, matched with boots and a hat; Olivia couldn’t help but notice that she looked gorgeous and…well…dominating.

She sat on the cart, tapped the pony girl lightly with a riding crop, and ordered: “Let’s go, girl!”