"Good morning, Devon! It's Thursday, it's 6 o'clock, and it promises to be a bright and beautiful morning! Welcome to Radio Devon and, for the next three hours, your host, Dave Cheetham!"

I woke to the tinny sound of a transistor radio playing some awful record made before I was born and sat up, groaning as pain shot through me from my aching back and sides - the straw bed had not been as comfortable as I had thought when I first lay down the night before. I went to brush the hair out of my face and bashed myself on the nose, having momentarily forgotten that my hands had been transformed into a hoof. Sleepily, I stood up and staggered over to the door, peering out into the still-gloomy stable.

The three grooms were bustling around the place, doing something or other, I don't really know what, and then Chloe walked over to my stall.

"Good morning, Bright Eyes," she said as she unbolted the door and took hold of my bridle, "I hope you slept well and are ready for a busy day!"

She led me out of the stable and over to a frame with posts about ten feet apart and a bar across the top a couple of feet above my head. She lifted one of my arms and used the clip on the strap around my forearm to attach it to the bar, then repeated with the other arm, leaving me standing there with my arms in the air, simply but securely restrained.

A couple of minutes later, Scheherazade and Scarlett were also brought out of the stable and fastened to the bar alongside me. I tried to look around at them, to give them some sort of morning greeting, but the constraints of the collar and the blinkers meant that I couldn't make eye contact with either of them, and had to just stand there and wait to see what happened next.

Chloe came back and, to my surprise, began to strip the harness off me. She pulled out the butt plug holding my tail, and I let out a squeal as my poor little sphincter was stretched painfully and then tried to close. I felt a sudden urge to empty my bowels but, clenching my buttocks tightly together, I managed to resist it. Once she had removed the body harness, Chloe then took off my bridle.

"Now, remember," she said sternly as she unbuckled the collar around my neck, "ponies don't talk, regardless of whether wearing the collar or not." She put the tack, including the collar, onto a table a little way away, alongside that which had been stripped from the other ponygirls, then went back into the stables for something.

I stretched my neck, feeling relief that it was no longer so restricted in movement, and looked over at the other girls, who were doing much the same. Scheherazade smiled at me and blew me a kiss.

"Hi," I whispered, "I'm Sarah. What's your name?" Rather than answering me, she looked horrified and tossed back her head, letting out that whinny that she seemed to have perfected.

Suddenly, Chloe came stamping out of the stables and straight up to me. Feeling rather frightened and intimidated, I saw that she was carrying a riding crop.

"Bad pony!" she shouted, and whacked me hard across the buttocks with the crop, "ponies DO NOT talk!" She hit me again and I squealed in pain. "I don't know whether you are disobedient or just stupid, but if you can't keep quiet, I’ll have to keep you quiet, won't I?"

She thrust the crop into her belt and took something from her pocket. It was a piece of rubber with a short tube and a small bulb attached. She forced the rubber, not too gently, into my mouth and began squeezing the bulb. The rubber was actually a small bladder which was now expanding rapidly, completely filling my mouth and forcing my jaws apart. Now I couldn't breathe, never mind talk, and I began snorting rather desperately through my nose, alarmed by her abrupt and rather violent treatment of me. She let go of the bulb, which hung near my chin, and went back inside. I looked over at Scheherazade, but rather than showing me sympathy, her expression was one of disappointment, as if saying ‘well, that serves you right!’

A few minutes later, all the grooms came back out, and each was carrying a large plastic bag full of a clear liquid. Chloe hung the one she was carrying from the bar just beside me and, with the long tube hanging below it, it looked like an oversized saline drip. It wasn't until I saw her putting lubricant on the nozzle at the end of the tube that I began to suspect what it was really for.

My suspicions were confirmed when she pushed the nozzle into my anus and then turned the tap at the bottom of the bag. I had the weird feeling of luke-warm water rushing into my rectum and quickly filling my bowel until I became painfully full, and my lower belly began to bulge out. I felt a desperate urge to urinate as pressure was applied to my bladder, and I had to fight to keep it in. However, when I looked to my side to see how the others were coping, I saw that Scheherazade was, without embarrassment, spraying the ground in front of her with a steaming golden arc! Realising that being embarrassed about pissing on the floor was pointless, and not something a real pony would do, I let go and felt the relief of pressure as my pee splashed into the dirt.

The stable girls busied themselves with other jobs for about a quarter of an hour, as I became more and more uncomfortable. I watched as they cleared out the old straw from our stalls and replaced it with fresh - nice to know we get clean bedding every day, I thought, the very least I would expect from a five-star hotel!

I was really grateful when Chloe returned, placing the bucket she was carrying on the ground between my legs. Without a moment's hesitation, she pulled the nozzle out of my arse, and the urge to evacuate my bowels was overwhelming. Due to my upbringing since I was in nappies, I tried to hold it in, but it was only a matter of seconds before I heard the liquid hitting the bottom of the plastic bucket. The smell was pretty disgusting, and it was obvious that there was a lot more than just water coming out of me.

Again, the relief was enormous and, when the flow finally stopped, I felt so much better and, somehow, cleaner inside. But then I felt the nozzle being forced back into me and realised that the enema was not yet finished. The bag hanging beside me was still half full, and water once more flowed into me. As the bag emptied, Chloe squeezed it until she had forced the last drop out of it and into me.

After another rather uncomfortable wait, the enema was released and Chloe took the smelly bucket away. One of the other girls moved down the line with a hose and gave us each a thorough soaking with icy-cold water, leaving me shivering and, with my hair lank and dripping, feeling like a drowned rat.

I was immensely relieved when Chloe deflated the bladder in my mouth and removed it so that she could clean my teeth. She then shampooed and conditioned my hair, before lathering me up with a soapy sponge, cleaning away the stale sweat and grime of the previous day, and the splashback from the earlier toileting. Then the other girl came back with the hose and rinsed me down.

Chloe dried me with a towel, before putting my damp hair up into the high ponytail, applying sunscreen to every inch of my body and then dressing me in my ponygirl tack once more. I braced myself when it came to reinserting the butt plug, but it wasn't as bad as the first time - I guess my poor little sphincter was getting used to being stretched all out of shape.

After what felt like hours of standing under that rail, we were released and taken over to the paddock. Breakfast was served from a bucket into the trough, just like the previous evening's dinner and, once again, it looked like we were receiving the scrapings from the guests’ plates or the leftover food from the buffet. There was a mish-mash of eggs, bacon, sausages, beans, tomatoes and mushrooms, along with cereals like muesli, cornflakes and nut clusters, as well as fresh fruit chunks, all swimming in milk.

I got down on my hands and knees and, rather tentatively, began to nibble away. It seemed that somebody had been eating pancakes, because there was the distinctive taste of maple syrup over everything. Once I’d got over the bizarre nature of the situation - three supposedly grown-up women on their knees in a field, eating waste food out of a trough - it was perfectly palatable, and I found myself wolfing it down.

Once we had finished eating, the three of us turned to each other and did our best to converse, without anyone actually speaking. The communication generally consisted of smiles, winks, blowing kisses and waving arms, but it seemed to work, and passed the time. Scarlett seemed much more friendly than the previous evening, even rubbing cheeks with me. Maybe she felt a bit left out before, with Scheherazade and me getting on so well, but we were all now best of friends again, so that was good.

We didn't have to wait long before the stable girls came over and, after restraining my arms as before and inserting the bit between my teeth, led us out of the paddock. At this point, Belle rejoined us, once more in her pony gear, looking bright eyed and bushy tailed, having presumably enjoyed a comfortable night and a pleasant breakfast. I envied her, not only for that but also for the nice warm shower she would have had, even the use of the toilet, rather than having to pee on the grass and shit in a bucket! The whole thing had been rather uncomfortable, very humiliating, and strangely erotic. On reflection, I wondered just how much I did envy her…

The morning’s training session was very much the same as the previous afternoon - walking, stepping, trotting, cantering, galloping - except harder, and for longer.

It was a sweet relief when we were led off the field and back to the paddock, the sun now high in the cloudless sky. Belle was led away once more, no doubt for a relaxing lunch, maybe by the pool. In one way I was jealous, but in another I felt that she was missing out on so much of this wild experience. Maybe she is just into the dressing up and the exercise, I thought, but I knew it was so much more to me and, almost certainly, to the other two.

I was sweating profusely, and a little bit dizzy from the heat, and I gratefully ducked my face into the trough of water as I drank as much as I could. I was disappointed to see that the food trough was empty as I was feeling quite hungry and, leftovers or not, I would have been more than happy to ‘trough down’ on it.

One corner of the paddock was under the shade of a large oak tree, and the three of us retreated under it to get out of the blazing sun. As we sat there, my eyes almost inevitably wandered over to my beautiful black companion but, even though I was having naughty thoughts about her, I was still surprised to see her sitting with her legs wide apart, lazily playing with herself, rubbing her hoof-glove against her crotch! With her amazingly muscled, ebony body glistening like latex from the sunscreen and sweat, I found myself almost drooling with pent-up desire for her. I still didn't think of myself as a lesbian - I fancied boys, I couldn't be a lesbian! - but I couldn't deny that I had the serious hots for this particular sexy beast.

She smiled when she saw me looking at her, and crawled over to me with a wicked look on her face. She pushed me onto my back on the ground, pinning my arms with her shins and, still smiling in total confidence, lowered herself until she was sitting on my face. I needed no prompting to start using my tongue on her clitoris and pussy lips, licking her around the leather strap covering her vagina. She began to rock back and forth, smearing her juices across my face as I worked hard to make her cum.

What happened next took me completely by surprise, and was totally amazing. I felt something cold and hard on my thighs, and I realised it was the metal of horseshoes touching me, pushing my legs apart. I assumed it was Scheherazade, but then - oh my God! - I felt a warm, wet tongue lick my little bud! It had to be Scarlett, and suddenly we were having a girly three-way! I thought I might cum right there and then, just from the excitement, but I managed to control myself, just a little, and could then enjoy the enthusiastic work of the redhead. Her efforts made me redouble my own as I strove to bring the woman riding me to the peak of excitement.

After a couple of minutes, Scheherazade suddenly disengaged herself from me, but it was only so that she could turn around, now facing down my body, and she pushed her wet pussy lips down onto my mouth again. I heard her making some noises and then Scarlett also repositioned herself, before resuming licking me so delightfully. As the stifled noises and squirming above me increased, I realised that Scheherazade must be licking Scarlett's pussy, meaning that all three of us were giving and getting the most amazing sensations, all at the same time!

It would have taken an unbelievable feat of organisation for us all to cum at once, but we weren't that far off. I think I came first, but it only spurred me on to greater efforts, and Scheherazade quickly reached orgasm. Scarlett was last, but only by a matter of seconds, half a minute at most. The other two fell away from me onto the grass and we all lay there, gasping for breath and enjoying the moment.

Once I had actually come back down to earth, I lay there just looking up at the leaves and branches above me, trying to come to terms with what had just happened. I tried to rationalise my feelings about this whole ponygirl thing, about the women around me, about sex, but eventually I gave up and decided to just enjoy it and let whatever was going to happen, happen.

I assumed that the afternoon training was going to be the same as the morning, but how wrong I was. We were led away to a different part of the field, and what lay before us was daunting, and a little frightening. It was a fully blown showjumping course!

When I got over my shock, I could see that it was actually specially designed for us ponygirls rather than, as I had first thought, one for real horses and ponies. The jumps were much smaller, and the rails much thinner and lighter so that, if they were hit, they would not necessarily trip up the pony. But in terms of layout, colour and design of the fences, it looked just like the real thing.

"Okay, Bright Eyes," Chloe said quietly and calmly as she attached leather reins to either end of the bit in my mouth, "you're going to go first. Don't worry, I'll be there to guide you around the course." Somehow, I didn't find this news particularly reassuring, and I could feel my heart pounding in my chest.

Pulling gently on the reins, she led me until I was standing in front of the first jump. Three red and white poles rose just a couple of feet off the ground - it doesn't sound too dramatic and, under normal circumstances, it would represent no challenge at all, but wearing heelless hoof-boots, it scared me witless. I was rooted to the spot, and I looked pleadingly at my trainer, silently begging her not to make me do it.

"Come on, pony," she said patiently but firmly, pulling the reins forward, "jump!" I tried to resist, but Chloe was now standing on the other side of the fence and was dragging me towards it. I knew I had no choice…

With a strangled squeal, I lifted one foot over the barrier and pushed off with the other, leaping into the air. My leading foot came down and, much to my surprise and relief, my ankle did not twist, and the horseshoe didn't slip on the ground. Suddenly I had both feet back on the ground and I was on the other side of the fence, still upright, still in one piece!

"Well done, Bright Eyes!" Chloe exclaimed excitedly, patting me on the back, "well done! Okay, let's move on to the next one." I thought jumping one fence was quite enough, but I didn't really have a choice but to do as I was told.

The second fence was a little higher, but I had gained enough confidence from clearing the first hurdle that I jumped over it with barely any hesitation. I cleared three more without a hitch, all about the same height, and I was starting to enjoy this. But then I faced another challenge.

Fence 6 was what they call a combination obstacle - two rails had to be cleared in quick succession, with only enough room for a single step in between. But, by now, I was seeing the fences as a challenge rather than something frightening. I gathered myself, took two rapid steps forward, and jumped the first obstacle. My foot touched down and I immediately pushed off, leading with my other leg over the second half of the jump. I just cleared it with both front and trailing hoof, and then I was back on the ground, breathing heavily and sweating, but receiving the praise of my trainer, which I found surprisingly gratifying. I'm a good pony! My trainer says so!

I jumped another couple of fences relatively easily, and I could see that I was nearly at the end of the course, just a couple more fences and I would have a clear round, and that thought spurred me on, not with a sense of relief that I would have survived, but with the knowledge that I would have achieved something which my groom would be proud of. Bizarre!

But it wasn't going to be that easy. The last but one fence was, I could now see, a water jump - a relatively simple rail fence, but behind it was a trench, 6 to 9 inches deep and about a yard, maybe less, wide, filled with water. I would have to leap over the water if I was to clear the fence.

I clamped down on the bit in my mouth and gathered myself. Chloe, knowing that I was now fully into this, held the reins loosely, no longer having to prompt me. I took a short run-up and leapt as far as I could, feeling like I was soaring into the void. Almost in slow motion, I reached the zenith of my jump and then began to descend, but I could see that I was going to be close, but agonisingly, just short. My hoof splashed down into the edge of the water and I squealed as my legs started to buckle underneath me. But I managed to recover and get both feet on dry land.

"Oh, good effort, Bright Eyes," Chloe said soothingly as she stroked my shoulder, "so close! Don't worry, you'll get it next time." Despite my disappointment, I knew she was right - I could do it, and I would do it, I was determined. I almost wanted to turn back and try again right there and then, but I knew that's not how this worked. I had to complete the course, and maybe I would get another chance later.

And so to the last obstacle which, to my consternation, was a triple - three fences in one! I took several deep breaths, and then went for it. I cleared the first fence easily, landing on my right hoof and bouncing up and over the second part. Except that I didn't. The front of my hoof-boot caught the top rail and sent it flying. My trailing foot then caught the next rail down and knocked that one off as well. Thrown off balance, I stumbled as I landed and, despite all my efforts, I could not take off properly. I tried to get my legs sorted out, but I crashed straight into the third element of the jump, knocking the entire structure over, sending rails flying in every direction, and me sprawling on the grass.

Chloe helped me up, wiped the soil and grass cuttings off my sweaty body, and led me back to the others. I felt like a complete failure, but I could see that Scheherazade and Scarlett were smiling, and the other trainers praised me for my efforts and skill in clearing so many of the fences on my first attempt. As Chloe continued to stroke me, her hand moving down my back to my buttocks, I gradually started to feel better about myself, and I also started to really enjoy her touch!

It was Scheherazade’s turn next, and I watched her with interest. She was magnificent! She looked so elegant as she cleared the jumps with ease, and she completed the course with a clear round, no problems. As she walked back towards us, she was barely out of breath, and she held her head high and proud as her groom brought her in. I didn't feel any jealousy, only happiness and pleasure that she was so good. I gave my best impression of a whinny in appreciation and acknowledgement of her prowess.

Scarlett didn't have such a good round. She fell twice and had three fences down in all, as well as a foot in the water. But, as she came back to our starting position, she was smiling and rolled her eyes as if to say ‘what am I like?’ I was so impressed with her attitude, and she received warm and heartfelt compliments for her effort. Scheherazade was also allowed to go up to her and pressed her body against her - our equivalent of a warm hug.

Belle was last to go. She started off easily enough over the first few fences, and then approached the combination jump but, to my surprise, she was led around it by her handler, before continuing with the following normal fences. She carried on until she reached the water jump, but then just turned for home and came back to us. It seemed as though she had been spared the difficult parts of the course, and I wondered whose decision that had been - was it the stables’ policy not to allow part-timers, as I thought of her, to try anything too risky, or had it been discussed and agreed beforehand with the woman/ponygirl? Whatever the reason, I felt that she was missing out on the challenge, and the fun, that sense of achievement at accomplishing something you didn't initially think possible.

My second time around the course didn't go well. I think I must have been concentrating on the difficult jumps to come, because I knocked off the top rail of two of the simple fences which I had cleared quite easily first time around. And then I still had a foot in the water and clattered the triple combination at the end. Definitely not my finest hour!

By the time I started my third attempt, I knew I was getting tired. My muscles ached and I was struggling to lift the heavy hoof-boots to get them over the fences. Suffice it to say, I did not go clear.

"I think you've had enough for one day, pony," Chloe said as we returned to the start. I knew she was right, but it still rankled and left me with a feeling of defeat. "Never mind, you can try again another day." A little bit depressed, I trudged back to the paddock with the others.

Dinner was the same as the previous evening and, afterwards, we were all too tired to do anything but sit and doze until we were taken into our stalls. Remembering my discomfort from the morning, I pushed as much straw as I could together to plump up my ‘mattress’ before lying down to sleep.

As I drifted off into the land of Nod, images, thoughts and feelings of the day ambled through my tired brain, gradually lulling me into a warm and contented slumber. Despite the weirdness of what I was experiencing, I was loving every minute of it!