The great day arrived.

That morning, Blaise entered the box just before dawn to awake the filly. But she was already awake. Curled up in a corner of her box, attached by her nose-ring, she was all-agog with the excitement of this great day, which was going to make her a star. Blaise took her out and left her to do what was necessary and then washed her under the hose just like any other morning. Today, however, he spent some time with the rough towel to give her a rosy glow, and with the brush to smooth her long mane which now grew down to the nape of her neck where it was allowed to grow longer to hang down her back. Finally he carefully perfumed her, a sign that it was a red-letter day. She was going to wear her parade harness. The leather harness was the same but the head straps were decorated with precious stones, horse brasses and ribbons.

Blaise made her bend forwards and part her thighs. He then pressed his finger furnished with petroleum jelly into her anus and worked in and out to distend the entrance. Then Louise felt him pressing something hard and of large diameter against her anus He turned it and then brutally forced it into her causing a moan of pain from her. Louise could not see, but felt, in addition to the pain in her behind, a caress along her thighs. In fact, Blaise had collected her long hair when he had cut it, leaving only her mane, and had made from it a long tail, which he had attached to a similar device to the apparatus, that they had used at the convent to enlarge her anus. Turning the small screw, which actuated it, he increased the volume of the device so that, even at the gallop, it would not slip out of her.

Thus harnessed, she looked splendid. Her muscular and rounded buttocks emerged from the corset to show the brands encrusted in her white skin; her height, which was increased by her shoes; her slightly bent knees; her hollow back; her thrusting breasts which displayed the large rings behind each nipple and her branded belly which displayed the initials of her mistress; all announced her enslaved condition and her ownership. The whole apparition was topped by her long blonde mane, which, of course, matched her silky tail. Blaise made her trot with the lunge to allow her to warm up and left her tied to her usual stake waiting to be presented.

During this time, the guests were arriving. Along the drive was a terrace, able to accommodate the hundred people who had been invited there this day to celebrate Chantal’s thirtieth birthday. The count greeted them and accompanied them into the large white and green tent, which had been erected to shelter the buffet. The cocktails were splendid, the champagne, which ran free, was of the finest and the waiters in their white jackets circulated among the guests as the sound of an orchestra animated the reception.

When the guests had arrived, Blaise went to harness Louise. He had chosen the light gig that she had seen in the garage. It was incredibly light, being made from carbon fibre and could accommodate two people. Blaise fixed the straps and attached the reins to her nipple rings, but did not go up to the house. He brushed Louise one last time, made sure that she was perfect and waited until he was called.

During this time, Chantal de Roquemaure had made a noticeable entry. She was dressed in riding gear and she wore above her fawn-coloured leather boots, clear beige jodhpurs, which tightly moulded her perfect figure. The fine elastic fabric reproduced almost the texture of her skin so that even the light bulge of her pubis could be noticed. Her silk shirt was of the same colour, smooth and semi-transparent with a collar open almost to her navel. It was evident that her small but firm breasts were free of any support.

Her appearance and beauty filled the men there with desire and the women with jealousy of this desirable, beautiful woman so favoured by life. The count was jubilant, seeing their envious glances. He addressed his guests, inviting them out onto the terrace. The company was drawn from the haute-monde, the men in morning dress, and the women in the finest couture gowns. All were delighted to be there to celebrate Chantal’s birthday and to see the famous equestrian estate.

The count was passionate about horses; he had one of the finest racing stables in Europe and took pleasure in sharing that passion with his friends. It was on a racecourse that he had met Chantal de Roquemaure, thirty years his junior, who had been dazzled by the opulence of the horse shows that so enthused the old man. He, in turn, was entranced by Chantal’s beauty and did not rest until she agreed to be his mistress. The count ensured that she was able to ride the finest horses, drive the most beautiful equipages. Her passion found its summit with Louise today.

The count introduced successively a display of his stable of stallions and dressage demonstrations worthy of the ‘Cadre Noir de Saumur’, some races allowed the company to see thoroughbreds from remote stables put through their paces. Finally the count rose and took the microphone.

“My friends, I wanted to share to you today with my joy in celebrating the thirtieth anniversary of my partner. For this birthday, I wanted to make her an exceptional gift, a gift of which I had dreamed for a long time, and of which, I think, many among you dream. An animal, which, in the wild, one only finds today in some rare African livestock. This specimen was born in captivity but is at least the equal and is perhaps the superior of the wild variety. I acquired for Chantal and have had trained in the traditional ways: a woman-mare!”

Simultaneously, the company saw appearing from the direction of the stables, Louise harnessed to the gig with Blaise walking behind and to one side of her and guiding her by the reins fixed to her bit via her nipple rings. He walked as far as possible from the filly to leave her as the star. Louise advanced with perfect posture and step, drawing the light car easily. She was proud and conscious of the importance of the event.

The assembled company was flabbergasted, but also a little worried by the sight of this woman brought so completely down to the status of an animal, but herself accepting her condition perfectly, parading and exhibiting her harnessed nudity, her skin marked with a red-hot iron, marking her total and complete submission to her mistress and owner. Louise progressed towards the terrace as she had been taught, swinging her rump and tail and shaking her mane as she went. When she arrived at the foot of the steps, Blaise touched her rump with his whip and the girl, going down on one knee and lowering her head, greeted the guests by striking her right shoe on the ground.

“My darling, this is your new pony. Take possession of it now.”

Chantal was exultant. She descended the steps slowly, approached the filly and walked slowly round her, admiring the conformation of the girl, how she stamped her hooves and the perfection of her harness. Then slowly, she climbed in the gig, gathered the reins and took the whip that awaited her in its bracket by the seat, and with an experienced movement whipped the girl’s rump.

Louise gave a cry; for she had not expected such a heavy blow, having been trained to obey a simple gesture from the coachman. She may have cried out, but she started at once and galloped straight ahead. Chantal pulled on the reins and quickly gained control of the girl. She made her gallop for a full circuit before bringing her back towards the guests and then made some sharp turns by drawing sharply on Louise’s reins. Because the quality of the girl’s training had given her very fast reflexes, she was able to manœuvre the now docile filly with ease. The changes in direction resulting from a pull on one or the other breast were immediate; the light bite of the whip on a buttock induced an instant response from the animal.

Blaise, modestly withdrawn in the shade of the terrace, felt a warm pride and tenderness for the girl whose character he had so well exploited to lead her to give her best efforts. Louise, herself, although her flesh suffered from the brutality of Chantal, exulted at thus being able to develop herself and to be the centre of attention of the company.

Chantal stopped by the terrace and invited one of her best friends to join her. She was a stout woman, wearing a flowered dress and a large brimmed hat. She hurried, delighted at being asked to join this singular promenade. She stopped as she approached Louise and caressed her cheek and ran her finger over her breasts, impressed by the size of the rings that pierced Louise’s flesh.

“Goodness! To think that in a different life, someone could have done that to me!”

“And not only to you my dear”, answered Chantal. “Come, climb up with me and I will take you for a short drive.”

The fat woman climbed up with difficulty into the gig, which sank on its springs as she settled. A lash of the whip and the equipage began to move. Louise had now to draw a very heavy weight. Under the bite of the whip, she was able to move but only painfully slowly. Chantal was irritated, flicking the reins against Louise’s breasts and whipping her rump. The girl made gasping sounds as she struggled draw the weight of the two people on the gig; her breasts were shaking and her muscles bulging.

Chantal violently warmed the rump and back of the poor girl until as they came out of the bend, she could finally accelerate. As they arrived at the beginning of the straight, Chantal tried to make her gallop but the gig was too heavily laden and Louise could not manage to do so. Wisely however, after consulting Blaise and taking his counsel of moderation into account, she was satisfied to take the girl into a trot only and brought her back to the foot of the terrace, to the applause of crowd. She tied Louise, still harnessed to a stake and the garden-party began again.

The crowd pressed around Louise, curious and shocked. A tall elegant lady accompanied by her husband walked round her. “But she is no longer a woman! No normal woman could accept having such things done to her. Look at this ring through her snout: she is attached like an animal! Look at these reins! (She pulled sharply on the reins where they were fixed to Louise’s nipple rings, which drew from her yelps of pain, although she did not rebel). Look at this sewn-up sex! It is horrible!”

Her husband did not reply, but looked at the pony-girl with a dreamy air. At last Blaise came to take her back to her stable, dried her skin, which was glistening with sweat, massaged her bruised breasts with ice cubes and let her drink.

Chantal came to see her during the evening. She caressed her at length and stroked her behind, at which the girl moaned with pleasure. Her mistress liked her.