Shemba knelt at the back of the room and watched the dancers as they displayed themselves before the guests, dancing erotically to the weird music provided by a group of hooded musicians. At the far end of the room her Master watched over the feast and chatted to his important guests. Like all the slaves in the room, Shemba longed to be allowed to serve her Master personally, but Teacher had told her whole class that it was a very great honour to be permitted in her Master's presence at all at this stage of their training.

Over the two weeks following her arrival, each of the kennels neighbouring hers had filled one by one, night by night with other enslaved Earth women as the Master had held nightly ceremonies of enslavement. Bewildered and frightened they had been swiftly brought under strict discipline by Teacher, who was not afraid of wielding a lash over a recalcitrant pupil and who could call on the guards for help if stronger punishment was called for.

They had been forbidden to talk about their past lives even among themselves. There was no way of knowing what the Negro girl, Teshva or the tall blonde with the 'Southern Belle' accent, Vellra, had been on Earth. Here they were just slaves. Vellra had tried to condescend to Teshva when Teshva had proved the better pupil. "Slavery is in your blood, I suppose," she said. Teacher had proven to her that they were all equal in slavery. Vellra was made the servant of the whole class for a week, having to address the others as 'Mistress' and to kiss the black girl's feet every time they met. She had given the Negro girl the right to punish Vellra if she was not sufficiently respectful. A week of that broke Vellra's pride. Now she was becoming almost human.

The first month had been exclusively given to language lessons and basic deportment and manners and they had not set foot outside the building that contained their kennels. Their world was limited to the kennels, the bathrooms and toilets at one end and the large 'schoolroom' at the other end of the hall of kennels. The schoolroom was where they fed (usually on gruel with perhaps a little fish or meat and some fruit afterwards), where they had lessons and where Teacher slept on a large mattress behind the large wooden post to which slaves were tied to be punished.

The language lessons had been part indoctrination too. The sample sentences they had first been taught had been mostly slogans: "Men are Masters. Women are Slaves", "Submission is Pleasure. Obedience is Pleasure. Disobedience is Pain", "Men Command and I must Obey", "My Only Desire is to Serve My Master" and most often: "I am a Slave. Use me as you will." And because of the magic that bound them all they came to accept and believe the sentences more and more each time they repeated them.

They had learned the meaning of their new names too. 'Shemba' meant 'caress'; 'Teshva' meant 'kitten'; 'Vellra' meant 'silk'. They had been taught how to kneel (always with the knees spread wide so that their sex was open to touch and view), how to walk and how to crawl. Once they had aquired the basics of the language of their new world they learned how to address men and free women. How to beg and plead. How to stand in the presence of men. Regular excercise and a strict diet to bring their figures to precise requirements.

More advanced tuition had begun in the second month. Teacher had brought in squads of guards for them to serve and service. The guards would be treated to a feast in the schoolroom served them by the class. The slaves were kept hungry the day before a feast so that they would beg prettily for the guards to feed them and even fight for scraps thrown to them. At the end of the feast the guards would choose which of the slaves they took back with them to their quarters. If any slave had failed to interest a man in her by the end of the evening or if a guard gave a bad report on her then she could expect to be punished in the morning before the whole class. Once the whole class was punished because of a particularly bad error by Chubia, the Oriental girl. They all missed three meals because of it and Chubia's life was made a misery by the other slaves.

Shemba had been punished once after she spilled wine over a guest at one of the feasts. She had been beaten by Teacher before the whole class and had been kept tied to the punishment post in the classroom through the rest of the night. The next day at breakfast she was permitted to crawl to Teacher and feed from her hand. Shemba was careful not to give offense after that. She was proud of the fact she had never failed to be chosen by a guard and she had never received a bad report from one.

Because of the binding spell her sexual desires had been intensified a hundred fold. They were strongest with regard to her Master of course, but it only required a man to look at her now and she felt her pussy begin to moisten and her knees twitch still further apart. It seemed that the magic that made them slaves also made them infertile. They no longer had periods and no one took any precautions to keep them from getting pregnant. When Shemba asked, Teacher also told her that there were no venereal diseases native to this world and the Master had made sure that they were free of infection before bringing them here. Teacher included herself in the answer and it was clear that she had been the first slave brought here from Earth and trained in order to train the others.

Now, in the third month, Teacher permitted them to serve at the lower tables in a feast where their Master was present. She had decked them in silk tunics which showed their figures and gave ready access if the guests should want to use them. On their arms and legs were draped chains and slave-bells that tinkled as they walked. At their wrists and ankles were ornate fetters that could snap together or to their collars. They lined up by Teacher at the far end of the hall and served wine and food as directed. By now the feast was well advanced and several of her classmates were serving guests. Vellra had her mouth around a guard's cock, sucking happily while Chubia bounced up and down on another's lap.

Then Teacher signalled to Shemba to go and serve wine to a couple of young men in robes who sat earnestly talking in one corner. She knew by their garb that they were magicians, probably apprentices or students of her Master. As she arrived and poured wine for them one was laying down the law to the other. He was slightly drunk and very pompous:

"The Rule of Changes is perfectly simple. It means that it's easier to change something the way it's supposed to go. If a thing has a tendency to go in that direction then you can push it that way easily."

"Which is just to say that water runs downhill."

"No. Well yes. Let me show you. You, come here."

Shemba came and knelt before them: "How may I serve you, Masters?"

"Remove your silk and be still." He did not even glance at her as she stripped in front of him. Shemba felt annoyed and ashamed that her artistic removal of her garment which she had practiced for hours under Teacher's supervision went for nothing, but she settled back into the kneeling position, her hands resting palm uppermost on her wide-spread thighs, her back straight, her shoulders back to display her breasts to advantage, her eyes respectfully down until she should be spoken to again.

"There are three degrees of Change. I'll show you. The first degree is when you change something in a direction it's ready to go. Watch."

He gestured towards Shemba in a nonchalant fashion. She felt a strange tingling aroound her eyes and suddenly she began crying. For no reason at all her eyes filled with tears which rolled down her cheeks in great salty blobs causing her make-up to run.

"Please, Sir, I..."

"Be quiet Slave! Speak without being addressed again and I shall have to speak to your trainer! Now," he said turning back to his friend, "the second level of Change is a change that is possible but unlikely. Like this." This time the young magician braced himself and concentrated hard. Shemba felt her breasts tingle this time and looking down saw that they were increasing in size as were her nipples. As they swelled they began to hurt and she looked up at the two men desperately. The young spell-caster relaxed and said: "Come where I can touch you slave." She leant forward and gasped as the man grasped her right breast. He squeezed gently and milk spouted from her breast and into his cupped hand. The other man reached forward and copied his friend's action bringing the milk to his mouth.

"Not bad. Can you make it brandy-flavoured?"

"I'm working on it. Hold still slut! Now watch this. Third level Change, hardest of all, totally unnatural change."

The young magic-user concentrated hard and began muttering under his breath. He began to sweat and breath heavily as if he was making a huge physical effort. This time Shemba felt the tingle of magic around the front end of her pussy. Looking down she saw her clitoris growing longer. Longer. And longer. Then it was curling upwards the size and shape of a male penis erect and rampant. The only thing missing from it was the hole in the end!

"Wow!", came from the second apprentice.

And at that point Shemba started screaming. Unable to bear any more and frightened beyond control, she screamed and kept on screaming unable to stop.

"Shut up! Shut up!" The two apprentices started shaking her.

"Stupid slut, what are...Oh Bogrot! The Master is coming. Get the spells off her quick."

And then she was being picked up and slapped hard across the face and she collapsed sobbing at her Master's feet. She heard his voice, hard and unsympathetic.

"Well, well, Choro, having fun showing off the pitiful shreds of knowledge you managed to pick up from my lessons. I am most impressed... With your audacity. I do not enjoy disruptions at my feasts. Return to your rooms both of you and be in my study at the fourth hour tomorrow."

Shemba heard two very frightened apprentices mumble apologise and leave. Her Master turned to address someone else.

"Challya, this is one of your pupils."

Her Teacher spoke: "Yes Master. I beg your forgiveness for..."

"I know she has not completed her training but I expect better control than this. I count this spectacle as partly your fault."

"I beg forgiveness, Master."

"You will bring her to me tomorrow at the sixth hour. As for her punishment...Slatrov!"

Was she to be punished by the huge, crude guard?

"My Lord?"

"Bind her to the punishment block and then fetch Brulli."

"Brulli. Yes, my Lord. An excellent idea."

She found herself hauled to her feet and slung over Slatrov's shoulder. She was taken to the centre of the hall where two other guards were setting up a large block of polished wood to which were fixed metal rings. One of them called out to Slatrov: "Hey Slatrov. Face up or down?"

Slatrov thought for a moment and then said: "Face up. Let her get a good look at her lover."

For some reason that seemed to amuse the guards. They rapidly fixed her to the block snapping her wrist and ankle shackles into the rings, her arse sticking out over the end, her arms pinned back and her legs pulled back and apart. Slatrov left and she was alone in the middle of the hall with nothing to do but stare at the ceiling and wonder what was in store for her. Around her the guests returned to their feast, chatting and joking. Her breasts no longer ached, full of milk and her clitoris seemed to have returned to its normal size. She felt ashamed of how she had behaved in the presence of her Master and hoped the punishment would not be more than she could bear.

Then she heard a hush go through the room and two people approach. Looming over her she saw Slatrov and another figure dressed in a robe like a monk's, complete with hood covering its face.

"Well, little Shemba. This is Brulli. He used to be an apprentice to the Master too. He got a little careless when he was practising and well, he hasn't been the same since. Show her Brulli."

The other shucked off his robe and Shemba nearly screamed again. Brulli was short and squat and looked as massively muscled as a gorilla. But that wasn't the worst of it. His skin was toughened and leathery like a crocodille's and he had the elongated snout and sharp teeth of a lizard.

Dangling between his legs was a huge, leathery cock.

"Now Brulli isn't too bright nowadays and he doesn't get to enjoy himself very often so you be real nice to him. This is a sort of treat for him."

Slatrov laughed and walked away. Shemba watched with terror as the lizard-man reached knelt down by were she lay, bound to the block. At first he sniffed at her and then began to paw her breasts. His leathery hands had four fingers on them and the claws on the end began to draw blood from her. Then he pushed his huge leathery cock at her mouth. Suppressing a whimper she began to work on it as well as she could. She heard the conversation pick up on the surrounding tables as the guests began to whisper to each other. The cock tasted different from any she had sucked before. The flavour was not unlike licking the boots of the guards. It soon began to get erect just like a human cock and Brulli gave a hissing sound that sounded to her like contentment. He reached between her legs and carefully began to finger her cunt, keeping his claws retracted this time.

Then she felt something pushing against her jaw. She pulled back off the cock to see what it was and gasped once again. Underneath the cock she had been sucking on was another, smaller erection, about five inches long glistening hard and green in the torchlight of the hall. It seemed to be covered in a greenish slime which oozed out of it.

Brulli hissed in something like amusement at her reaction and stood to walk around to between her legs. He gripped hard on her thighs as he knelt and then pushed the larger of his two erections slowly and deliberately into her cunt. He might not be too bright but he was far from being an animal. He was controlling himself and making the most of his treat.

Then Shemba felt him pushing forward again and his lower cock was pushing into her arsehole. She had been used in the rear by several of the guards before now but never before had she felt both passages filled at the same time. Then slowly and almost gently the lizard man began to fuck her.

He would pump backwards and forwards with a maddening slow rhythm pulling back until the tip of the smaller cock was almost out of her and then push hard right up to the hilt. He kept this up for twenty minutes. The larger cock was ribbed and leathery and the sensations stimulated Shemba immensely. The smaller cock caused a burning feeling to spread in Shemba's bowels. Perhaps it was the secretion it gave off.

The sensation was strange and almost but not quite painful. Then the lizard man began to fuck her hard, pounding her like a piston engine. He began to gasp and make a strange keening sound in the back of his throat. Shemba too began to gasp and moan as the strange double fucking reached a climax.

As the lizard man came she felt two waves of hot burning come spurt into her filling her up and burning as it came, scalding her like hot acid. She screamed at the pain and heard a ripple of laughter and applause from the watching guests.