"Yes," you reply confidently. "I am pleased with my changes Master."
"As am I," replied the Minotaur with a brief chuckle. "They seem to be proceeding faster than the mage told me they might."
"It was frightening at first, Master, but in these last two days I have quickly grown to appreciate my changing form." you reply with a beaming grin.
You look down at yourself and you can’t believe how big your chest has grown and how hairy it now is. Your chest is two solid plates of bull meat and your arms are bulging with new muscle. Your shoulders and neck are now beefy, and yet still not as big as you know they will be. Even at this size, though, you know you’d put most guys in the gym to shame. You flex your arm, rubbing the biceps. It’s now at least twice the size it was before. It’s not saying much since before you were average to just a little muscular, but you look to your Master and realize that you will take on his beastly masculine form when you have matured and it encourages you.
Your cock has gone through some changes as well, overnight as you absorbed your Master’s seed. It has grown to twice it’s size in girth and gained half again it’s length making you a good ten inches of heavy thick bull meat. Your balls feel like they’ve grown to the size of lemons. You compare yourself to your Master and he chuckles as you look back and forth between his bullhood and your emerging bullhood. You know what’s in store for you and it makes your cock twitch.
You feel the coarse furry skin of your growing sheath. It’s not yet really a sheath, just some thicker skin with fur, but it’s beginning to attach itself to the area above your cock, beginning to part your dense, curly pubic hair. As you admire your changes and fondle your balls the swollen head pops out of your thickening, lengthening foreskin and the shaft distends.
"You clearly like what you see. Excellent!" the Minotaur laughs.
He moves behind you and begins massaging your thickening neck and shoulders with his strong, warm hands. He nibbles gently on your ears. Then he whispers to you.
"Alas, my love I haven’t come here to watch you pleasure yourself, though that would indeed be time well spent. We have much more to achieve before you are completely changed. Put this on, you will need it," orders the Minotaur and he hands you a ball gag.
It is a strapped gag with a hole all the way through the golden ball that is about the size of a baseball. Were it not for your changing larger mouth, you would not be able stretch wide enough to put it in.
Normally asking you to wear the devices of bondage would have brought frightened protestations from you but instead the idea of wearing this gag makes your cock grow. You realize that not only has your body changed, but your mind is changing as well. You are very trusting of your Master now; you know that serving him will bring you and he both great pleasures. You quickly attached the gag to your head, the ball forcing your mouth wide to accommodate it. You expected the golden ball to be hard and cold, but it isn’t. It’s soft, though it does seem to be made of solid gold. It’s body temperature warm and though it stretches your mouth, it’s fairly comfortable. You feel it growing into a tube toward the back of the ball, making it almost light bulb shaped so that the stem end extends into your mouth, depressing your tongue. It holds your mouth completely open and you can breath through the opening.
"This gag you wear will serve two purposes today," explained the Minotaur. "But before I can show you its uses you will need to be restrained. Go to your bed and lie on your back, my love." The Minotaur rumbles lustfully. You do as you are commanded and lie on the bed. The butt plug that massages your anal cavity twitches into action again. It deactivates for a few hours to give your muscles rest. You have grown used to the cycles of exercise and rest and can almost tell time by how many cycles in a day the plug has executed. As you lie on the bed and your Master restrains your arms and legs so that you are spread wide on the bed with a limb at each corner, your Master compliments you on your body and your general attitude. He tells you how he loves you and how excited you make him. You glow with pride.
Your changing legs are furry and changing in shape. They require a different kind of restraint than was used when your ankles were still more human than bull. You developing hooves would slip right out of the shackles normally used on humans.
Once you are secure, your Master explains:
"The gag you have strapped to your head and placed in your mouth has an opening. The opening is for a tube that can be inserted into the gag. The same tube can be inserted into the plug in your ass. The gag itself will train the developing muscles of your mouth to accept the girth of my cock as soon your bovine muzzle is long enough to permit me to fuck your face as well as your ass."
The Minotaur pauses and takes a device from a bag. He holds it up before you. It looks like a golden dildo, but he shows you that it is more like a test tube or a metalic condom with a finger width hole at the end where the cock head would be.
"This is a milker. It was made by the mage that made your golden butt plug and ball gag. It will grow as the gag and plug do, to accommodate your needs and it will work in concert with these two items."
The Minotaur begins rubbing your new developing sheath and your cock emerges, standing proudly. You moan softly as you become fully erect. Your Master takes the milker and places it over your cock. Immediately, it conforms to the size and shape of your cock. It too is warm and soft and feels like you are wearing a gold condom. Once attached, a tube begins to form at the head of your gold clad cock. It’s a soft, pliable golden tube that stretches for two to three feet. The Minotaur takes the end of it and attaches it to the hole in ball gag in your mouth. The tube seals itself to the gag and you know that you now have a means by which you can be milked and fed your own sperm.
As soon as the tube is attached, the milker begins to pulse in counterpoint rhythm with the butt plug. You feel the plug swell and pulse inside you and the milker vibrates and sucks in syncopation with the plug. You moan in incredible pleasure, straining against your bonds as your back arches; this is incredible pleasure!
The Minotaur steps back and admires his work. Watching as you writhe in pleasure. He strokes your hairy chest, tweaking your nipples in turn and then moves his muzzle to your balls, licking them with his warm tongue. You are completely his now, you wouldn’t escape now if you were brought to the cave entrance and pushed out. You’d cling to your Master and beg to be taken back.
The Minotaur ceases his ministrations and pulls up the couch so that it is at the foot of your bed. You writhe in pleasure and the magical devices build you up almost to orgasm, then back off allowing you to cool down.
It is during one of these cool-down phases that the Minotaur speaks.
"I thought you might enjoy these toys, but they are more than just pleasure devices. You will feed on your changing seed all night while I rest. Purging your growing balls of the last of your weak human sperm. The exercise will encourage growth of your bullhood and increase the production of rich bull semen. All three of the devices cannot be removed by any but I. The tube can be attached to either the gag or the plug and your seed can be fed to you at either end. The tube is, of course, quite unbreakable as are the other devices." Your master explains. "But I doubt you’d want to even try to remove them, would you?" He smiles and you shake your head from side to side to indicate, ‘No’.
Your cock, now that you’ve cooled down, is retracting into your emerging sheath and you notice that the milker goes right into the growing foreskin with your cock, yet the tube remains; emerging from your sheath, lying on your furry belly and barreling chest. It is warm and flexible and undulates from right to left like a snake as though it was a living thing. Occasionally it pauses and caresses one of your nipples and that sends electric pulses of pleasure through your body.
The Minotaur smiles. "You will have magic nipple rings too, my love, soon enough."
Your master takes another milker out of the leather pouch. It is about the same size as the one he just put on your cock. He rubs his own groin and his enormous cock pushes out of his sheath. He holds the large open end of the milker to his cock head and gently pushes it down against his flared head. The milker grows to accommodate his huge bullhood and covers the entire length. You watch as it undulates over the length of his cock, milking him. A tube emerges from the end as it did with the one you wear.
"Now my love, time to give you your third dose of my fertile metamorphic seed!" He growls huskily and deep.
He attaches the end of the tube to the exposed end of your butt plug and it seals to the plug as the end of the tube on your milker did to your gag.
All of the devices begin to pulse again. Your Master lies back on the couch he has pulled up to the foot of your bed and begins to stroke his cock and fondle his balls, occasionally rubbing his inner thighs and tweaking his nipples. He closes his eyes and moans softly. You watch him masturbate and it sends a thrill though you. He begins to thrust his hips in time to your own thrusting.
Soon he begins to spurt his seed and the milker begins sending it down the tube. It is fed directly into your guts; your belly begins to distend with the amount of your Master’s cum being pumped into you. Just as in the last two days; your belly grows large, but not as large as before, by comparison, as you have grown in height and mass. This continues for at least an hour and you are denied an orgasm, as your Master seems to go through one after another. It is frustrating and erotic at the same time, the devices build you up and then prevent you from achieving your bliss.
The Minotaur bellows out his last orgasm for the day and you are allowed to come at the same time, feeding yourself your own sperm as your Master gives the last his balls will make today. You both lie panting, sweating. You smell his bull musk and it makes you feel light-headed. Your own changing scent, you realize, is growing stronger and smelling more like your Master’s musk.
After a nap, your Master gets up and detaches the tube from your plug. He removes the milker and it shrinks back to its original size, the tube retracting until it is no more. He places the milker in the leather pouch. He walks to the head of the bed, bends down and removes your gag.
"How do you feel, my calf?" The Bull Minotaur asks as he strokes your bearded cheeks, now developing into a bull’s muzzle.
"I’m tired Master; but I feel warm and pleasantly tingly all over. I am comfortable." You reply.
He presses his muzzle to your short muzzle and forces his tongue into your throat. With his big, hairy hands he strokes and plays with your beard. He retracts his tongue and breaks the kiss.
"Good… Very good my calf. Soon you will accommodate my shaft easily." He says.
"I wish to service you, Master. I want to give you pleasure." You say.
He smiles and rubs your chest and belly before he replaces the gag.
"Sleep well my calf. Tomorrow brings you more wonderful changes."