Starry’s mind had all but turned to mush under the relentless pounding of the Master Shaman’s cock. And yet, she still retained a tiny piece of herself deep within. It was slippery, like a marble coated in butter, but somehow she managed to keep her grip on it. Maybe it was something about this place. Maybe it was something she’d done. Maybe it was what she had once been. It was still there.

But even that piece couldn’t resist the sheer pleasure of the combination of that potion and Master Shaman’s cock. She loved it. It felt so wonderful just to give herself to that sensation. A sensation that insisted she’d never been a pegasus or had an interest in magic. It was so hard to—

Starry yelped as the cock suddenly seemed to thrust through her entire body, reach forward and pierce a tiny portion of her mind, sending mental shockwaves through her consciousness. Starry spasmed as a shockwave hit some of her memories with her marefriend, a unicorn named—

“Ah!” she squeaked as her pussy clamped down on the thick, wonderful cock.

—a zebra shaman named Courage Fire. Not the best of alchemists, nothing like the Master Shaman who was plowing her over and over again. But decent. She’d been mostly happy with her—

“Oh Ancestors!” Starry screamed as the cock struck again...

—more or less satisfied with her love life with Courage, but she needed more. She wanted to know more. See more. So, she’d eventually left Courage to find Shauku the Passionate. Rumors of the Master Shaman’s virility and strength had spread throughout the land and that’s what she wanted. It was a shock the Master Shaman didn’t have an entire harem dedicated to service. Eventually, she knew that would change. Still, her time with Courage hadn’t been all bad. She’d enjoyed being the dominant one in their—

“Master! Yes!”

—being a submissive, horny little sex toy for Courage whenever they had gotten into that mood. She’d always been a submissive zebra mare. Nothing drove her wild quite like having somezebra take control of her. And there was something about this Master Shaman that brought that part of her out all the time. With the Master Shaman, she knew she’d never be dominant again, unless the Master Shaman willed it. She knew from then on, she would never be anything more than the Shaman’s submissive assistant, lover and occasional pet. She existed to serve. To obey. To aid.

“Well done, assistant!” the Master Shaman praised. “I can… I can feel us getting closer… but you need more. You need to be even better. And you will be.”

Starry turned her head just enough to see the Master Shaman. For a moment, she had the memory of a orange-coated mare with orangish brown mane claiming her, but the being above her looked nothing like the picture she had in her hea—

The image vanished, replaced by the goddess of a mare ramming her thick black cock into Starry’s eager sex.

Her stunning visage, with a supple yet strong body of a zebra who lived in and fought with the jungle day in and day out. With every thrust, Starry saw muscles move and twist in ways that sent her head spinning. Her coat was the perfect deep gray of an oncoming storm with thick black stripes twisting around her body like some sensual snake. Her mane was the traditional mohawk of a Master Shaman, though she had a single lock of orangish brown hair on her forehead to show her disregard for the backward ideals of the Zebrican Shamanistic Council. The goddess’s tail flicked back and forth, revealing much the same, though her tail was long, luscious and flowing.

She looked down at Starry with a smirk and eyes the color of—

Starry blinked. The Master Shaman’s eyes were a strange combination of blue and amber, swirled together, neither really one or the other. She’d never seen such a thing. It had to be—

The Master Shaman suddenly stopped thrusting. Starry gaped at the change, her body immediately protesting, aching for more, willing to give almost anything to continue to be pounded.

“Time to test you, assistant,” the Master Shaman said with a grin. “I, of course, have perfect control over my body. You do not. I command you to find three potions. Do so, and I will claim you again and again until this storm ends. Fail, and you will serve me with your lips while I forbid you your own pleasure until the sun sets twice.”

“I… I must… remove myself from you?” Starry whined. She couldn’t help herself. The cock almost felt like it had grown larger while inside of her! She didn’t want it to leave! It belonged inside of her! “Are… you sure Master?”

“I am,” the Master Shaman sniffed. “Find the potion that will make you eternally submissive to me in body and mind, the one that will refine your nearly-perfect compatibility with me, and finally, a draft of Heart’s Desire for yourself. I shall become your only reason for existence.”

The Master Shaman slowly withdrew from her and Starry lost all thought again. She shuddered and twisted, her tail thrashing in need until with a pop, she was separated from the Master Shaman. Her body immediately begged her to spear herself on the Master Shaman’s cock, but the Master Shaman sat down on her haunches and idly toyed with the mammoth black tool, looking up at her assistant expectantly.

“If you desire this, obey me.”

Starry scrambled to her hooves and scampered into the lab proper. All the while, her pussy ached with the memory of the huge cock. She needed it. So, she would obey.

She knew what all the potions looked like and their locations within the laboratory, of course. The piece of her that was still her pointed out that the Shaman had fucked out all of her experience with magic to put that information there. The rest of her didn’t care. She was a zebra. Magic came from potions, not sticks.

Anyway, she now served the Master Shaman. If the Master Shaman decided to fuck new knowledge into her mind and displace other parts of her, that was the Master Shaman’s right.

She found the first potion and checked the label. Indeed, it was the correct potion. One of many potions forbidden by the Zebrican authorities that the Master Shaman had brewed. This one would wholly make her the perfect living puppet of her Master. The Master Shaman’s will would become her reality. She’d give up every bit of independence by drinking this. The Master Shaman would be capable of reprogram her mind with a few words.

The thought made her so wet she almost came right there. Free will was a small price to pay to get that cock in her again.

She galloped to the other side as the Master Shaman began to hum. It took some rummaging in one of the drawers, but she came out with the compatibility potion. This potion was just frowned on by the outside world, for it would simply make her an even better mate for her Master Shaman by reshaping both her thoughts and her body further.

Finally, she went to the station the Master Shaman had been working at, the one with the planters. Another draft of Heart’s Desire had been waiting there for her. She moved to grab it.

“Stop,” commanded the Master Shaman behind her.

She obeyed instantly, all but freezing in place.

“Give them all to me.” The Master Shaman instructed.

She turned and did so, her head down in submission.

“Close your eyes and think of nothing but me claiming you, assistant.”

Standing there, her eyes closed and her hips began to buck as she imagined the Master Shaman claiming her again. The Master felt so wonderful atop her. She moaned softly.

After a few moments, the other zebra chuckled. “That should be enough to bind you properly to me. You may stop and open your eyes, assistant.”

Starry did as instructed, finding herself looking at the three potions now sitting on the table. All of them had been recapped. It wasn’t hard to figure out what the Master Shaman had done. And that made Starry want it more.

“Become my servant in all things,” the Master Shaman commanded.

The little piece inside Starry shouted at her to resist. She hesitated briefly. The Master Shaman let out a hum of surprise.

“There is part of you that does not wish to serve?” the Master Shaman asked. “I already know you cannot even think of me as anything other than ‘Master Shaman.’ Can barely even think of me as male or female… and yet you hesitate.”

That little marble fought back. She didn’t want it to!

“Help me?” Starry begged softly.

The Master Shaman seemed to consider her request. “Oh… very well. Only because I enjoy pounding your beautiful zebra pussy, assistant.”

Then, the Master Shaman slid atop of her. She moaned as if she were in heat. But when the Master Shaman slipped the very tip of that massive cock inside of her, even her little marble couldn’t resist.

“Become mine,” the Master Shaman whispered in her ear. “Become the property of Shauku the Passionate.”

Before anything else inside her could resist, she popped off the top of the potion and downed the entire thing. It tasted like kiwi. Then, a strange wave of numbness washed over her. She could feel nothing save for the cock barely parting her lower lips Even her mind… numb.

The Master Shaman whispered something she didn’t understand. She shivered and felt something pass from herself into the Master and something from the Master pass into her.

She blinked, and all sensation returned.

“You’re mine now,” whispered Master Shaman.

“I’m yours now,” Starry repeated. She’d lost something in that numbness… but did it matter, really?

Of course not. Not unless Master Shaman said so.

“Mmm… your thoughts are pleasing, but you may now think of me with my true name, though address me as Master or Master Shaman,” said the Master Shaman. “My true name is Shauku. You have now forgotten any other name I once had.”

“Master Shauku,” Starry whispered, honored to be able to think of Shauku by her real name.

“You may possess memories of me as being male. But you know that these days, I am female with additional equipment. You find this extremely enticing. You accept it. You revel in it. It arouses you intensely.”

“Yes, Master Shauku.” Her hips bounced a bit, wanting Shauku so much more now.

“And I was thinking… you deserve a proper Zebra name now that you’re wholly submissive to me. How about Watii? Yes, I like that. Let that name burn into you, replacing what you were.”

Watii came from the sheer pleasure of being completely rewritten on a base level as the old name she suddenly forgot just vanished until it had never been there. She’d always been Watii. Her parents had named her that. Her lovers had called her that. Her friends had whispered secrets to her as that.

“I am Watii,” Watii whispered as a small ball bounced around in her head, protesting about… something.

“Time for the next.” Shauku commanded. “Drink it and become more perfect for me.”

She wanted nothing more. She did as instructed, no hesitation, no doubt, just a need to obey Shauku’s beautiful voice. She drank… and it tasted just as Shauku smelled.

Without thinking, her hips slammed backward. Shauku shouted in surprise as Watii suddenly hilted herself on her Master’s cock. Then she started to shake. She couldn’t even process the pleasure of being on Shauku’s cock again. She was too busy writhing as she changed for her Master and mate. She felt herself shrink a little, until the Master Shaman was at least half a foot taller than her. Her hips swelled, becoming perfect for Shauku to grab as she took her with that giant cock that threatened to split her in two. Her nipples on her underside became so intensely sensitive she thought she might pass out. Her mane grew out a little more, as did her tail. To her surprise, another stripe of light blue appeared in both. And finally, she caught sight of her new mark: three bottles on a shelf. The bottles were in a swirl pattern with a heart within. Her identity. Her truth. Her very self.

Then, the changes to her mind began. She could feel knowledge swelling inside of her, knowledge designed to be a perfect compliment to her Master. She could step in and do so much in the lab… and she blushed when her sexual knowledge blossomed as well. The potion’s magic swirled through her brain, leaving behind all the ways she could bring pleasure to a herm zebra. So much of her mind was dedicated to the sexual service of her Master. Without intending to, she began to do one of them, moaning lustily as she worked her hips slowly back and forth along her Master’s thick length.

Finally, the potions warm hit her pussy and seemed to buzz within her even as Shauku moaned to Watii’s desperate needs.

“Mmm… do you want me to burst inside you so bad?” Shauku moaned as she began to truly fuck the smaller zebra’s needy sex.

“Yes, Master Shauku!” Watii begged. “Please, I… I want nothing more…”

“Then have it, my good assistant…” Shauku grunted. “Have your first load of my seed knowing there will be many more until the day you become my broodmare. A day you look forward to.”

In an instant, her mind switched tracks, imaging the day far in the future when Shauku would truly claim her as her first wife after giving her the potion that undid the potion most zebra mare took upon adulthood… the one to prevent children until the time was right. Then, she would spend three days serving Shauku in every way until she couldn’t help but be filled with foals.

She thought about that day… and let out a cry so loud it shook the very walls when Shauku unloaded into her. The beautiful warm spilled into her, filling her to the brim in moments. Then, Shauku pushed harder and the cock spurted deeper and… Watii started cumming again and again and…

The potion… reacted.

“Master, I’m… something’s changing!” Watii cried as she felt something heavy and warm behind to grow beneath her. “I… am…”

Shauku’s hoof wrapped around her middle to stroke at a new rod growing between her legs. Watii couldn’t help but moan in need at the touch.

“Mmm… compatible… compatible indeed… it seems some nights you will claim me… when I so desire it…” Shauku said, her voice a mix of awe, approval and intense arousal. “Let us test this.”

“Master Shauku, please I…” Watii barely managed to keep her hooves beneath her as with one hoof, Shauku began to stroke her off even as Shauku continued to pound her spasming pussy.

“Be proud of your new cock, Watii. I am pleased. When our first acolytes begin to arrive, I shall give you the task of greeting both male and female now. You will bend each to my service. Aside from serving me, it is your new greatest pleasure.”

Images flashed in her mind as she saw herself claiming zebra after zebra and inducting them into the service of Shauku the Passionate. Watii felt her new addition swell to its full length, large, but not nearly as large as her Master’s. And she could feel it getting ready to unload for the first time.

“Master… I think… I’m going to…”

Shauku stroked faster, pounded faster and everything else. Watii couldn’t think. She couldn’t act. She could only obey.

They became one hungry, lusting cycle of endless need, even as a tiny marble of thought bounced around in Watii’s sex-soaked mind.

Watii exploded, first from her cock and then from her pussy just as Shauku unleashed another dose of seed into her. Jets of white burst forth from Watii as the alien feeling of a cock going off nearly overwhelmed her. It was only the strength of her Master that kept her upright.

When they were done, they both remained upright and shivering.

“You have done well, but there’s one last thing to do. The last potion.” Shauku said in that strong, sexy voice. “Drink it… and gain your heart’s desire.”

Her only desire right then was to be the mate of Shauku the Passionate forever. So, though Shauku had to move with her a little, she stretched out a hoof and grabbed it.

“Already, the one that once inhabited this body has been fully consumed by my superior essence. Now, Watii, you must consume anything left of the creature you were. Then, our work will truly begin as we slowly seduce those fools who banished me. We will retake the Council and rebuild it into mares and stallions eager to embrace their passions!”

Watii smiled back at her beloved Master. “Master… I serve you in everything… but if I may speak?”

Shauku twitched her hips. Watii’s pussy—and cock—spasmed in response.

“You may.”

“That sounds like you plan to take over the world.”

“Nonsense,” Shauku scoffed. “If I did that, I’d never have time to work. Just some simple revenge, then back to work. Nothing more! Enough. Drink. Become perfect. Become what you’ve always meant to be.”

Author's Note

I totes had fun with their names~! I know lots of people go with Z-only names for zebras, but we only know that's a thing for griffons! Instead, I went with Swahili-based names~! They are were more fun~!

Seriously, tho, somepony brainwash me like this~

Lemme know if I made a mistake through PMs~! :3