Today, Adam and Evelyn had the unenviable job of washing the zoo's sole hyena. Kei was an albino spotted hyena of quite a large size. The zoo had kept the hyena for many years, longer than what a hyena's expected life expectancy should be, yet Kei seemed as healthy and fit as ever. Due to the peculiar genitalia of the spotted hyena, no one was really certain whether Kei was a boy or a girl. The zoo had tried to pair Kei with hyenas from other zoos of both sex, but Kei simply snarled and snapped at any other hyenas that got close to it, which was the main reason Kei was the sole occupant of the hyena exhibit.
Despite its antisocial behavior towards other hyenas, Kei was a well-behaved beast. Nevertheless, its white fur and large size was off-putting. But the really creepy part about Kei was the way it stared unblinkingly at people. Many people have claimed there was something intelligent and unnerving in its eyes, which made most visitors not linger long at Kei's exhibit. To offset people's reluctance to be near Kei, the zoo put up a few plaques that told about the interesting African folklore regarding the spotted hyena.
Evelyn paused to read one of the plaques. "Huh, did you know the African people believed there were werehyenas?" she commented, "They didn't actually call them 'werehyenas', they were called 'bultungin' which literally means 'I change myself into a hyena'."
"In Ethiopia, they say that an albino hyena called the 'King of Hyenas' has great powers," said Adam before glancing over at Kei and said, "You hear that? You might be the King of Hyenas."
"Kei could also be the Queen of Hyenas," said Evelyn pointedly.
"Well, when we're washing Kei, you can check to see if it's 'king' or 'queen'," said Adam before they headed into the exhibit. Kei walked over to them, seeming interested in the buckets they were carrying. "No, Kei, no food this time," said Adam, "It's bath time."
"Just be a good boy...girl...hyena and you'll get a treat later," said Eve. Even up close, it was impossible to tell if Kei had an actual penis or a female pseudo-penis formed from an oversized clitoris. Even checking the scrotum didn't do any good as it could actually be the sealed-up labia. It was a wonder that spotted hyenas could mate at all.
But male or female, Kei was willing to behave. Adam and Evelyn hosed off the hyena before they started running the indigo shampoo through its white fur. As they scrubbed, they began to notice an odd tingling sensation in their hands. It mostly focused on their palms, but it seemed to be spreading further. Eventually, Adam pulled back his hands to see what was wrong with them, was there some kind of irritating chemical in the shampoo. He soon saw that the situation was a lot more serious than that as his hands now resembled paws, complete with pads, claws, and dark brown fur that was spreading up his arms. "Evelyn, stop using that stuff!" he shouted.
Evelyn pulled back her hands and saw that they were in the state as Adam's dark grey fur already halfway up to her elbows. "Oh my god, we need to get help!" she yelped. The two of them turned to run out of the exhibit when they heard a deep groaning sound. They both turned to look back at Kei. The hyena didn't appear to be changed, but its eyes were now glowing bright green.
As soon as Adam and Evelyn looked into Kei's green eyes, their fear and desire to flee completely melted away. "We need to finish what we started," said Adam in a dull voice. Evelyn nodded before they walked back to the hyena. They lathered their hand-paws with more shampoo and started scrubbing the hyena. As they continued to scrub, the changes progressed further up their arms, covering them with dark brown and dark grey fur. But the changes weren't excluded to their arms. Their feet started tingling and feeling very uncomfortable in their shoes. They bulged and threatened to burst open, but the two zookeepers only focused on bathing the hyena. Not long after that, their socks and shoes split open, revealing paws that were not different from Kei's. The remnants of their footwear soon fell off as fur spread up their legs, which altered so they could walk more effectively on their paws. Their lower backs squirmed a little as extra vertebrate started to form and began protruding from their spines.
Despite the zookeepers increasingly losing their humanity, Kei's physical form didn't change at all. Instead, the green light in the hyena's eyes grew brighter. The green light was soon spreading over its body in decorative tattoo-like patterns. The green markings stood out in sharp contrast with Kei's white fur. As more light spread, the patterns seemed less like tattoos than bindings, snaking across Kei's form like chains. Pretty soon, Kei's body was completely covered in green markings that pulsed with light. The light grew brighter and brighter before with a sound like snapping ropes, they all broke off the hyena with such a bright flash that the mesmerized zookeepers stopped their scrubbing to shield their eyes.
The high-pitched sound of hyena laughter could be heard amidst the blinding light. But as the laughter continued, it changed pitch and tone. It grew deeper and more human-like, sounding less like animal excitement and more like triumph. Eventually, the light faded and Adam and Evelyn were able to open their eyes. Standing between them was a large white hyena, only this one had a humanoid build. Its body was a mix of masculine and feminine attributes, with the large defined muscles, wide shoulders, and towering height of a man yet the wide hips, relatively small waist, and large breasts of a woman. Between the hyena's legs was a furry round sack with a fleshy protuberance extending above it. "I am free," said the hyena creature with an African-accented voice that deep, but with feminine tones, "The shaman's spell binds me no more. Finally, I can use my powers again."
"So you are a queen," said Evelyn, looking at the hyena's breasts.
Kei chuckled and said, "Actually, I'm both male and female, what you would call a hermaphrodite."
"How does that work?" asked Adam.
"Not easily, I can tell you that. Not like what you humans have," said Kei. She reached out and pulling the shorts of the the two humans down, taking underwear with them. The humans, still affected by her magic, didn't resist. The fur on their arms and legs had progressed up to their knees and elbows and pulling down the shorts revealed the hyena tails that have grown from their lower backs. Kei looked between the two before reaching out with her hands and feeling their crotches. Adam groaned as Kei started rubbing his dick while Eve gasped Kei traced the edges of her pussy. "You women have such an easy time of it, being able to accept a male's length and seed with little problems," said Kei, "And you men can use your members with a lot more versatility than what my kind can."
Adam and Evelyn only moaned in pleasure from the hyena's administrations. They didn't notice the green glow coming from the paw pads that was affecting their bodies. Adam's dick started to become longer and more pointed, his pubic hair thickening into fur. At the same time, the flesh behind his scrotum was starting to part, opening up a new orifice. At the same time, Evelyn's clitoris started to grow bigger, extending further and further away from her vagina and becoming thicker. As fur spread across her groin, more space opened up between her growing clitoris and her vagina. The space was soon filled in as a pair of round lumps descended and started swelling. Meanwhile, Kei's ambiguous genitals was also shifting. The more bestial traits were softly diminishing and the member thickened as it became more suited for one purpose. The removed traits soon found home in another location as a new hole opened up behind the sack.
When Kei took her hands away, the three of them now had functional genitalia of both sexes. Adam reached behind him and lightly fingered his new pussy while Evelyn grasped her new cock, both of them moaning in appreciation. Kei was also feeling hir altered tools. These will make mating so much more efficient. "I think we need to break in our new equipment," shi said suggestively. Adam and Evelyn nodded in agreement. Adam bent over, showing his vagina to Kei while Evelyn went behind Kei and lined up her penis with Kei's pussy. Once everyone was in position, they closed the gaps. All three moaned as they penetrated and were penetrated. This was like nothing any of them had felt before. It didn't take them long before all three started moving together, pushing and pulling in turn.
However, Adam and Evelyn's changes were far from done. The fur spread from their legs, tails, and groins until their lower bodies were all covered and started spreading up their torsos. The fur on their arms spread up over their shoulders and started moving down to meet the fur coming up. Adam moaned as his new pussy was stretched by Kei's dick. He didn't particularly noticed how his hips were getting wider, his ass rounder, or his waist tighter. When his nipples pushing on top of inflating breasts, he welcome the change. Evelyn was eagerly pounding her dick into Kei's pussy, her movements becoming more vigorous as her muscles bulked up and her shoulders widened. The changes soon encompassed their heads, faces extending into muzzles while ears moved to the tops of their heads.
Eventually, the trio hit their climax. They gave yelping cries as they emptied out or were filled up, both in Kei's case. Inside the hyena exhibit were now three anthro hyenas, all of them obvious herms. One had dark brown fur with a slightly lighter mane while another had dark grey fur and a black mane. The third hyena, a head taller than the others, was all white and quite obviously the leader of this clan. The other two will be following hir orders, whatever they were.