Alice let out a sigh of relief as she saw Patricia, her mother's friend; walk up the path towards Melanie's house. As she continued watching, Alice saw Rachel, Patricia's daughter walk up the path behind her.
Alice quickly threw open the door and hugged Patricia. "I'm so glad you're here! I can't even begin to tell you what's been going on."
"Whoa, wait a second Alice. One thing at a time. What's all this I hear about people changing?"
"Oh yeah, of course. You see-" Alice was just about to begin when she was interrupted by a woman walking up to the house.
"You wouldn't mind if I were to intrude would you ladies? You see, I have to speak with Alice here. I come bearing news of the utmost importance regarding her family"
Alice looked at the woman in confusion. Then she saw the horse carrier parked behind the woman. It was branded with the zoo's logo all along the side. Alice went pale. "It's you isn't it?" Alice could only stammer.
Seeing Alice's reaction, Patricia stepped in front of the two girls. "I don't know what you've been up to lady, but you're not welcome here. You had better leave or I'm calling the police."
"Noble words from a jackass." The woman laughed as she reached into her back pocket and pulled out a small squirt gun.
"A jack-HMPH" Patricia was stopped mid sentence as the woman shot a stream of liquid from the gun directly into her mouth.
"How dare you!" Rachel exclaimed as her mother began coughing. "Are you okay mom! I can't believe she did that."
"Yes sweetie, I'm fine." Rachel's mother responded while slowing her coughing. "I just need a minute to- HAWWW!" Patricia's hand went to her mouth as the bray escaped.
"Mom! What was that? What happened to your teeth?" Sure enough, as Patricia took her hand away from her mouth, the three women could see that she had developed buckteeth.
"Oh this will be fun! You girls may want to get away from mommy. Horny jacks can be a bit unpredictable." The woman laughed as the next changes took place.
A red flush filled Patricia's face as a pulsing could be felt in her nether region. She subconsciously began pushing as the shape extended. Before long a bulge had built up in Patricia's tight mom jeans. Patricia watched her changes with dismay. "Girls, maybe she's right. I feel really odd. I don't know what's happening to- HEE HAWW."
Alice and Rachel were startled by the loud bray from Patricia as she was interrupted by her next change. Patricia's look of horror slowly transformed into a dopey bucktoothed grin as two large orbs deposited into her jeans alongside the growing bulge along with strong male testosterone. Patricia's new balls grew in size as testosterone flooded her mind. The penis in her pants began growing in size again, eventually stopping as it reached the end of Patricia's tight denim confines. Rachel gasped in shock as she looked at her mother, now with full balls and an erect penis tenting her jeans.
"Girls. You need to get away! I don't feel- HAWW!" Patricia brayed as she experienced her first male orgasm, expelling her new seed through the tight denim constraints. Patricia looked down at her new equipment in horror and then back up, meeting the worried eyes of her daughter. "I'm sorry." Patricia mouthed before her next changes began.
Both girls watched in shock as Patricia began slowly grinding her equipment against her jeans. Before long, a second bray escaped Patricia as she came into her mom jeans again. As Patricia's grinding continued in intensity, it wasn't long before she was braying uncontrollable as she emptied her new balls over and over again.
Rachel ran to her mother, trying to break her free of the changes. "Mom. Please stop! You have to regain control!"
Rachel's begging brought some clarity back to Patricia's vision. "Oh god! What was I doing! I'm sorry, I think I've got myself under control now."
"Thank goodness!" Rachel exclaimed as she ran and hugged her mother, ignoring the diminishing bulge in Patricia's jeans.
"Oh no. That won't do." The zookeeper muttered as she pulled out her spray gun again and put another spray into Patricia's face.
"Ugh. What did you do?" Patricia muttered as her mind began to cloud again. "Oh my, I think something else is- HEE HAWW" Patricia pushed her daughter away and brayed louder than she ever had before. Propelled by the additional spray and lust, Patricia's penis surged forward through her mom jeans. A loud snap could be heard as Patricia's undergarments were torn and the zipper on her jeans broken, exposing her new penis to the world. Patricia's balls swelled below, pushing against their denim confines. The additional testosterone was too much for Patricia as she brayed again and ejaculated spectacularly over both Alice and her daughter.
Both girls wiped cum from their faces, as they witnessed Patricia frantically trying to unbuckle her jeans and release her growing testicles. Her efforts were futile, however, as her hands had begun developing into hooves. Patricia's hair grew wild, turning into more of a mane than the conservative hair of a soccer mom. Patricia's face followed the other changing parts of her body, as it pushed out into a donkey muzzle. Patricia's ears completed the change as they stuck up above her new mane. The final change to her physique then occurred, as Patricia's formidable breasts retreated into her chest leaving her looking masculine in appearance.
Patricia, however, was not concerned with these changes. She was more focused on quenching the lust brought on by the zoo's spray. She tried to rub at her new penis with her hooves, but knew she needed something else to release her pent-up seed. She lunged at the nearest body to her, hoping to get release. Unfortunately for Patricia, this was her daughter Rachel. Rachel was knocked backward as her mother took up position on her rear.
Rachel called for her mother to stop and regain her humanity. She began to feel sharp jabs and rubbing as her mother madly humped at her rear. Alice tried to pull Patricia off Rachel, but was forced back as, with a bray, a donkey tail broke free from the back of Patricia's remaining mom jeans. Her shirt tore off her back as her chest finished barreling out. Before long, Patricia was left grinding against her daughter's rear in nothing but her shredded jeans. These eventually gave away as with a last long bray, Patricia came forcefully all over her daughter's behind. Patricia's belt snapped off as her giant donkey balls surged in size and hung free below her diminishing shaft.
Rachel pulled herself away from her mother in shock, horrified at what had just happened. She watched as Patricia lumbered off; face a goofy donkey grin as residual cum fell from her penis. As she got up she felt a spray hit her face.
"We don't want to leave mummy all alone now do we?" The woman laughed.