Stella and her children raced away from the building, Robert right behind them. Knowing she couldn't outpace the charging wolf, Stella pulled her children into a nearby stable and shut the door. Scraping could be heard at the door outside as Robert pawed at the door.
Stella and her children looked around the building frantically for an exit. "I think there's an exit this way," Stella exclaimed as a low heat began building within her crotch.
The children followed their mother, wanting to escape this nightmare as soon as possible. As Stella began pushing the stable exit open, Vivian caught an alarming sight.
"Are you feeling alright mom?"
"Of course honey. Now, let's go! We need to get out of here."
Vivian directed her brother's gaze towards her mother's crotch. The two watched as an oblong shape could be seen working its way away from Stella's crotch and down her pant leg. Stella was distracted by her son's gasp just as she was about to begin sprinting away from the building towards the exit.
"What is it Michael?"
Michael could only point. His mother quizzically looked down, face going white as she saw the growing member in her new jeans. The family watched as the bulge grew, continuing further down Stella's pant leg. Before long, it was clear that Stella was packing a small penis in her jeans.
"We need to go." Stella exclaimed, ignoring the growing appendage. She grabbed her son and daughter's arms and pulled them into the open. All three family members ran towards and through the zoo's gates. Michael and Vivian directed their mother towards their father's car, which Stella had fortunately grabbed the keys for before leaving her husband.
As the siblings ran toward the car doors, they were distracted by a groan from behind them. They turned and were met with an alarming sight.
Stella was facing them, hands on her knees as she looked at the now throbbing member in her jeans. The penis had almost extended to her knees and was beginning to engorge with blood as she breather heavily. Two growing orbs could be seen in the crotch of the jeans, as the newly freed mother's balls began to grow in and feed her new member. Stella met her children's shocked eyes and began slowly making her way towards the car. Yipping could be heard in the distance as their pursuers grew closer.
Both children moved up next to their mother, supporting her as she made her way towards the car door. By now, Stella's cock had grown rock hard and was causing a massive bulge in the tight zoo jeans. As they walked, Stella began to feel a pleasant feeling in her new appendage. Pre-cum slowly began to work its way out of the erect shaft.
Unfortunately for the family, Michael's hand had been rubbing against his mother's new penis as she worked her way towards the car. This pressure slowly coaxed Stella's lust; battering the mental barrier she had built to protect herself from her changes. As the trio reached the car door, Stella's dam burst. With a loud groan, Stella shook as she ejaculated sporadically through her jeans.
Michael and Vivian jumped back in surprise as they watched their mother thrust and spray her ejaculate all over the car door. Stella's hands went to her equipment as she encouraged the continued spray of spunk all over the car. This went on for some time, as Stella continued masturbating against the car door. Eventually, the torrent slowed, with only occasional spurts coming from their mother's equipment. Stella was left hunching over the family car, streams of cum flowing down her legs and pants.
"Mom, are you okay?" Michael asked towards his mother's backside.
He was answered by a tearing sound. With a loud rip, a wolf tail erupted from the back of the hunched mother's jeans. The tail grew out, extending down her firm backside. Pointed ears began growing through Stella's pony-tailed hair and her hands became paw-like in appearance. Claws could be seen extending from the formerly well-manicured nails on Stella's hand. Other stretching and cracking noises could be heard from Stella's front.
"Michael, Vivian, I love you both. Now please go" Stella spoke in a deep, alien-like voice. The soccer mom turned towards her children showing her changes. Stella's face had developed into a part muzzle, eyes and teeth becoming wolf-like in appearance. A knotted point could be seen extending from her jeans as her new male equipment had become wolf-like in appearance. Finally, the former mother's breasts were dwindling, milk spurting through Stella's shirt occasionally, as her chest barrelled out. "Please go" Stella tried to utter as her body shuddered with the changes.
An inhuman groan or howl interrupted Stella as she began shuddering. Cum surged from her fully erect penis, as it finally broke through its tight denim constraints. The mother's face by now had become that of a wolf, as fur began enveloping her body. Michael and Vivian watched in horror as their mother stood in her torn zoo clothing, now bearing the musculature of an anthropomorphic male wolf. Her hands grasped the new wolf penis and began rubbing insistently. Before long, the changes completed as, with a final spray of cum, Stella was forced onto her feet and hands.
"Mom?" Vivian quietly asked.
Stella's face snapped up, no longer bearing the loving features of a soccer mom, but those of a fierce predator. Stella inched towards her children, as, Robert, her female companion joined her.