You watch as the camera focuses on the kitchen. Your family is standing around the kitchen table debating how to proceed now that they are free. It is clear from the audio that your sister has not yet been informed of what your parents were subjected to.
You continue to watch the screen as you see your mother begin subtly sniffing. No one takes any notice of your mother's actions and the initial signs of her impending change. You however notice a slight tightening in the rancher jeans she picked up when escaping from the zoo. The tightening then begins to turn into a slight bulging; tenting shape and you see the first real effects of the change kicking in.
Your mother's face, at this stage, has become a bit flushed as she begins to feel the heat from her progressing changes. Putting it off to nothing, she continues to focus on the conversation between your father and sister, unaware of the growing bulge in her jeans. Unfortunately for your mother, this blissful ignorance could only go on for so long. You watch as the bulge all of a sudden thrusts forward in her jeans and stretches the tight material to its limits. Your mother's eyes go wide as she feels her changes begin in earnest.
Your father and sister look in surprise at your mother as she gets up from the table. Your mother appears to be in some form of discomfort as she says, "I think something's happening". Before anyone can say anything, your mother lets out a long groan and cums all over the table. Your sister begins screaming and your father has gone white as your mother begins thrusting hysterically at the air and continues ejaculating all over her previously spotless kitchen.
As you watch in horror, you see a tail bulge and spring free from the back of your mother's jeans. Your mother's hair begins to form into a mane, as her face begins to stretch into a muzzle. At this stage, the rancher jeans and belt are struggling to cope with the growing horse equipment. Both break free as your mother lets loose one last large thrust and cums spectacularly all over her kitchen. Her penis begins to lengthen into that suited to a full stallion and two large testicles begin to fully develop.
Your mother's body continues to go through changes, as her breasts retreat into her chest and her body barrels out. Hands and feet turn to hooves and her shirt tears free from her chest. All remaining vestiges of your mother's humanity fades away as she now stands in your kitchen a full stallion.
Your mother, with the last traces of her humanity and speaking ability, forcefully urges your father and sister to flee. Then, with a loud whinny, your mother cums one more time before falling onto her hooves in the middle of your kitchen.
Your father and sister stare in horror at what has become of their darling wife and mother. Your sister tries to go help your mother, but is pulled towards the door by your father as he tries to escape from the house.
"Not so fast" you hear the woman say. "Onto part two".