Wasting no time and certain in what she wanted, Sally turned around and braced herself on the bathroom sink, her pink pussy presented towards Ty. Smirking Ty took a step forward and began to rub his flared cockhead against her entrance.
To give Sally what she wanted some changes would have to be made. Willing it to be so Ty watched in arousal as Sally's vagina began to pulsate and she moaned in ectasy. Her pussy was rapidly enlarging, darkening as it did so, her petite lips extending slighly and growing thick and leathery. Within moments Sally had the vagina of a mare.
"I don't know what you just did, but don't stop. Breed me you stud!" cried Sally, obliging Ty plunged into her new orifice, his huge balls slapping against her ass as he began to fuck her.
As he fucked Sally, Ty willed her to change further, with each thrust she grew larger, until she was a match for Ty. Sally's vagina deepened into her now much larger torso, Ty's cock now able to fully enter her. Fat rippled across Sally's body as her ass expanded and her once thin frame became curvy.
Gasping for air Sally moaned as juices flowed down her long legs. She had barely noticed the changes made by Ty she was so overcome with lust. But she quickly realized something strange was happening to her as Ty made his final changes.
Before her eyes Sally watched as her once petite breasts ballooned out into two huge melons, her errect nipples darkening to match her vagina. She gasped as what could only be a tail shot out above her ass, blonde hairs coating it, and her ears morphed into a horse's and moved to the top of her head .But the most drastic change came from Sally's crutch as she rapidly grew additional breasts resembling a horse's just in front of her legs.
Before she could protest Ty grunted and began to empty his balls into Sally. His huge pulsating cock drove all thoughts from Sally's mind and she barely remainded standing, her legs shaking and her tongue hanging from her mouth. Ty wrapped his arms around her to keep her upright as he cum seemingly without end, the huge amount beginning to distend Sally's stomach.
After an intense fifteen minutes of cumming Ty pulled out of Sally and she slumped to her knees, cum flowing from her gaping sex. Her stomach now made her look 7 months pregnant, such was the volume of cum within her. Before she fully regained her composure Ty needed to decide what to do next, Sally had wanted him to fuck her, but she hadn't necessarily wanted to be turned part horse and impregnated.