Pulling out the horse Dildo, Amanda looked at how massive it was! Quickly seeing how long and thick it was, she hesitated putting it in her pussy let alone her mouth. As Amanda continued to look at it, something in her couldn't get out of her mind. However once a stream of fluids came rushing out of her vagina something in her mind had her put the huge tip of it in there. In a matter of minutes, her hands quickly transformed into front hooves and were as long as her legs which had become her rear hooves.
As the Dildo worked it's way in further into Amanda's now enlarged pussy, her hair quickly became her fur color. One of her orgasmic screams sounded like a horses whinny, looking at herself as this horse she was becoming in a mirrored wall, the last human words she said was, "I am a beautiful mare!". In one explosion of semen, the horse Dildo slid out as the final stages of her transformation. Looking at what she had become was too much and she quickly fell asleep.