The trip back to the Stables felt like it was taking forever as her transformation continued. She had a harder time staying on the stallion's back, her body becoming heavier and heavier as they moved down the trail. Her breasts finally reached their new position as they became her new teats and her vagina shifted until it was a perfect size and shape for the mare she almost was.
She finally couldn't stay on there any longer as she pulled back on the reins a bit to pull the stallion to a stop. She climbed down off his back as she moved unsteadily before she fell forward onto her hooves. She let out a neigh as her neck stretched out and her face pushed out into an equine muzzle. Her tail finally grew out of her backside and her transformation was complete.
Jessica looked back at herself and admired her new equine body. This wasn't so bad actually, her body was already getting used to it as she nervously stepped forward. Her human mind was still intact, was kind of a shame that her now ex-boyfriend didn't have the same advantage. He moved next to her and nuzzled her gently, a little curious about the new mare that stood next to him.
Jessica flicked her tail a little as she thought about what to do next. She could feel heat and arousal growing in her new equine vagina and she was an animal now, maybe she should let him mount her. What harm could it do? She was already an animal and Monica said she could turn her back.
She finally decided to...