Jon walked over and sat down on the bed as he watched Alexis take her clothes off. After a minute she walked over to the bed totally nude, smiling at him.
Her now free, giant breasts and udder jiggling as if full of liquid as she walked. She had a tail now and small horns poking out of her forehead just under the hair line. As she ran one hand over her udder he saw that the fingers had fused together to form 2 big fingers that ended in a big dark hoof-like nail. He was startles to see that her Vagina was now leathery and black, as he watched it seemed to be pulsating and dripping a slimy fluid onto the carpet.
Alexis stopped at the side of the bed and smiled at him. "Jon, I am sooooo horny right now. Take me...." and she pushed him back onto the bed and began pulling his clothes off. Once he was naked she crawled up onto the bed on top of him and reached down to guide his very erect penis into her slick vagina.
With a soft moan (that sounded very much like mooing) she sat down sliding him all the way inside her. Alexis closed her eyes as she began to pump Jon. Deep inside all she wanted was to feel the splash of his seed inside her womb. She began pumping him faster, savoring the way he cock stretched her aching pussy out so that she could feel every vein on it. As orgasm after orgasm racked her body her changes finished, and finally she hear Jon gasp and a warm stickiness splashed inside her.
Looking down at him she decided: