Picking her up with his thick hands, the deer-man carefully aimed his erection at Jeff's wet lady-hole. With one quick thrust, he was inside her, and began bucking wildly as his tip went in and out of her warm folds. Jeff could hear him utter strange grunting sounds as the pressure began to build and his cock started to fatten with more blood. He was getting ready. Suddenly, and with no warning, his penis started pumping white creamy sperm into her womb. The deer-man's orgasm lasted well over four minutes before he finally let his limp penis fall out of Jeff's vagina and placed her on the ground gently. Then he sat down next to her, for now they were fully mated.
Because her anatomy was part human, Jeff's gestational cycle occurred quickly, and she was only pregnant for a week or so before giving birth to a beautiful baby female fawn. But her mate wasn't satisfied. He insisted on having sex again, and this time she produced another female fawn. A third time, and she finally gave him what he wanted most, a son. Their children grew up fast, and for a time, they had a happy family, with the deer-man spending his days teaching his children to survive in the quiet, peaceful woods.
But one day he returned with a worried look. Men with fierce eyes and short tempers, carrying weapons and tools for killing, had entered the woods, and he feared they would kill his mate and offspring. He wanted to flee deeper into the woods, but Jeff was nervous. She did not know the forest, and even if they did flee, they would eventually be caught, for there would always be a stronger, more determined predator seeking them out, whether it be wolves or men.
The deer-man thought through his options, for he had a far more developed brain and therefore a higher degree of intelligence, and he realized that to live, he and his family would have to blend in with the world of men. They would lose their animal traits and instincts, and become human once more.
He told his plan to Jeff, who agreed to help. While her mate watched over the children, she returned to her still deserted home and found the machine that had made her what she was. Scrolling through the options, she found a new one: "Humanize".
It had to be the right one, so she pressed it before returning to her family. As she made her way back, she could feel her fur starting to fall out, leaving behind bare skin. Her hooves split apart into toes, her tail shriveled up and fell off, and her middle fingers grew back. By the time she found them, her muzzle was gone, and her face was now brown and tanned, the ears covered by dark hair that fell to her chin.
Her mate was no longer a deer-man, but now just a man, with the same tanned skin and short hair. Their fawns were now young adults, the girls with long hair and delicate features, and her son with the same face as his father, only younger. Just then, the beam of a hunter's flashlight swept over. He was shocked to find two parents and their naked children in the middle of the woods, but he did not question them. Instead, he and his wife clothed and fed them, and offered to return them home.
Jeff, using the name Jennifer, said that would be nice, and guided them to her house. There, she put her children to sleep before falling into the arms of her mate in his own bed. It felt strange to be human again, but they would make it work, for they were a family, animal or not.