For Jacob using a horse cock on a human pussy had felt far superior than using it on an ordinary horse pussy. This made him decide to change his harem from horse to human. He first wished Brightman his former stablemate had a human body. This wish had some unexpected results due to the difference between horse and human lifespans. Where a horse in their late teens once stood was now an older woman who could have been Kelly’s grandma. But despite her age she looked fit and voluptuous.
Jacob had previously wanted nothing but fillies in his harem, but now looking at the human Brightmane made him realize he was being close minded. Wanting to test out some more mature women Jacob wished the two Perth horses had their human bodies again. Again Jacob hadn’t thought out his wish very well and while Mrs. Perth was now a suitable member for his harem the wish hadn’t changed Mr. Perth into the human version of the fucked filly he had been but had returned him to his original human body. Jacob now looked at his twin except the old Mr Perth was filled with a whole load of horse cum from when Jacob plowed his filly form. He was still recovering from that and wasn’t able to take advantage of his returned body before Jacob wished that the old Mr Perth had a body similar to his daughter’s. This wish saw the man drop in age, shrink in height, decrease in musculature, and increase in feminine appearance. They weren’t completely female as between their now smooth hairless legs was a child sized penis and balls, but Jacob was now too impatient to change them further. Jacob quickly sent Brightmane to tend to the transformed Mr. Perth and Kelly and moved his focus to Mrs. Perth.
When Jacob had been a horse he had never really seen Mrs. Perth as a woman merely the kinder of his masters, but now he could see that she was perfect breeding material ready for the taking. As Jacob approached her Mrs. Perth she was trying to decide wether to try and resist what was about to happen or just accept it. The magically induced sexual Heat had been removed when she returned to human but she was left feeling horny and the sight of her husband transforming into the perfect fuckable femboy didn’t help any. She took one last look between her feminized husband and the approaching horse cock and decided.
With a soft plea for him to go easy on her Mrs. Perth got on her hands and knees and began to submit to the massive slab of meat. Jacob was more than happy to stand there for a long while and watch the formerly faithful wife put her best efforts into cleaning his cock and preparing it for her impregnation. After he had gotten properly hard again and she had moved to massaging and kissing his huge balls he made a quick wish that her holes would be stretchable enough for him and he grabbed her head then plunged himself in. Her shock was silent as any attempt to scream or moan were impossible as her mouth, throat, and esophagus became completely filled with cock. Her eyes were frantic and her hands reached to her own chest where she felt her body bulge from the invasion of the monstrous object. Jacob could somehow feel her hands rubbing his cock through her chest and felt thrilled by it. He pulled himself outward until he was just in her mouth and he felt her take a breath through her nose then he shoved himself right back in causing his huge balls to slam into her throat and chin. He continued to use her like this for a while until he felt close to cumming.
Jacob wanted to save his seed for her womb so he pulled himself fully out and watched her slump to the floor. Her face was a mess of tears, precum and saliva. She had little time to recover because Jacob as soon behind her lifting her rear to line it up with his thoroughly lubricated throbbing shaft. Jacob stopped when his wide horse cock head was pressed against her vaginal entrance and he waited for her to move. Mrs. Perth looked forward and realized that in front of her she was being watched by her husband and daughter as she felt her body urge her to push backwards and impale herself on the cock. Kelly’s face showed an understanding for the need that she felt but her husband’s face showed a mix of betrayal and envy. Closing her eyes to her family in front of her she pushed herself backwards away from them onto the waiting cock behind her. With her magical stretchablity the process was surprisingly easy but no less intense as the huge rod expanded her body to fit its shape. She could feel every inch of it and when it got deep enough she felt her womb open up unnaturally and take head of the cock inside. The pleasure was breaking her from its exhaustive pressure as nerves she never knew she could fired of with every other sexual nerve in her lower body. She began to shift and spasm back and forth all over the cock unable to tell if she was about to orgasm or if she already was. Jacob having already been close to release took over after letting Mrs. Perth ruin herself on his cock for a few minutes and pounded into her making her legs and arms jelly. He then pulled her in close and exploded into her. The bulge he formed was truly impressive, less prominent than the one on the small Kelly had been but given that it was nothing but cock and cum truly impressive.
Now that he had fucked all of his former masters in some way Jacob wasn’t sure what to do next. He could fuck Brightmane or the new femboy Perth, or maybe see what Kelly had wish to talk about before their meeting?