Now a massive and powerfully muscular anthro horse, Ty stood in the mirror admiring himself. He turned to the side, half kneeling on his hooves because of his sheer size in the small upstairs bathroom, and admired his powerful biceps and protruding pecs. This was to say nothing of a solid six pack that flexed as he moved, or the incredible size of his arms and legs, or the chiseled shape of his back and powerful bulging spine. He grinned a toothy horse grin as his cock bopped rhythmically with the beat of his excited heart, still a massive size, but now present on a body meant to handle it. Experimentally, his tip just inches from his longer mouth, Ty bent his muzzle down and found he could easily touch his nose and lips to his cock tip.
He couldn't resist. Opening his mouth wide, Ty took his flared tip into his mouth, leaned back against the wall, and began sucking on his own massive horse prick. The sensation was beyond any pleasure he had experienced as a human being, and he pulled his tip and a good length of cock into his mouth as he began to hungrily bob on his own dick. His big powerful hands gripped and stroked his member as he tasted and gulped down his own pre, his tail swished behind him. Ty knew he wasn't going to stop now, and began to break into a hot sweat, his musky horse smell reaching his nose and turning him on more as he sucked and sucked. His huge member, already straining to come, began to grow massively tight and warm, pumping pre frantically. Ty increased his sucking to a feverish pitch, his huge legs snapping out and one hoof smashing a hole into the wall across from him, and one hand jerked his meat while the other fondled his balls.
An intense white light blinded Ty's brain as he unexpectedly blew a torrent of boiling cum down his throat, gagging a bit, and threw his head back, every incredible muscle pulling and twisting as he came... and came... and came! When the eruption of thickly streaming jizz finally subsided to the last few trickles, spurts, Ty opened his eyes to find his fur bathed in his own jizz from chest to legs, his black fur matted and wet. He panted in exhaustion, saw the hole in the wall, laughed with his deep voice, and decided he liked this new body.
* * *
Clean up had been easy. Ty simply willed everything back to normal, the hole in the wall was gone, and he was now a clean and pristine anthro horse. As an afterthought, he had made it so that his big balls quickly refilled with every orgasm, and now they were again filled to bursting with hot cum. His massive member had shrunk and retreated into a big protective sheath between his legs, though it was deliciously male and prominent.
Now comfortable, his new animal sexuality sated for now, the giant anthro horse sat in the living room deciding what to do with himself. He considered he was alone, at least for a few hours, and he could whatever he wanted. His ear flicked and he grinned to himself. No, really, he could do whatever he wanted.
Ty stood up excitedly, forgetting he was nearly eight feet tall and smacking his head on the ceiling sharply. "Ow! Dammit!" He said, rubbing the top of his horse head and snorting.
Suddenly, it hit him. He couldn't just... go out... now that he was a nearly eight foot tall massively built horse person.
...Or could he?
"I want it to be normal that I'm like this now." Ty willed, and there was a strong sick feeling in his stomach. The weird feeling quickly subsided and he wondered how he would test whether or not it had worked. Something felt off...
* * *
After a few deep breaths, anthro horse Ty ducked under the door frame as he stepped outside on the front step. Across the street, he saw an old guy cutting the grass, and beside him, his neighbor Mrs. Paulson was out getting the paper in her robe. She stopped suddenly, looking in his direction.