Confidently, he said "I wish that I could change my form by speaking it out loud". He felt a small tingle crawl down his spine. He assumed that it meant that he could do it if he wanted. He said "I'm going to transform into a male white centaur". Jon could feel his body morph and change as his second set of legs burst out of his pants. It then forced him to the ground. The horse barrel extended behind him. Seeing the shreds of the pants on the ground made him suck his teeth. He had totally forgot to take them off. When he had finally finished, he looked over his shoulder and saw his tail swish on his hindquarters.
Jon began to trot around the yard. He was totally ecstatic about his new body. However he was curious about something. He said "I'll refer to this body as Form 1 from now on. Form 2 will be my human half remaining male, as my horse half becomes a black tobiano female mare. I want to transform into Form 2 now". He felt an intense tingling from under him as his sheath disappeared. Another set of tingling began in his hindquarters. Jon assumed that it was his new womanhood. Just thinking about it made him hot and bothered. He looked over his shoulder again. He saw his coat changed to black with white patches. His tail was still white.
He could even feel juices leak from his new nether regions. Jon was incredibly horny. "I want to return to my original form" he said. As he changed back, the build up hadn't left him. He collapsed onto the ground with his ass in the air. He squealed as he came harder than he had ever done before in his life. He blacked out for a moment due to the intensity. His ass was twitching and he couldn't get up.
When he finally recovered, he went inside the house and slipped back into his room.
