Sean felt an energy flow through him as the changes take effect. As he stood there, the first changes he noticed were that he was getting shorter. Not much, but just a few inches shorter. Then he felt a tightness in his waist as it narrowed, and then as his hips rearranged. His legs shifted slightly as they adjusted to his new hips, and they became a tad more shapely. His head started to change; his hair lengthened to shoulder-length, and his arms became more girly.
Suddenly he felt a tingling in his groin. His penis started to shrink into him, and while he couldn't see it, his balls retracted into him, between a rapidly-forming slit between his legs. Soon enough, there was a neat pussy between his legs. He felt his chest begin to get more tender. His nipples expanded and started to push out against his shirt. They became much thicker and he could feel the sensation of his shirt against them. Soon he had perky B-cups on his chest.
As the changes finished, Sean suddenly felt a rush of female hormones through his system. His nipples got very hard and he could feel a wetness between his legs as the horny setting took effect. He started to imagine what it would be like for a girl to play with his titties, but then those thoughts turned to having a dick in him...Sean was a little shocked at the sudden thought, but wondered what to do next.