Transmogrified

He walked up behind the class nerd, Jerry, and his friend Jake. He was 8th in the line of 30 people. He watched as Jerry walked into the cubicle as it closed. He heard zapping noises and within the course of 10 seconds, a door on the other side opened, revealing a beautiful naked girl who was Jerry a minute ago. The same happened to his friend. After waiting a few minutes, it was his turn. He stepped in and the machine clamped him in. He felt light-headed for the duration as his body changed form. His clothes were sucked away and he felt two growing mounds on his chest. He walked out the other end and into a changeroom in the back. He was then told his measurements by the machine and picked the appropriate bra size. He saw a small green t-shirt and a thin white tanktop