At a magician show

You were at a magic show, sitting at the front table. At the stage, a magician was performing tricks. Among the various tricks done in stage, some of them look suprisingly real. Many of those who assisted the magician got moved offstage after he's done with them.

"For my next trick, I'm going to need another volunteer. How about you, sir?" The magician said. When he pointed at you, you suddenly find yourself at the stage

"What the... How did you do that?" you said

"Great, now step on the hoop and stand still for the rest of the trick." He pull out a metal hoop and placed it in front of you. You do as he said and the magician chant a incantation. The ring start glowing. The magician pull out a wand which lift the hoop off the ground. When it rise, you and the audience were shocked. Below the hoop, you could see your body gradually changing into a feminine one. When it reached the chest, it had some difficulty of getting throught. But after a while, it manage to pass and left breasts on your chest. However, the ring stop glowing and fell down, leaving your male head and neck intact.

"Hey!" you said. Apparently, you still have your voice.