Gabriel's mother Magda was the Bazaar Jubilee's bearded lady. As you might expect, she was one of the less popular acts the circus had nowadays considering how ideas about gender have changed over the years, and her son Gabriel had always felt very confused and sorry for her. She wanted to retire- half the people who came to the circus thinking she was a funny freak and half thinking she was outdated and harmful was a great strain on her. The night before his birthday she had cried to Gabriel about how she didn't want to do this anymore but wanted to support him, and he had very prophetically said, 'I know, mom. I'm really sorry, I wish I could help somehow."
On the morning of his 15th birthday, his wish was granted. He awoke early feeling odd, and went to the bathroom. His skin seemed tingly all over, and he locked himself in there and undressed to work out what was going on. Over the course of the next minute, before his eyes his body transformed.
His facial features shifted around to look more girlish, his larynx receded, his cheeks softened and his lips turned puffier. He subtly shrank inwards all over, most obviously with his shoulders shifting inwards, his figure turning more petite and his hands and feet shrinking down, before his hips flared outwards subtly. Intense sensations engulfed his chest and crotch as his nipples swelled up rapidly and breasts sprouted under them, and his penis and testicles receded away into a tiny sensitive nub and a slit with an opening leading inside... her.
Fear clutched at Gabrielle's stomach as she realised what had happened. "What..." she asked in her softer, higher-pitched voice, realising even that was different. She stared at herself in the mirror, amazed and kinda terrified by the changes...