Once, there was a boy who had a penchant for mischief. One day, he found himself being shoved into the door of the gym where the witch-girls practiced their gymnastics. It was an accident, but the girls didn't see it that way.

Dressed in colorful, shiny gymnastics outfits, the girls stared at him. They decided to teach him a lesson. With a mischievous grin, they began to chant a spell.

The boy's form began to change. His hair grew longer, his clothes transformed into a shiny gymnastic swimsuit and tights. The boy was no longer a boy, he was now a girl named Tanya.

Tanya was scared, she didn't want to perform gymnastics. But the witch-girls were insistent. They began to teach her, encouraging her to join them.

Slowly, Tanya began to enjoy herself. She found that she liked gymnastics, she liked the feel of the mat beneath her feet, and the way her body moved.

One day, a woman named Irina entered the gym. She was surprised by the noise and asked the witch-girls what was going on. They told her about their prank on the boy.

Irina was shocked and tried to undo the spell. But it was too strong. She needed the help of the witch-girls and a few days to undo it.

However, when Irina asked Tanya if she wanted to change back, she hesitated. Tanya liked being a girl, she liked gymnastics. She decided to stay as she was.

So, Tanya stayed Tanya. She trained hard and excelled in gymnastics. And the witch-girls, though they initially intended to punish the boy, found a new friend in Tanya.

As for Irina, she learned a valuable lesson about the strength of magic and the unpredictability of the heart. She promised herself to be more careful with spells in the future.

And so, the gym continued to be a place of laughter, friendship, and gymnastics. And Tanya, once a boy, was now the happiest girl in the world.

It's strange how life takes unexpected turns. What started as a prank became a journey of self-discovery for Tanya. She found a place where she truly belonged.