First sentence for a story: Once upon a time, there was a little girl who loved to explore the forest behind her house.

One possible story could be that Lily lived in a small cottage at the edge of a forest. She was an adventurous girl and often explored the forest, making friends with the animals there.

Well, it could be that the little girl faces some difficulties in the village, like dealing with mean kids or trying to find a way to help her poor family. She might then go on a journey within the village to find solutions to these problems.

Living in the small village, Lily often felt a bit lonely. Her parents were busy with their work. One day, she decided to make some friends on her own. She started a small club where she taught other children how to draw. Soon, more and more children joined. They would meet every day under the big oak tree in the village square, sharing stories and laughter. And Lily was no longer lonely.

She was an adventurous girl. Every day, she would explore the outskirts of the village. One day, she found a hidden path that led to a beautiful meadow filled with colorful flowers. She was so excited that she ran back to the village to tell her friends about it.

A common story that begins with 'Once upon a time' could be a fairy tale. For example, it could be about a princess locked in a tower. A brave knight might hear about her plight and set out on a journey to rescue her. He would face many challenges along the way, like fighting off a dragon or crossing a treacherous river. Eventually, he would reach the tower, defeat the evil witch guarding it, and rescue the princess. Then they would live happily ever after.

She could be on an adventure to find a hidden treasure in an enchanted forest. Maybe she follows a mysterious map that she found in an old attic. Along the way, she meets talking animals that help her overcome obstacles.

She knew she had to return the magic key to where she found it. As she walked back through the forest, the animals thanked her with little gifts. When she reached the old wooden door, she put the key back. But this time, the door didn't close. Instead, it became a permanent entrance to the enchanted forest. From that day on, she could visit whenever she liked, and she became the protector of the forest, sharing its magic with other children in her village.

In 'Once Upon a Time' fanfiction, the concept of 'dom sub' can add an interesting dynamic. It could be used to explore power dynamics between characters like Regina and Emma. For example, a 'dom sub' relationship might be portrayed in a way where one character has more control over certain situations, guiding the actions of the other. This can create intense and complex storylines within the fanfiction world, adding a new layer to the existing relationships in the 'Once Upon a Time' universe.

I'm not sure exactly. You might need to do some research or check reliable sources for that specific information.

I don't have that specific information. Maybe you could check the credits or related literature to discover the author.