Well, in the context of Tamil, fiction means creative works that come from the author's imagination rather than being real-life accounts. It can include various forms like novels, short stories, and more.
There was a barefoot girl who was exploring an old attic. Her little brother crept up on her and started to tickle her sides. She was so surprised that she couldn't move much, momentarily immobilized. She laughed and tried to wriggle free but her brother was persistent. Eventually, she managed to break free and tickled him back, turning it into a fun tickle fight in the dusty attic.
The plot could be that the barefoot girl is in a magical forest. She steps on a strange flower that releases little fairies. These fairies, thinking she is a threat, tickle her to immobilize her so they can decide what to do with her. But as they tickle her, they realize she means no harm and they all end up becoming friends.
One reason could be that she was playing a game with her siblings or friends. They might have decided as part of the game rules to immobilize her and tickle her for fun. For example, a game of 'capture the flag' where if she was caught, this was her 'punishment'.
There was a barefoot girl. She got caught in a silly situation where she was immobilized. Maybe she was stuck in a big pile of soft hay. Some little critters like squirrels or bunnies, thinking she was part of the scenery, started to tickle her feet with their little paws. The girl giggled helplessly. She didn't want to scare the animals away, so she just endured the tickling until the critters lost interest and hopped away.