It could be due to some sort of magical or supernatural force at work. In fanfiction, there are often all kinds of strange powers. Perhaps a gust of wind created by a wizard or a telekinetic power accidentally targeted her and sent her glasses flying.
Maybe she was startled by something suddenly. For example, a loud noise or a strange creature appearing out of nowhere in the fanfiction world. This sudden shock could cause her to jump or move quickly, making her glasses fly off.
The girl was walking through the dimly lit alley in the fictional city. Out of the shadows, a mysterious figure lunged at her. In her panic, she jerked her head back, and her glasses flew off her face, landing a few feet away on the cobblestone ground. She was now left squinting, trying to make out the figure without the aid of her glasses.
It could also be due to an accident caused by another character. For example, if there's a clumsy character in the fanfiction, they might accidentally knock into the girl, sending her glasses flying. This can then lead to an interaction between the two characters that might develop their relationship further in the story, like the clumsy character feeling guilty and trying to make it up to her.
She would likely feel startled at first. It's an unexpected event in a crowded place. Then perhaps a bit of embarrassment as she's suddenly in a vulnerable state without her glasses. There could also be a sense of frustration, especially if she has trouble seeing without them and now has to search for them in a busy, chaotic crowd.
One possible scenario could be that a girl is standing on the beach, lost in her thoughts. Suddenly, a big wave crashes ashore and sweeps her glasses right off her face. She panics at first, but then a kind stranger nearby offers to help her look for them. As they search together, they start to have a conversation and a connection begins to form.
Once upon a time, in a crowded school hallway, a girl named Lily was minding her own business. Out of nowhere, a bully named Jake swung his fist and punched her right in the face. Her glasses flew off and clattered to the floor. Lily was stunned, her cheek throbbing with pain. But then, a kind boy named Tom saw what happened. He rushed to Lily's side, picked up her glasses, and helped her up. Tom then confronted Jake, telling him his actions were unacceptable. In the end, Jake apologized and Lily and Tom became good friends.
The main character could be a shy and intelligent girl named Lily. She's always buried in books and her glasses are like her security blanket. When they get swept off, it's a moment of vulnerability for her. Maybe the person who causes it to happen is a new student named Tom, who then feels bad and tries to make it up to her, leading to an interesting story.
Well, perhaps there's a magical world hidden in the school library. A nerdy girl is exploring it when a gust of wind (from some magical source) sweeps her glasses off. A mysterious character in this world helps her look for them. During the search, they discover that the girl has a special power related to knowledge, and they embark on an adventure together.
Here's another way. 'As she turned to face the chaos that had erupted in the room, a flailing arm from the scuffle sent her glasses flying off her face. They tumbled through the air, the lenses catching the light for a brief moment before crashing to the floor, leaving her vision a blur of shapes and colors.' This description not only tells what happened but also gives a sense of the surrounding chaos.
Once upon a time, in a bustling concert crowd, there was a girl named Lily. She was standing near the front, her glasses perched on her nose as she eagerly awaited the start of the show. Suddenly, a rowdy group pushed through, and in the chaos, Lily's glasses were knocked off her face. She was plunged into a blurry world. But then, a kind stranger stopped, knelt down, and found her glasses. He handed them back to her with a warm smile, and that was the start of an unexpected friendship.
In a fanfiction, it could be due to a long - standing feud. The girl without glasses might be an easy target for her enemy. Perhaps they had a past disagreement over something valuable, like a family heirloom or a secret that the girl knows. Without her glasses, she may not be able to see the attacker coming easily. Or it could be a case of mistaken identity. The attacker thought the girl was someone else who had wronged them. The lack of glasses makes it easier for the mistake to happen as the girl's appearance might be a bit different without them.