He wasn't sure when it was that he realised his best friends sister was a girl and not just 'charlie's little sister'. The little sister that he had never paid much attention too, but before he knew it he was paying more attention than he should have been.
He had gone over it in his head so many times; but never could pin point the exact moment he started noticing her as something more than the girl they teased. Of course he always knew who she was; he had known her since they were toddlers but she was only ever 'Charlie's little Sister'.
He had thought it was when she started high school that he started noticing her. He would see her everywhere and catch glimpses of her long dark hair out of the corner of his eye and just stare at her as she laughed with her friends. He couldn't shake her and it only got worse over the years.
He never dared tell Charlie about his little 'crush'. He would kill him; Charlie was very protective of his sister. So he would just crush on her in silence, he would sometimes catch himself staring for a little too long and he thought he was caught, but luckily no one had ever mentioned it to him.
They were never close growing up, she didn't spend much time with Charlie, so whenever he was over their house he would only catch glimpses of her, but as she got older, she and Charlie grew closer and he would see more and more of her. When she was ten she would play fight with them and run around the woods with them, when she turned twelve she started playing video games and would help them play pranks on the neighbours. Soon enough they became much closer and now she treated him like her brother, much to his own dismay.
He didn't remember when he met her, but their mothers were friends when she was born so he presumed that he had known her since she was born, which was kind of weird when he thought about it. She used to call his mom 'Aunt Lisa' as a kid, they were like family, but they really weren't.
He remembered the day she started high school, she was so excited and as he and Charlie were quite popular for sophomore's they showed her the ropes and soon enough she was just as high as they were on the social ladder. Though she didn't hang with their friends, she had her own group that weren't popular for being on sports teams or for being Jerks and pushing kids around, but for being friendly to everyone.
He was a senior now and for the past three years he had liked her in secret, never telling a soul about it. He vowed he never would, he would stick it out until he graduated; he would suffer through watching her with other boys and silently watching her.