Y/n was wandering on Wisteria Walk, biting her bottom lip and looking around at the prissy perfect mowed lawns. Then she took a right and saw Number 6, Privet Drive. And in case you wondered, it was not a prissily perfect mowed lawn. It looked like utter chaos, but to Y/n, it looked like home. She lived there, of course. 
Y/n took to staring at the gate again. She didn't stop. She just kept staring with immense concentration. Y/n was actually trying to open the gate with her mind, but no such luck.

"Er- excuse me?" asked a wispy voice from behind her. Y/n didn't recognize the voice, but she had a very strong suspicion of who it was.

Y/n whipped around. "Who are you?"

The boy with the wispy voice looked jumpy. "Oh- uh- I'm sorry- I didn't mean to disturb you- my name is Harry Potter-"

Y/n's eyes widened slightly, but she didn't press the matter.

"Sorry to bother you- but you looked like you needed something or was lost or something-" The boy kept stumbling over his words.

Y/n laughed, startling the boy. "I live here, Mr. Potter, all I need is my ham sandwich for lunch today!"

Harry managed a weak smile. "I- er- what's your name?"

Y/n smiled. "My name is Y/n Prewett. Nice to meet you."

And that's how it all started.