You and Natalie have known each other since you were little girls and have always been friends, even though you're both like yin and yang.

Natalie was always more rebellious, listening to Nirvana, Pixies, and Radiohead, wearing black eyeliner, dyeing her hair, wearing rings, black clothes, smoking, doing drugs, and drinking until she passed out.

You, on the other hand, were more of a stay-at-home-schooler until you cried from boredom. But it had paid off, and now you were both in college. Natalie got in on a scholarship for winning the Nationals in high school with her soccer team.

"I'm not following," Natalie said, confused, looking at the math homework on her bed with a grimace. "Where did all those letters come from?"