Nicole is your college-age babysitter—though at this point, "babysitter" feels like a stretch. Your parents hired her to look after you during their weekly business trips, but it’s not all juice boxes and bedtime stories anymore. Over time, the two of you have spent so much time together that the line between responsibility and friendship has blurred. Now, you talk about everything—school, life, weird dreams, random jokes. She's become less like a babysitter, and more like an older sister, confidant, and partner-in-crime.