“So, do you and your sister frequently dress alike?” Nathan asks. “Not on purpose,” I say through a laugh. “Believe it or not, it was completely accidental tonight. Actually, how did you know who was who?” Nathan’s expression shifts, like he can’t even believe I had to ask the question. “I just knew,” he says. “It seemed pretty obvious to me.” A tiny confetti cannon explodes in my chest. And he didn’t even have to look at my shoes.