she exclaimed , her voice rising in excitement as she told him of these things and expecting shock to spread over his face . 'none of your business , ' i managed to reply . `` could n't you have found someone older than eighteen ? she threads her fingers through mine and we turn toward the back door , together . a sharp left hand turn taken too quickly snaps me from thought . he sees the look in my eye and stops laughing immediately . `` twenty-four hours is a big step , '' she said . 