I thought my late mom's wedding dress was safe in my closet. Then I saw my stepsister walking down the aisle in it. My mom passed away when I was 16, leaving me her wedding dress. I'd always planned to wear it at my own wedding. It was my most treasured reminder of her. Two years later, my dad remarried. I moved away for college, but most of my things stayed in my old room. One time, when I came home to visit, my stepmother told me her daughter, Amelia, was getting married. She asked if Amelia c