Bloody Mary (Urban Legend) Halloween finally arrived and it was Mary's sixteenth birthday. Mary's parent's finally decided she was old enough to have a sleep over at their house. But she was only allowed to have two of her best friends spend the night after the party. Mary called Kathy and Kim to see if they would stay and have a sleep over at her house. Kathy and Kim both agreed and said that they would have a great time together being that they were all best of friends. Mary hung up the phone and said "This is the best day of my life. I'm going to turn sixteen today and I finally get to date boys."