Two priests decided to go to Hawaii on vacation. They were determined to make this a real vacation by not wearing any thing that would identify them as clergy. As soon as the plane landed, they headed for a store and bought some really outrageous shorts, shirts, sandals and sunglasses. The next morning, they went to the beach dressed in their "tourist" garb. They were sitting on beach chairs, enjoying a cocktail, the sunshine and the scenery when a drop-dead gorgeous, topless blonde in a thong bikini came walking straight toward them. They couldn't help but stare. As the blonde passed them, she smiled and said, "Good morning, Father. Good morning, Father." She nodded to each, and addressed each of them individually, then she passed on by. They were both stunned. The next day, they went back to the store and bought even more outrageous outfits. Once again, in their new attire, they settled on the beach in their chairs to enjoy the sunshine. After awhile, the same topless blonde came walking toward them. Again, she nodded at each of them, and said, "Good morning, Father. Good morning, Father." She started to walk away. One of the priests couldn't stand it any longer and said, "Just a minute, young lady." "Yes, Father?" "How in the world did you know we're priests, dressed as we are?" "Father, it's me, Sister Katherine," she replied.