http://en.wikipedia.org/wiki/King_%26_King

“On the tallest mountain above town,” a young prince still has not married, as is the custom in his kingdom. His mother, a grouchy Queen insists he must find a princess to marry. The prince tells his mom “Very well, Mother…. I must say, though, I’ve never cared much for princesses.” His mother marches princess after princess through the castle, but they fail to interest the prince. After a while along comes princess Madaleine escorted by her brother Prince Lee, who causes the prince to exclaim, “What a wonderful prince!” The prince immediately falls in love with the other prince, and they begin marriage preparations at once. The story ends with a kiss between the two kings.