Do you need an explanation for why there are dragons when the real world doesn’t have dragons? Because it’s a story. Do you need an explanation for why those dragons can fly when logically a creature of that size shouldn’t be able to do so? Because it’s a story. Do you need an explanation for why a human wiggling their fingers and saying certain words causes lightning to shoot out of them and fry that dragon to a crisp? Because it’s a story. Do you need a reason for why that finger-wiggling human is a gay woman and not a straight man? No, you don’t, because it’s the least absurd thing in this paragraph and you accept all of the others without question.

Rich Burlew, author of “The Order of the Stick”
(http://goo.gl/uENmqD)