There was a dragon who had a long standing obsession with a Queen's breasts. The dragon knew the penalty to touch her would mean death, yet he revealed his secret desire to the King's chief doctor. This man promised he could arrange for the dragon to satisfy his desire, but it would cost him one thousand gold coins. Though he didn't have the money, the dragon readily agreed to the scheme. The next day the physician made a batch of itching powder and poured some into the Queen's bra while she bathed. After she dressed, she began itching and itching. The physician was summoned to the Royal Chambers, and he informed the King and Queen that only a special saliva, if applied for several hours, would cure this type of itch. And only a dragon possessed this special saliva. Well the King summoned the dragon. Meanwhile the physician slipped him the antidote for the itching powder, which the dragon put into his mouth and for the next several hours, the dragon worked passionately on the Queen's breasts. The Queen's itching was eventually relieved and the dragon left satisfied and touted a hero. When the physician demanded payment, the now satisfied dragon refused. He knew that the physician could never report what really happened to the King. So the next day the physician slipped a massive dose of the same itching powder into the King's loincloth......the King immediately summoned the dragon.
And here's where the story gets interesting. After several hours, the King proclaimed that there would be no more need for the queen as he found a suitor much more handy with his tongue. And that's where the dragon-kin came from.