A king travels through the desert, when he suddenly discovers a man captured under a big rock, he throws a rope around the rock and ties it to his horse and pulls the rock off the man. The man, gratefull as he is, tells the king that he's really a great sorcerer, and gives the king three wishes.
The king looks at the Sorcerer and says "OK, then I wish to be immortal", the sorcerer replies "Puff, it's done." The king takes a knife and stabs himself and nothing happens, then he says "OK, then I want my horse to be immortal." The sorcerer replies "Puff, it's done". The king, happy as can be, stabs his horse and nothing happens, then he says "OK, then I want my horses genitals." The sorcerer replies "Puff, it's done".
The king, still happy, jumps on his horse and rides back to his castle, in the doorway he meets his friend Peter, jumps off the horse and tells Peter that he's now immortal. Peter laughs, but the king gives Peter his knife and says "Here stab me with the knife." Peter stabs the king as ordered and nothing happens, then the king shows Peter that his horse also is immortal, and replies "That's not even the best part look at this" and the king drops his pants. Peter looks at the naked king and screams out loud "Damn that's the biggest pussy I've ever seen..."