Ten is the Beginning of the End (слэш)

“Die?” Mycroft’s voice was slightly deeper than last July. “Please, Sherlock, do not insult my intelligence. You could barely stand the thought of your body transforming if you are not there to catalogue and analyse the different stages of decomposition. You’re extremely jealous of your body, so much so that you don’t even allow doctors to examine it.” John opened his mouth to retort that no, Sherlock was not like that – seriously not at all. He had let him extract all his lower milk teeth and… And Mycroft continued: “You would live forever just to witness your death.”