John Watson used to be a Death Eater. After the fall of Voldemort he ran to muggle London. For four years he pretended to be an army doctor who returned from Afghanistan. His life changed drastically when Sherlock decided to pick a case that was connected with magical world which John tried so hard to forget.

Ignores HBP. To obtain what he desires the most Draco makes a dare: he will make The Boy Who Lived his and after that he will break him in the most painful way possible.