Harry had always watched from afar. He was in love after all. The man's long wavy black hair, those dark obsidian eyes, that pale alabaster skin. He was so beautiful. After all he had saved his life the night that Voldemort had tried to kill him. He had been waiting in the shrieking shack, under his invisibility cloak. He had followed the link with Voldemort to the room when Nagini had attacked him.
Using his invisibility cloak he followed the man one last time on his rounds through the corridors. He had used a charm on his shoes to make his footstep untraceable but he knew that the man felt his presence. He would stop every few paces and listen to the silence as if he had heard he was being followed. Harry knew he could tell.
Severus knew that he was being followed again. He could feel the shift in the air, smell the scent of the other male. It was the scent of sage and oranges. He knew that the boy thought himself to lust after him, he was very obvious after all. That and no one could get past the nose of a werewolf. There was a reason he had always hated Lupin and his friends. Why should Lupin have friends to help him through those horrible nights when Severus had to do it alone? He stopped suddenly and turned just as the boy was turning a corner, causing Potter to run into him and knocking him down. As potter fell his cloak came off, and he stared up at Severus in horror. Severus leaned down and gently set him upon his feet and quietly walked away leaving a very shocked and confused Harry in his wake.