They'd been living together for two years now but he still had difficultly placing a name on their relationship. It was always complicated, born of a reckless impulse to do something dangerous and a more simple indulgence of curiosity. He couldn't help it, from the first glimpse across that cold lab, to that wink as he left the room, Sherlock fascinated the Hell out of him. He found himself focusing on the tiniest of things, the tone of his voice, the way the vowels and consonants clashed together, the way that the sullen silences and manic experiments blended into the fabric of the life that they lead.

People called them friends or flatmates, occasionally people would speculate if they were really lovers. The truth was that they were all as bewildered to the true extent of their relationship as he was.

Certainly, there was an elemant of truth in all of the assumptions. Technically, they were all of those things. In the quiet, 3AM born musings however, these words always felt inadequete, meaningless, compared to the feeling he got when he stared down at Sherlock, breathing softly and blissfully ignorant to the internal struggle of emotions, labels and expectations that he felt every night, woken up by some nagging doubt that clawed away at the fabric of his mind as he shared a bed with the man whose existance in his life was beyond explanation.