I Imagine.

Sherlock has never believed in love, nor has he ever needed it. That has all changed now. He loves John Watson. He wants John Watson. It burns like fire, like heroin running through his veins.

Not a desire. An addiction. Maybe it's just John. Maybe it's that intoxicating touch and empathetic demeanour. Maybe it's the way he cares so much. What makes Sherlock so addicted to John Watson?

The man who's never wanted anyone now needs someone. Is it something he'll be able to handle?