Some gonana <3

It is such a small detail. Look at his face. He knows his end is close.

People said smoking is a way of self-harm for him — I think it is also a perverted way of comfort, but not to calm down. It is a way for him to ground himself after an emotional peak he suppresses. Liam needs to feel something in his body in the moments when he knows the end is near, to remind him of his own body and the fact that he is still alive — he still has a goal to accomplish. And thus, Liam reminds himself he is a sinner. As long as he is alive, he is a sinner to himself.

Smoking will not kill him anyway. Even if it is bad for his lungs.

I would like to see Sherlock's reaction to Liam's attitude toward smoking. I do not think Sherlock would ever give him a pack to try, thinking either Liam does not smoke, or would not like to. But then, at some point, Liam tells Sherlock he did smoke and why (Liam, of course, would not tell the reasons directly. He would create a metaphor, a legend, a riddle that Sherlock has to solve. Sherlock, of course, always does).

Oh, and Sherlock would feel his heart ache. I can see him trying to smoke less in front of Liam, and both of them are aware of his trick, but Sherlock would not be ready for Liam to say (and I think it would take time for Liam to understand) that when Sherlock smokes, Liam feels alright. I would like for Liam to slowly change his association with smoking — from a way to remind himself of his sins, his role, his body, to a part of Sherlock's aura. To the point when Liam senses smoke in the air, he smiles to himself. He still does not like it, but this time the warmth in his lungs is not caused by the method of self-punishment — it is caused by affection.

(Sherlock's answer to that fact would be quite hilarious — probably, it would be the first time he is embarrassed by his habits. He is happy Liam finds comfort in him, but does Liam associate anything else with him, except for an unhealthy habit? It would be funny if not, right? Violin, maybe? 'Well, I assume you saw our neighbour across the street when he is in a rush at least once. When I see him running in the mornings with that state of his hair-', 'Oh, you tease').