Neither of them indulged regularly. Dependence could be dangerous. But stakeouts could stretch for hours, and sometimes it was the only thing that could keep both of them awake.
And Napoleon liked any excuse to see Illya sucking on things.
His partner let the smoke leave his mouth in lazy curls. "Last one in the pack," he said apologetically, offering the half-smoked cigarette to Napoleon. The tickling ache in the back of his throat was still raw, would keep him alert as much as the nicotine.
Napoleon took it from him anyway, and closed his lips where Illya's had been.