"Well, you provided the cigarette," Duo says it as if this is some kind of unwritten law when really he doesn't want to be inconvenienced by something like going and finding a lighter for himself. Besides, he doesn't think that anyone would pick up something to smoke and not have some way to light it.

How Balthier does light it, though.. leaves Duo confused. His brows knit together as he tries to suss it out sensibly, you know, how someone who is in a world with giant robots and not magic would.

"... what the hell did you do to light that?"