Gokudera lets out a sudden bark of a laugh at the idea of Yamamoto cutting a hole in the back of his pants to make room for a tail. Why it's so funny, because it's a minor inconvenience and the mental image of the other focused and a little bothered cutting a hole just the right size in his pants of all things. Gokudera just imagines his dad doing it for him and he's giggling even harder, holding his sides. He can practically hear the mock interaction, a softly admonishing tone and a sigh and 'again, Takeshi?' like the kid's just splitting the back of his pants! How stupid! Gokudera's laugh is quick, almost a snicker as he tries to stifle and contain it.

Some things are worse than cigarettes. Gokudera will eventually find a way to light his dynamite without the smokes, maybe by setting up different bombs, or relying more readily on his box weapons. Trying to fight an addiction will be hard, especially when he won't admit it, but the nicotine definitely is a comfort to him.

"I-I bet," Gokudera's catching his breath, the grin on his face slowly falling, but the mirth lingers in his eyes.