He has to stifle the laughter making its way out him. This is a far better feeling than being awkward and realizing things. (Must be why Yvaine is like this a lot of the time.)

"What is it that you're so afraid of, anyway? You live in the sky, don't you?"

As if on cue, another clap of thunder sounds through the sky. From the other side of the ship, he can hear a distant cheer and the abrupt halt of music.

...if this keeps up, there might be a possible lightning-hunt tonight.