[ He laughs, obviously just meaning it in a good-natured way even when he says-- ]

Deal with it, the highway's ours now! Just ours!

[ But it's hard to miss the way she clings against his back tighter, like she's leaning against it more, and with the way she's been lately it immediately sets off alarm bells in Josuke's mind. Sure, he doesn't want to be overbearing, but he at least has to make sure.. when he speaks up again, his voice is a lot softer. ] .. Hey, don't fall asleep though. We still have the whole day to go.