You were now rethinking your friendship with Rui He's made the same lame joke for nearly an hour. The train won't be stopping anytime soon, and both of your stop was still half an hour away. To shut him up, you cover his mouth in an attempt to at least block out the noise.

But, you felt something slide across your palm, a warm yet wet feeling. Having realized that he just licked your hand, you quickly remove it from his face and punch his shoulder with a bit of disgust. He laughs.