Bai Chen was sure that Zhu Ge was teasing him. Before he even turned to look at the taller man, he already knew that the taller man was taunting him from the tone of his voice alone. It was obvious that the man was trying to hold back his laughter, and when Bai Chen finally looked at him again, it was evident that Zhu Ge was trying his best to control his mouth so he wouldn't burst out laughing.
The Werewolf Prince looked annoyed by that, and he angrily rebuked the man, "Just answer my question! Are your parents home or not?"
Zhu Ge was actually not wrong with his question earlier. Ever since Bai Chen remembered Zhu Ge's parents, he suddenly became nervous when he thought about what he should do when he met the man's parents.
Maybe Zhu Ge had teased him earlier, but Bai Chen knew that Zhu Ge was right about 'meeting the in-laws,' and that was why he suddenly felt anxious.