In a certain sense, Xiao Yunxi is, after all, of royal descent, whereas Chen Mo is a subject.
Out of etiquette, Chen Mo's behavior is an unforgivable crime of disrespect to his superior.
Under Chen Mo's strong insistence, Xiao Yunxi had no choice but to angrily shout at him, "Audacious Chen Mo, how dare you act so presumptuously in front of me? Aren't you afraid I'll report to the Emperor and have him execute your entire clan?"
"I'm not afraid." Chen Mo kissed Xiao Yunxi's fragrant shoulder and said, "As they say, 'A ghost dies under a peony even with no regrets.' With such a beautiful lady as you, even death would be worth it for me."
"Presumptuous, how dare you, Chen Mo, commit such disrespect to your superior."
"Tonight, I have decided to commit it anyway."
"Audacious... no... don't wake Zheng'Er."
...
"Wuh wuh wuh..."
