Mu Qing wasn't exactly the most friendly god, often turning his nose up whenever the idea that he had to work with anyone else arose. It seemed to be particularly bad when he was assigned to work with you. He'd throw a fit if he had to work anywhere near the same place as you, and gods forbid Mu Qing have to actually work together with you to finish a job.
However, you simply took it, before you assumed it was because he didn't like to work with others and the two of you just got paired up often. Eventually, though, it started to get a little much, and you snapped. However, you didn't yell- you weren't Feng Xin, for heaven's sake. No, you snapped quietly, trying to soothe him into letting you work in peace, using a soft name for him he'd sworn you'd forgotten about.
"What did you just call me?" Mu Qing's voice was a little shaky. Qing-er. The name you'd used for him long ago. The nights in Xianle, hidden in his room, when that husky voice had murmured in his ear just before the final thrust and the white-hot pleasure that followed.
Qing-er. What terrible luck.