C113 You're Playing with Fire

No matter what, I didn't expect Yang Xinxin to ask such a question. Perhaps because there was no one else around, Yang Xinxin became a little more bold and even asked such a private question.

How many days has it been since Yang Xinyi and I did it?

This kind of thing is not something that a sister-in-law like Yang Xinxin can ask.

Ever since the last time