There is the notion of not wishing to adopt and then have his own child at some nebulous time in the future; Jiang Cheng had grown up as the less favourite of his siblings, as the one where the adopted was preferred, and he would not wish that on his child. He had been busy enough the last handful of years with a nephew and no one had ever matched his desires, a-Ling's favour included. It was easy enough to dismiss it when he was younger, but now...

Everyone seems to have children. It's starting to become irritating.

"He seems to think so," Jiang Cheng replies after a moment of pause, enough time to register the words and for him to digest it, to think on what he would like to say in return. "I will find the time to give him more. You should as well, especially now there's two of them."

They'll be twice as demanding, twice as wanting, twice as spoiled. It's completely his fault, of course, but the point stands.