He rubs his belly demonstrably. "My Knight's little brother is getting bigger. Soon he'll be a Real People and not just a baby. But he won't be a real real person. Except maybe someday, except maybe not, because we can't tell if he will or won'ts.
But he would be a mortal persons, and when he's not a baby no more and can talk, then I wouldn't be able to visit any longer."
He exhales, and adds in, "And now Miz Tiffany has babies coming too. And then THEY would grow up. And maybe THEY would be mortals too, and then I wouldn't be able to go visit GERD either."