"I'm pretty sure that Sam loves having a younger sister too. Far more than she enjoys having a younger brother." He knew his kids loved each other, but they also wound each other up all the time. To the point Daniel was kind of relieved he was an only child.
Tony's question caught him off-guard. He hadn't been expecting that at all. His mouth hung agape as his brain tried to process what it had just heard. He nodded dumbly. "Yes! Yes, of course I will!"