"You've been to the zoo, right?" Tsuna assumed so, but he'd been kind of scared of it when he was little, so he never really went much, and if he did he was crying the whole time in his Dad's shoulder while Mom took Sora around. "I've only been twice."
Sora was going to make a comment about it, but he remembered that this was THEIR date, and Riku and Sora weren't there to be involved, they were there to make sure nothing bad happened. So he kept quiet.