"Says you," Sulu replied, because ice cream flavors were important, damn it.

He couldn't help but give Ianto a look at his sudden revelation, nodding along slowly with what he was saying. "Well, uh, yeah. Of course there are people not from Earth - I thought we covered that with the alien part. And there are people on the moon, and ambassadors on other Federation planets, so... yeah." He shrugged, a little surprised Ianto was only just realizing this.