Prince William, duchess Kate and little prince George on their big trip, but did prince William trip up revealing that that family might perhaps be growing. ABC's Cecilia Vega in new Zealand on their... See More
Prince William, duchess Kate and little prince George on their big trip, but did prince William trip up revealing that that family might perhaps be growing. ABC's Cecilia Vega in new Zealand on their journey and what happens might be coming. Reporter: First solo stop on this royal tour down under, a visit to a children's hospice, a chance for a duchess to meet a princess. What are you doing here? Having a tea party? Can I sit down and join you? Reporter: Her work with children's hospices a cause close to Kate's heart and to the women nicknamed the queen of heart, the images of Kate and princess Diana, nearly identical. That has been a recurring theme here. Kate and Diana both in red coats upon landing. Baby George in his shorts, just like his own father's royal crawlabout more than three deck ads earlier. It falls to the younger Royals to maintain the relationship with the monarchy. Reporter: The perfectly choreographed trip from the royal play date to the royal boat races where Kate crushed the future king not once but twice, but the biggest star of this royal show coming in the smallest package and still managing to outshine even his superstar parents. And could there be another baby on the way? Prince William prompting speculation here when he told the woman who gave him a shawl for baby George that she may need to make another one soon. David, could there be a little brother or sister? We'll have to wait to find out. Cecilia Vega in New Zealand. Traveling with the Royals. Thank you.
This transcript has been automatically generated and may not be 100% accurate.