During his day visit to South London he chatted about his excitement over becoming a dad for the second time.
Claudia French, 40, met Prince William and shared with Hello!what he said about Prince George’s sibling.
“We were talking about him becoming a father again,” Claudia said.
“He said “The first time is a learning experience, the second time is a game-changer.”
Claudia brought her daughter, Lily, along to the day, revealing that the Duke quizzed her about her little one.
“William was asking me if Lily was the same age as Prince George,” she said.
“And I said she was and he asked me if she was walking yet.”
Prince William was joined by his very pregnant wife, Duchess Catherine, who was sporting a stunning hot pink coat. The 33-year-old is believed to be having a girl.
Prince William told well-wishers “not long to go” until Prince George is a big brother!