Prince William has made no secret of his plans to start a family with wife Kate Middleton. But during the couple’s current trip to Singapore, William responded to a question on the topic by saying he’d like to have two children.

William was asked the question while touring the city’s Gardens by the Bay attraction, according to 17-year-old student Corine Ackermann. “Someone asked him how many children he would like to have, and he said he was thinking about having two,” Ackermann said.

RELATED: Is Prince William Ready For Fatherhood?

The royal couple was also asked by another student to name their favorite superpower if they could be superheroes. The prince responded: “That’s a hard question — I’m not sure. I’ll have to think about it. I think invisibility.” Kate said she would also choose to be invisible, “otherwise (William) would be able to sneak up on me.”

Singapore is the first stop for the Duke and Duchess of Cambridge on the couple’s nine-day tour of the Far East and South Pacific. On Tuesday, they visited Singapore’s lush Botanical Gardens, where they viewed orchids named for them, as well as for the queen and William’s late mother, Princess Diana.

RELATED: Prince William & Kate Kick Off Asian Tour

Other stories making headlines today: Emma Watson sits down with ET Canada to talk about her adrenaline-fuelled character in The Perks of Being a Wallflower, George Clooney is still dating Stacy Keibler and make sure you tune into ET Canada TONIGHT for our exclusive interview with Rachel McAdams!

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