Cat Deeley wanted another child because she thinks it is important that children have siblings.

Cat Deeley

Cat Deeley

The 'So You Think You Can Dance' host was thrilled to announce over the weekend that she is expecting her second child with husband Patrick Kielty, a sibling for their first child, two-year-old son Milo, and says her desire to have another child came from her own upbringing.

She said: "I'm very, very close to my brother and so I'm really happy that Milo will have a sibling too. So, we're just delighted and excited and all those things."

And the 41-year-old television personality hasn't given the news to her son Milo yet and she is not sure how he will take it as he is used to being "the centre of the universe".

She added: "He's only two. He's a chatter, and he does understand things, but no, we haven't explained it to him yet. I don't know if he's going to like it at first. He might not. He's used to being the centre of the universe, so we'll see. But I think he'll really enjoy it later on."

Cat and Patrick have no plans to find out about the baby's gender before it is born and only want to make sure it is healthy and happy.

She shared to Entertainment Tonight: "I don't think we will because it doesn't matter to us really. We're just excited either way. As long as the baby is healthy and all you ever want, I think all any mom or dad wants for their child is for them to be happy. So as long as they're healthy, we don't mind."

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