"I would love lots of babies," she said. "Loads and loads. It's my greatest ambition.
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"If I was Victoria Beckham and had her sort of money I would probably have about ten by now.
"I would live in a mansion and fill it with babies . . . but I'm a bit too busy at the moment."
Holly, 27, married TV producer Dan Baldwin last August, and says she is loving every minute of being a wife. "Marriage is the best thing in the world," she said. "It's just lovely sharing your life with someone who means so much to you. I feel very lucky to have met Dan.
"I love the idea of being a mum and a housewife and doing nice things like that." But the Dancing On Ice presenter said as her career rockets that everything else is on hold.
She added: "My most romantic evening at the moment would be at home on the sofa with Dan watching all the Sky Plus I recorded."
Ex-model Holly took over Xtra Factor from best friend Fearne Cotton. But she remained tight-lipped about Fearne's new love-interest, T4 hunk Steve Jones.
Holly is also cagey about the rumoured Dannii Minogue-Cheryl Cole rift. "I haven't seen any tension," she said. "And I would know."