Jason Merritt / WireImage 1 / 19
Jason Merritt / WireImage 1 / 19

While nursing Harlow, now 3, in 2008, Nicole Richie said, "I really don't like [having big boobs]." Times sure have changed!

An insider tells the new issue of Us Weekly that the "Fashion Star" mentor got implants this summer.

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"In the past, she said she wanted a lift, though we never thought she was serious," another source says of Richie.

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Still, "she's been open about it to friends," notes the first insider.

Richie flaunted her fuller physique while vacationing with pals in Mexico on Sept. 24. It's a stark contrast to the flat-chested bikini body she showed off just one year earlier.

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The second source adds that the House of Harlow 1960 designer wanted to improve her bustline for hubby Joel Madden, 32. "The pregnancies took a toll. She said breast-feeding killed what boobs she did have!"


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