Nicole Richie may be pregnant with her second child, reports Star magazine.

Richie, who has just given birth to five-month-old daughter Harlow with partner Joel Madden, has recently revealed that she wants a companion for her baby.

“Nicole is dying to have a sibling for Harlow who is close in age. She doesn’t want them to be more than two years apart, so that they can be best friends forever,” a source tells the magazine.

Richie sparked that she is pregnant again after being spotted wearing a flowing lilac “maternity-style” top.

“The top was not something Nicole usually wears. She ordinarily goes for tight T-shirts and vest tops. The other unusual thing was that she was wearing comfy sheepskin boots and not her usual heels – the boots definitely looked like something a pregnant woman would wear,” said an on-looker.

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