AceShowbiz -

Rumor has it, expectant celebrity parents Nicole Richie and Joel Madden have been considering to walk down the aisle before the birth of their second child. In Touch Weekly, which is the first to report that matter, claims the pair already started planning to host a wedding and Nicole even is said to have picked up her wedding gown.

"They are old-fashioned in some ways. Now their second baby is coming, they both want to make it legal," a close friend of Nicole and Joel tells the publication. And while there hasn't been record on the wedding date and venue, Nicole reportedly has found the perfect dress for her big day, which is a vintage Yves Saint Laurent gown she's been saving for months. "It's been hanging in the back of her closet. She always planned to wear it on a very special occasion," the friend reveals further.

Asked about report on Nicole and Joel's wedding plan, Nicole's singer father Lionel Richie insists he knows nothing about that, claiming he is never kept up to date with Nicole and Joel's romance. "I'm the first one to pay for it and the last one to know!" Lionel jokingly adds.

Nicole Richie and Joel Madden have been together since December 2006. The celebrity socialite gave birth to their first child, daughter Harlow Winter Kate Madden, in January 2008. A second child, in the meantime, is on the way for the couple, the announcement of which has been made by Joel through a short message posted on the official website of his band Good Charlotte back on February 21.