Vanessa Lachey and husband Nick Lachey already have a son, Camden John, who is about to turn one, but Vanessa is already thinking about giving him a sibling!

"I look forward to expanding," Lachey said Thursday while promoting her new show "Dads" at Fox's Television Critics Association summer press tour, according to People.com.

"We talked about three.  I've always loved having a big family and truth be told, when I'm old and gray I'll need a couple of them to take care of me," she added.

In the meantime, she is planning the birthday party for her son in September, and planning Nick Lachey's 40th bithday.

"The same year I'm planning my son's first birthday, I'm planning my husbands 40th birthday!" she said.  "I've been [planning] both for the last month and I joked to my friend that I hope I don't send Maker's Mark [bourbon] to Camden's birthday and streamers to Nick's birthday!" she said with a laugh.

"He's standing and two days ago he did his first shuffle holding onto something.  I'm excited.  I already dress him like my husband so I can't wait to see him walking and looking like my husband!" she added.

While she's been waiting for him to start walking, she has also been using Instagram to post adorable pictures of her son.