Nicole Richie might be preggers with Joel Madden‘s second baby, but the pair is in no hurry to tie the knot. “We are going to do it because we want to, not because that’s what you do,” she said on Larry King Live last week. “We’re going to do it when the time’s right.”

“We already feel kind of married, you know?” added boyfriend Joel. “We feel like this is a real family and marriage, one day it will come.” [OMG! Yahoo!]

Well, I guess why buy the cow when you get the calves for free? It seems like lots of celebrities are putting off marriage these days. Here are our favorite notoriously unhitched celebrity couples.