There are rumors again that Nicole Richie and boyfriend Joel Madden are engaged and their lawyers said to be hashing out the details of their prenup. According to OK! Magazine, they’re supposedly planning to wed within months:

They began dating only last November, but Nicole Richie and Joel Madden are already negotiating their prenuptial agreement, OK! has learned exclusively.

Nicole, 25, and Joel, 28, are – despite their public denials – officially engaged, and their wedding is likely to happen within months.

Legal reps for Nicole and Joel – whose legal name is Joel Combs (Madden is his mother’s maiden name) – began working on the prenup in mid-April. When completed, it will cover everything from what percentage each will own of the “marital residence” they intend to buy, to the agreement that neither will talk about each other without the other’s consent, to their decision that neither will be entitled to spousal support in the event of a divorce.

[From OK! Magazine, print edition, May 14, 2007 via Sammie’s Effluvia]

Nicole and Joel were seen out in Sydney, Australia at the end of April when these pictures were taken. Nicole didn’t have a ring on her left hand in these photos, but was seen with what looked like an engagement ring back in March, sparking rumors. She has repeatedly denied that she’s engaged. If OK! uncovered some legal documents, it could be true, though.

These two should wait a while. It’s unknown what will happen to Nicole after her second DUI conviction last November, and she will face a mandatory five days in jail if convicted of that offense. She has a pretrial hearing set for June 8th, and it seems to have been delayed as earlier reports had it in April.

Images from Splash News. Used with permission.