Whipped!

Nicole Richie‘s got Joel Madden on a tight leash.

The mom-to-be has given the Good Charlotte singer a strict list of rules to follow when out in public. On that list? Thou shalt not be photographed with hoochies and hos.

At a party in NYC earlier this week, Madden refused to take a picture with a hot young girl.

“He said he couldn’t, as Nicole gave him strict orders not to take pictures with other celebrities or girls for rumor purposes,” says one spywitness.

Shiz? Does that mean Joel won’t take a picture with Perez tonight? He’s such a big girl!

If you’re in the Washington, D.C. are, come to this super fun party that Perezzers is hosting this evening.

Both Benji and Joel are expected. They are performing. And maybe Nicole will show up.

Plus, it’s free!

[Image via Celebrity Babylon.]