Holly and Hef Party Hop

The Playboy magnate and his No. 1 ladylove hit the town without the others Girls in tow...what gives?

It was late night for Hugh Hefner and Holly Madison Thursday.

The two hit the town without the usual Girls Next Door entourage in tow. But even being à deux didn't help their luck getting into the grand opening of the Affliction boutique on Melrose.

The party was over capacity and being shut down by the fire marshal when the duo arrived. Undeterred, they headed to the nearby Madden NFL 09 party at STK and Coco de Ville where Kevin Federline was holding court.

So where were Bridget and Kendra?

Holly told E! News that Bridget was busy working and Kendra was back at the mansion.

Never thought we'd see wild child Kendra pass up a party invite...much less to a sports-themed shindig! (Set your conspiracy-theory meters to high.)

But it's not like Holly and Hef even had a chance to get lonely without the other girls around—their table was flanked by a bevy of blond babes until the two left at 11 p.m.