Heir-Brained: Brandon Davis Dissed By Stavros Niarchos

Brandon Davis is so unpopular, even his friends don't want to be associated with him.

The obnoxious, toxic grandson of the late oil tycoon Marvin Davis showed up to the Details magazine party March 29 at producer Mary Parent's house in Hollywood and became enraged when he was denied access.

According to a New York Post spy, "he started demanding that staffers get Stavros Niarchos.

The Greek shipping heir, who is newly single, evidently told Davis about the party and was already inside.

But when staffers found Stavros Niarchos, he pleaded with them to tell Brandon Davis, a.k.a. Greasy Bear, that he wasn't there, saying, "I didn't invite him here, and I don't really want to be around him."

Nice. Niarchos, who used to date Davis' best friend, Paris Hilton, then joined the other revelers. Davis eventually made such a fuss that he was allowed in - and Niarchos beelined to a Details editor to apologize.

"You know I would never bring him here," said the Greek God of Poontang, who once tapped the voluptuous booty of Lindsay Lohan as well as Mary-Kate Olsen.

We would hope not. Davis is guaranteed to make a scene wherever he goes. This is a guy who ridiculed Paula Abdul's Middle Eastern heritage when he himself is Middle Eastern. And greasy. Very greasy.