Courtenay Semel: Lindsay Lohan's New BFF

It's widely known - and mocked - that Lindsay Lohan is a serial dater.

But the loose singer/actress has also been spotted with more close friends than the Spears' family has children.

There's been Paris Hilton, Samantha Ronson and now the latest: Courtenay Semel. Lohan recently attended a holiday party at the Los Angeles home Jeanette Longoria with Semel, the daughter of former Yahoo! CEO Terry Semel.

A New York Post spy at the soiree also overheard the duo refer to themselves as roommates, and one Hollywood insider claimed they've been living together in a house in LA for about a month.

"Lindsay came with Courtenay to the party around midnight and they stayed for an hour," said the source. "The girls held hands and were with each other the whole time."

Does this mean Lindsay is playing for both teams, following the bisexual lead of Tila Tequila?

Not so much, claims her rep: "The two are good friends, nothing more."

Courtenay Semel is making like Kim Kardashian: Come from a rich family, befriend a celebrity, get famous. Expect a Courtenay Semel sex tape any day now.

Semel is a D-list celebrity after her appearance on the E! reality show Filthy Rich: Cattle Drive. She starred alongside other wealthy, talentless friends such as Fabian Basabe, Brittny Gastineau and Katy Benetar in a series produced by Crazy Joe Simpson.

You can't make this stuff up.