La Lohan’s list of past BFF’s is a virtual who’s who of young Hollywood gossip.  There’s been Paris Hilton, Samantha Ronson & 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, & 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.”

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