Lindsay Lohan is still eating...she's just stressed out.

"I haven't changed my eating habits," she said at the Mercedes-Benz Oscar party at the Montage Beverly Hills, where she was excited for Sean Penn's big win. So has she upped her gym routine?

"I go to yoga once a week, but I don't go more than that because I'm too lazy," Linds said, adding that her recent weight loss is probably due to stress.

So what's she stressing about?

"A lot of meetings for movies and stuff," she explained. While we haven't heard of any new movie castings for LiLo, she has a few other non-cinematic projects in the works, including a self-tanning line for Sephora and a diamond jewelry line.

LL stayed mum on what makes her relationship with Sam Ronson work, but clearly she's supportive of her girlfriend. She arrived with Sam, who was deejaying the party, and hung by her side most of the night, refusing a glass of champagne offered by an unknowing waiter. Maybe she should have snagged some hors d'oeuvres.

The Mercedes-Benz party, where Bridget Moynahan and Padma Lakshmi were also hanging, wasn't the only affair on Lindsay's list. After Sam finished spinning, the couple was headed to Madonna's exclusive afterparty for more fun.

—Additional reporting by Whitney English