Sarah Michelle Gellar

Buffy the Vampire Slayer has something to say to women everywhere: You have lost your way.

"Think about Rosa Parks," Sarah Michelle Gellar intoned to Lowdown the other night at the DKNY Jeans party. "There was a woman who did so much for other women. And nowadays, women are famous for the way they wear their hair. Or designers they wear. Or who they date."

Hmmmm. Can’t imagine who she’s talking about.

Buffy continued: "Someone like Rosa Parks reminds you that fighting for women’s causes is the most important thing we can do."

The 28-year-old Gellar was chatting away in a VIP banquette at Hiro, playing host to the festivities - benefiting the nonprofit Step Up Women’s Network.

But she clammed up a bit when asked about her steamy on-camera encounters with Dwayne (The Rock) Johnson on the set of "Southland Tales," which just wrapped shooting in L.A.

"You’re the first to ask," said Gellar, who plays a porn star in the movie. "Dwayne and I have been friends for a while, so it’s always weird to go to work when all of a sudden your friendship is a whole new level of awkwardness."

Yeah, yeah. So is the Rock a good kisser?

"I don’t want him to come after me!" she dodged. "I don’t want to make him mad. It’s the Rock we’re talking about! He’s gonna come after me! Have you seen how large he is?"