By MARCUS WOHLSEN, Associated Press WriterSun Nov 19, 9:05 PM ET

Two peace activists have planned a massive anti-war demonstration for the first day of winter.

But they don't want you marching in the streets. They'd much rather you just stay home.

The Global Orgasm for Peace was conceived by Donna Sheehan, 76, and Paul Reffell, 55, whose immodest goal is for everyone in the world to have an orgasm Dec. 22 while focusing on world peace.

"The orgasm gives out an incredible feeling of peace during it and after it," Reffell said Sunday. "Your mind is like a blank. It's like a meditative state. And mass meditations have been shown to make a change."

The couple are no strangers to sex and social activism. Sheehan, no relation to anti-war activist Cindy Sheehan, brought together nearly 50 women in 2002 who stripped naked and spelled out the word "Peace."

The stunt spawned a mini-movement called Baring Witness that led to similar unclothed demonstrations worldwide.

The couple have studied evolutionary psychology and believe that war is mainly an outgrowth of men trying to impress potential mates, a case of "my missile is bigger than your missile," as Reffell put it.

By promoting what they hope to be a synchronized global orgasm, they hope to get people to channel their sexual energy into something more positive.

The couple said interest appears strong, with 26,000 hits a day to their Web site, http://www.globalorgasm.org.

"The dream is to have everyone in the world (take part)," Reffell said. "And if that means laying down your gun for a few minutes, then hey, all the better."