People for the Ethical Treatment of Animals hopes that when their activists bare all, they will save all bears and other animals from what they consider inhumane treatment.
Peta.xxx will be a full-nudity site featuring PETA activists. The site will launch in November or December.
Previous campaigns have used nearly-nude activists in street demonstrations.
"We get as naked as we're able to legally. In most cities and states that means you still have to wear pasties and some coverage on the bottom," spokeswoman Lindsay Rajt said in an interview with the AFP.
"With the triple-X domain you won't have those limitations," Rajt explained.
The idea is to lure people in with salacious images, then confront them with graphic footage of animal cruelty.
"As soon as people land on the site, they'll see some tantalizing images. ... But we will also have graphic images that people are not necessarily looking for," said Rajit.
Though some might criticize PETA for exploiting women in an effort to end animal exploitation, Rajt believes these sentiments are ungrounded.