Adult film “actress” Sasha Grey rarely needs an excuse to take off her clothes, but the star of This Ain’t The Brady Bunch XXX is disrobing for a good cause as part of PETA’s latest Animal Birth Control (ABC) ad.

The porn darling has starred in hundreds of adult films and recently starred in Academy Award–winning director Steven Soderbergh’s film The Girlfriend Experience. Now the self-professed “sexpert” is encouraging pet owners to spay and neuter their animals in her new campaign for the animal rights group. Sasha’s PETA ad was revealed at the Adult Entertainment Expo in Las Vegas on Sunday.

“I think spaying and neutering is incredibly important. … [I]t keeps the animals out of the shelters, and there’s too many unwanted animals out there already,” Sasha explains.