from www.foxnews.com – Only four months ago, Jenna Jameson welcomed twin boys into the world and already the retired porn princess has dropped those pregnancy pounds, is back in tip-top shape and doing what she does best — taking her clothes off.

Pop Tarts has exclusively learned that Jameson shot quite the sexy campaign for Playboy Magazine in Los Angeles on Thursday evening, but in between takes for her upcoming spread the adult superstar took a stand by shooting a new ad for PETA’s McCruelty campaign against McDonald’s.

Although Jameson donned a sexy strapless dress, she is bound to turn you off your Happy Meal.

“Chickens killed for McNuggets are slammed into metal shackles. Spinning blades meant to cut their throats often tear through their wings or bodies instead,” Jameson said in the 30-second spot which is set to hit the airwaves this Fall.

“Many birds survive this terrifying, painful process, only to be scalded to death in defeathering tanks. There’s a less cruel method of slaughter that renders chickens unconscious, but McDonald’s chooses to allow birds to be mutilated and scalded instead.”

A rep for McDonalds did not respond for comment.

But back to something almost as important, like Jameson’s sensuous structure, the starlet credits her strict vegetarian diet, “healthy” relationship with her man Tito Ortiz and oddly enough, paddle-boarding for bringing back her pre-preggo body.