A New Moon star is posing naked on billboards that will soon go up nationwide.

However, instead of being turned on by the prospect of Robert Pattinson, Taylor Lautner or Kristen Stewart in the buff; we're grossed out at the identity of the actress in her birthday suit.

Christian Serratos, who stars as Angela Weber in the Twilight Saga franchise, has shed her clothes for the latest PETA "Rather Go Naked Than Wear Fur" ad. She's 19 years old.

In the poster, Serratos stands naked next to a tree, besides which it is written:

"Animals killed for their fur are electrocuted, drowned, beaten and often skinned alive. Please don't wear fur."

Isn't the world aware of this by now? THG is as disgusted by fur coat wearing as anyone; but the spoiled snobs that don these items aren't gonna stop doing so because random stars get nude and tell them to.

In fact, this might actually encourage the killing of animals because that act will lead to more naked celebrities in ads!

We felt this way when Charlize Theron, Eva Mendes, Karina Smirnoff and Roselyn Sanchez all bared their bodies on billboards - but Serratos is 19! Isn't that too young to pose naked?