UPDATE at 9:13am on 8/5: Pattinson now says his story on Kimmel was a "joke," telling EW:

The story I told on Jimmy Kimmel last night seems to have spiraled out of control. What didn’t come across is that this was supposed to be a joke. No one at all expected or assumed that anything like that would happen on the “Good Time” set. We are all huge animal lovers and would obviously never do anything to harm an animal. Everyone involved in “Good Time” are amazing professionals and have come together to make a movie that I’m extremely proud of. I feel embarrassed that in the moment, I was trying to make Jimmy laugh, only to create confusion and a false impression.

Original story below...

Robert Pattinson impressed PETA on "Jimmy Kimmel Live!" Thursday night.

The People for the Ethical Treatment of Animals told TooFab the organization is applauding the "Good Time" actor for sharing a strange story from set: The director and animal trainer encouraged Pattinson to actually masturbate a dog for a scene, but he politely declined.

Although the actor was most likely intending the story to be a harmless late-night anecdote, PETA isn't taking the story as a joke. The organization said it is investigating to make sure the law was not broken.

"PETA depends on actors and crew members to come forward when they see mistreatment, whether it involves a dog who is being forced into churning water on the set of 'A Dog's Purpose' or an A-list actor who is being asked to molest his canine co-star," the animal rights' advocate said in a statement obtained by TooFab. "Robert Pattinson is our kind of guy (and everyone's who has a heart) for refusing to masturbate a dog -- which is like child molestation -- and for talking about it so that the public can see that once again animal trainers' top priority is money and animals' interests and well-being are often ignored. PETA is currently investigating whether the law was broken in this instance."

The 31-year-old actor detailed the scene while telling Kimmel about the incident while filming the new drama directed by Ben and Joshua Safdie, though it's unclear which director he's talking about in the story.

"There's a lot of things in this movie which really cross the line of reality. It's not even on the line, it's way beyond the line. There was initially this scene — I don't think I should say this — but it's like, my character, Connie, has this affinity with dogs. He thinks he is a dog in a previous life,” Pattinson said. "He thinks he has control over animals and stuff."

"There's this one scene we shot where basically a drug dealer bursts in to the room and I was sleeping with the dog and basically giving the dog a hand job," he continued. Pattinson said both the dog breeder and the director encouraged him to do it for real, but he refused.

"I asked the trainer, because the director was like 'just do it for real man, don't be a p--y,'" Pattinson said. "And the dogs owner was like, 'Well, he's a breeder. So you can. You've got to just massage the inside of his thighs.'"

"I didn't agree to do the real one, we made a fake red rocket," he said. "It was fun. It'll be on the DVD extras."

The directors disputed the story on Twitter:

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