Chris Pratt had a very NSFW reaction to 'Guardians of the Galaxy' director James Gunn admitting he has a life-size prosthetic body double of the actor in his office

• "Guardians of the Galaxy" director James Gunn has a prosthetic body double of Chris Pratt in his office.
• Pratt had a very NSFW reaction when Gunn said people would "come in and scream" when they saw it.

It's fair to say that the "Guardians of the Galaxy" movies can get away with being cheekier and funnier than other movies in the Marvel Cinematic Universe simply because director James Gunn is behind the cosmic misfits.

The 56-year-old director has always injected a sense of naughtiness in his projects, from the likes of "Super," "Slither," "The Suicide Squad," and "Peacemaker."

So, it's unsurprising that he and the "Guardians of the Galaxy Vol. 3" cast have had a lot of fun on the press tour for the sequel.

Speaking to IGN alongside lead actor Chris Pratt, Gunn recalled using a prosthetic body double of the actor in the film, and things got... weird.

The 35-pound fake body is used in a scene early in the movie when Nebula (Karen Gillan) has to carry Pratt's Peter Quill/Star-Lord to bed after he gets too drunk.

Gunn said that the life-size double actually sits in his office, and it surprises people when they visit him.

"I had it in my office for a long time and people would come in and scream," he told IGN.

Pratt seemed very confused by Gunn's comments, retorting: "They would what in it and scream?"

After a moment of awkwardness, the pair quickly descended into laughter as Gunn realized that Pratt was insinuating people were using the fake body for, er, personal gratification, shall we say.

"I was like, 'How many people did you let come in it and scream?'" Pratt said.

Gunn, who struggled to compose himself, then joked: "I let everybody have a crack at old plastic Quill."

Pratt took it a step further, saying: "You're like, 'It's really important that it looks exactly like Chris, and he's asleep with his mouth open.'"

Speaking of NSFW, "Guardians Vol. 3" also contains the MCU's first-ever F-bomb.

Pratt recently recalled how Marvel chief Kevin Feige tried to persuade Gunn not to use it, but the director said he "wanted" to be known for it.