It's all for the craft! Chris Pratt visited Late Night with Seth Meyers on Wednesday, July 30, and revealed that he exposed himself to their mutual friend Amy Poehler while shooting an episode of NBC's Parks and Recreation.

The indecent exposure happened on the sixth episode of season two, when Ann, played by Rashida Jones, called over Pratt's character Andy, her ex-boyfriend, to settle a legal dispute. 

"[Andy] got the signals crossed somehow and thought that she wanted him to come to the house naked and hook up," the Guardians of the Galaxy actor, 35, explained to Meyers of the scene. "So I show up naked at the house. Leslie is there—Amy Poehler is there—to receive a naked Andy."

For the first few takes, Pratt had been wearing flesh-colored underwear. "I'm not quite eliciting the response that I was hoping to from Amy," he said. "She's supposed to say, 'Oh, my gosh! Your penis!'"

To get a genuine reaction from Poehler, he decided he was going to "go snake out" for the next take. 

"I went trou-down and the reaction was awesome! It's the one they used."

While Jones went along with it, Poehler was visibly shocked when she opened the door. Although the moment made the final cut, Pratt said NBC swore him to secrecy in an admonishing note. 

"In the letter they did say, like, 'Hey listen, you can't do this, and also, probably don't go joke around about it. It's not a joking matter.' And it's not," he said, in between laughs. 

Watch the funny video—and Poehler's priceless reaction—above!