Matt Damon may be one of the nicest people in Hollywood, but that doesn’t mean he doesn’t have a mischievous side.

As fellow actor John Krasinski recounts in the August issue of GQ, “The day I met [Damon] was the scene in ‘The Adjustment Bureau’ where he kisses my wife [Emily Blunt] in a very big way. And so when I went up to him, he turned to me, and the first thing he ever said to me was, ‘Hey, man. I was just totally tonguing your girl.’”

Noticing that the joke didn’t go over quite as expected, Damon quickly snapped back to his usual, perfectly nice self.

“And I went, ‘Oh, OK. Cool.’ And he saw my face and he just cratered,” Krasinksi continued. “He said, ‘Oh, my God. I am so sorry. I am so sorry.’ ”

Krasinski – who co-wrote and starred with Damon in “Promised Land” – and Blunt have since gone on to become good friends with the “Jason Bourne” star and his wife, Luciana.

“The four of us hang out constantly and drink way too much together,” Blunt told the magazine. “Red wine for the three of us, and John’s allergic to red wine, so he has to take down the bottle of white by himself. Which is not an issue.”

Allergy or not, Damon wasn’t about to let his pal off for making the couples’ hang-outs more complicated than they used to be.

“That allergy is recent. He used to not be allergic to red wine, so we were perfect dinner companions. Now everything is off,” Damon said.