Very few movies have casts with as much real chemistry as The Hunger Games, and when stars Jennifer Lawrence and Josh Hutcherson spend a weekend together having fun with fans and fellow stars, things get predictably adorable.
Speaking with ET at Comic-Con International in San Diego, California on Thursday, the 24-year-old actress revealed that sometimes they need to conceal their identity at the massive fan convention by wearing a mask.
MORE: 17 Things We Learned About The Hunger Games Cast During Their Final Comic-Con Visit
In fact, the 22-year-old Hutcherson even showed off a picture he took of himself standing in front of The Hunger Games booth while rocking a mask and going totally undetected.
But pulling one over on convention-goers wasn't where Hutcherson stopped. No, he wasn't going to be happy until he scared the daylights out of his co-star.
"He burst into my room and scared the life out of me," Lawrence recounted, adding the somewhat gross detail that the mask make Hutcherson super sweaty.
WATCH: Jennifer Lawrence Gets Pranked with Crickets by Mockingjay Co-Star
"I was about to go out the door and we're both going to the same event. I was like, 'Are you going to shower?'" Lawrence said, laughing. "I don't think he did."
Apparently, playing practical jokes on Lawrence is sort of a pastime for her co-stars. Check out the video below to hear about the time she got pranked with a jewelry box filled with crickets.