Liam Neeson teased details about a sex scene with Pamela Anderson that fans will see in "The Naked Gun.""There's a threesome," Neeson told Stephen Colbert during Wednesday's episode of "The Late Show." "And one of the participants is very cold." The actor revealed the scene in question was his first time using an intimacy coordinator. Neeson claimed the experience was "a little bit strange.""Well, Pamela and I knew..." Neeson began, before Colbert interrupted with, "You guys knew what to do? But did you know how to bring in a third or was that old hat for you?""No, that was a first," Neeson quipped while laughing. "That had to be specifically choreographed."LIAM NEESON CONFESSES HES MADLY IN LOVE WITH CO-STAR PAMELA ANDERSONNeeson and Anderson have been "enjoying each other's company" after they wrapped filming for "The Naked Gun.""It's a budding romance in the early stages," a source confirmed to People magazine. "It's sincere, and it's clear they're smitten with each other."LIKE WHAT YOURE READING? CLICK HERE FOR MORE ENTERTAINMENT NEWSNeeson and Anderson have been promoting the comedy reboot, which premieres Aug. 1.The "Naked Gun" co-stars appeared on the "Today" show on Tuesday morning, and at one point during the show, they were shown with their arms around each other in what appeared to be a passionate embrace.Neeson, 73, gave Anderson, 58, a steamy kiss before the pair turned to the camera, looking surprised. The hosts were heard in the background saying, "Theyre making out on the Today show!"CLICK HERE TO SIGN UP FOR THE ENTERTAINMENT NEWSLETTERNeeson hinted at the relationship rumors during their interview, when host Craig Melvin asked, "Whats the deal here?"After joking around, Neeson explained, "I had never met Pamela before. We met on set. And we discovered we had a lovely, budding chemistry as two actors."The "Taken" star added that nothing has been forced between the two. "Its like, Oh, this is nice. Lets not mold this. Lets just let it breathe. And thats what we did."Neither star has confirmed nor denied a romance.Fox News Digital's Stephanie Giang-Paunon contributed to this report.