Last March, Kermit, 60, got flirtatious with Muppets Most Wanted costar Tina Fey – who wed composer, director and producer Jeff Richmond in 2001 – during a press conference in Los Angeles. Piggy, 41, arrived conspicuously late to the event.
"I'm actually stretching myself quite a lot as a dramatic actor in this thing. I did many, many scenes with Tina. One particular scene stands out to me. It was a closed set. It was the scene where she licks me," Kermit told reporters. "But I just want to clear it up right here with the press that Tina is happily married. Jeff was there during the shooting. Closed set."
Fey, 45, also suggested that her character, prison guard Nadya, would be a better match for Kermit.
"Nadya is less work than Piggy," she explained. "You can give Nadya bag of hot rocks for Valentine's Day. She will not care."
When Piggy arrived, they exchanged some Mean Girl-worthy compliments about each other's good looks.
"We didn't really do much together on the movie," Piggy said.
"No, I refused to meet you," Fey said. "You look so pretty."
"Oh, thank you, yes," Piggy responded, followed by a long pause. "I think you look pretty, too. So you stay far away, I'm sure you look pretty."
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Kermit and Piggy met in 1974 through mutual friend Jim Henson and have been on-again, off-again ever since. Their ups and downs will be chronicled in ABC's The Muppets, premiering this fall.
Reporting by SCOTT HUVER