"We are not rooting for the same team," Moore, 48, said with laugh while holding her husband's hand at the Audi Forum Dallas pre-Super Bowl cocktail party Friday night.
Her team pick? "I may be wearing the Steelers colors tonight, I am a football fan, but I have to go with the Packers," said Moore.
With a frown, Kutcher, who turns 33 Monday, countered with: "I can't root for the Packers. It is against my code of ethics."
Team rivalry aside, the couple kept cozy throughout the night, snuggling and holding hands. They even answered in tandem when asked why they were braving the cold to be out and about in Dallas.
"Football!" said Kutcher as Moore chanted, "FOOOOTBAAAALL!"
Moore had one more reason to root for Green Bay: Their quarterback played on her team.
"Aaron Rodgers was my fantasy league quarterback," she said. "So I have to pull for them."
After the Audi party, the couple hit several other Friday night gatherings despite the ice and snow. These included catching the Black Eyed Peas at the Bacardi and Sports Illustrated bash and dropping in on the GQ XLV Super Bowl Party, presented by Lacoste, Patron and Cadillac.