While Channing Tatum and Jonah Hill are busy anticipating the opening of "22 Jump Street," there is still some unfinished business from the first film in the series.

The actors stopped by "Conan" on Monday, and Conan O'Brien called them out about an x-rated bet they'd made before the premiere of "21 Jump Street."
As Channing tells it, he and Jonah decided to make a wager about how well their movie would perform on its opening weekend, but instead of betting something like money or gifts, they decided that the loser would have to kiss the winner's private parts. (Yes, you read that right).

"Over the boxers," Hill quickly explained. "I'd say that's a key piece of fabric for the story."

Tatum won the bet, as the film made $36.1 million in its opening weekend, but Hill hasn't made good on the terms yet. Tatum said that he offered to let Hill double down, but Hill said his "gambling career has come to an abrupt end."

Check out the video above to hear the hilarious story!

What do you think of the naughty bet? Sound off below.

Hot Videos