Channing Tatum showed off his amazing physique in last year's blockbuster "Magic Mike," but the actor revealed in a new interview that he doesn't always look so ripped.

"I'm a fat kid on the inside," he told Cosmopolitan magazine for its July issue. "I love food so much and I fluctuate about 25-30 pounds between movies."

In fact, Tatum, 33, who was crowned People magazine's "Sexiest Man Alive" last year, added that a dream role for him would be "a chess movie that requires very little movement."

That way, "I can eat pizza and play chess on the beach all day," he said. "And then eat more pizza and cheeseburgers and drink beer. That'd be amazing."

But it'll have to wait. Right now, Tatum is filming "Jupiter Ascending" in London and preparing for his very pregnant wife, Jenna Dewan-Tatum, to give birth to their first child. So, how does the couple of eight years manage to balance so much at one time?

"You have to want it," he tells the magazine. "Jenna's and my thing is checking in with each other all the time, like, 'On a scale of 1 to 10, how much do you love me right now?' And you gotta be honest, and you've got to want an honest answer."