Channing Tatum and Jenna Dewan-Tatum
05/30/2013 at 01:00 PM EDT
Together for nearly eight years, Channing Tatum
and pregnant wife
Jenna Dewan-Tatum make a Hollywood marriage seem easy breezy.
"You have to want it," Tatum, 33, tells Cosmopolitan
in its July issue. "Jenna's and my thing is checking in with each other all the time, like, 'On a scale from one to 10, how much do you love me right now?' And you gotta be honest, and you've got to want an honest answer."
Although he's about to become the Sexiest Dad Alive
, the upcoming White House Down
star admits he does have a side that isn't all that appealing.
"I'm a fat kid on the inside," Tatum says. "I love food so much, and I fluctuate about 25-30 pounds between movies. I feel like I have to do a chess movie that requires very little movement at some point, just so I can eat pizza and play chess on the beach all day. And then eat more pizza and cheeseburgers and drink beer. That'd be amazing. I'd give anything for that. I gotta figure that movie out."
When he's not working, spending time with his wife, 32, or eating, the actor is busy taking heat from his pals.
"My friends keep me grounded," he says. "It's embarrassing to tell you how much my friends make fun of me. Seriously, when you have a doll made of your face, it's ridiculous how creative your friends can get ... pictures, videos, little animated cartoons they've made. And they're way, way
not PG-13. So I get chopped down to size all the time."