Josh Brolin wants to make one thing very clear: he's never cheated on his wife, Diane Lane. "I don't f*** around on my wife," the 'Jonah Hex' actor tells Playboy in their upcoming October issue (via UsMagazine.com). "I mean, check her out, man. My relationship with my wife is fantastic."

Brolin was photographed kissing 'Grindhouse' co-star Marley Shelton earlier this year though both celebrities denied any wrongdoing at the time.

"Marley is my wife's and my great friend," the actor said of the infamous photo. "I'm an extremely affectionate guy...Marley and I were out together, turned around and saw there were cameras. That's it."

More excerpts from his candid Playboy interview after the jump.