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When it comes to smooching, Kirk Cameron only has lips for his wife.

The former star of the TV sitcom "Growing Pains" refused to kiss the actress who played his wife in his new movie "Fireproof," he told the "Today" show on Monday.

“I have a commitment not to kiss any other woman,” he told the morning show. So his real wife, actress Chelsea Noble, was the body double for the onscreen kiss.

"So when I’m kissing my wife, we’re actually husband and wife honoring marriage behind the scenes,” Cameron told "Today."

The former child star became an evangelical Christian at 17 and is involved in The Way of the Master ministries.

Click here to read the full 'Today' story.