The Insider.com

It's hard to imagine that a sexy couple like Paula Patton and Robin Thicke have any problems keeping the spark alive, but just like any marriage, Patton admits it takes hard work—the dirty, sext-y kind.

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Between lengthy stints on set and promoting her films around the globe (as she is now with M:I-Ghost Protocol in Dubai), Paula says it does indeed become difficult to set aside quality time with her hubby, disclosing they often try to keep it spicy with a little bit of old fashioned "dirty text[ing]" which then "makes [the reunion] so sweet."

And before any wannabe hackers out there get any ideas, Paula says there is a condition to their racy exchanges—"No pictures!"

Mission: Impossible-Ghost Protocol opens in IMAX and select theaters this Friday.