Uh-Oh, Amal — George Clooney Caught With Mystery Blonde!

The National ENQUIRER caught George Clooney getting awfully friendly with a lady outside the Asanebo Sushi restaurant in Studio City, Calif. — and that lady sure wasn't his wife! Glamorous international attorney Amal Clooney was nowhere to be seen as George squeezed his lovely companion.

There also weren't any movie cameras around filming a love scene — although the encounter was still immortalized on film! The ENQUIRER has already reported that the longtime playboy's marriage is on the rocks after just a year, with insiders providing an intimate look into the strained union!

“When he proposed," said a source, "the deal was struck on very clear terms. This is a marriage of equals, and Amal takes her work far too seriously to make compromises, so the only way it can work is if George fits his schedule around her." But since then, the marriage has been crumbling!

“It’s a nightmare for George, and he wants out,” the source said. According to an insider, the 54-year-old heartthrob’s marriage was a sham from the start, based on a “wedding contract” that the superstar regards as not worth the paper it’s printed on, sources told The ENQUIRER.

“To George, his marriage certificate is just like any other contract,” an insider revealed, and contracts can be renegotiated. “Unfortunately, at this point a renegotiation means a $220 million divorce!”

Meanwhile, The ENQUIRER has covered how Amal has become an embarrassment to George — trying to keep him away from his Hollywood pals, and even distancing herself from being part of the celebrity scene.

“I think it’s wonderful,” Amal recently told NBC News’ Cynthia McFadden, “celebrities would choose to spend their time or energy or, you know, the spotlight that they have to raise awareness about these causes.”

But then Amal had to make it clear that she was in a different category than George’s longtime pals! “I don’t really see myself in the same way because I’m still doing the same job that I used to do before,” said Amal, who cloaks her own scary-skinny frame in a wardrobe that includes $2,000 outfits by designer Stella McCartney, and a $3,440 Chanel suit.

The ENQUIRER also revealed how Amal put her foot down over George’s annual motorcycle ride with buddy Rande Gerber, 53, who’s married to supermodel Cindy Crawford. Our insiders claimed George dug in the heels of his well-worn biker boots and refused to give up the “sacred” trip he’s taken with Rande for the past 15 years — and from the looks of things, George is still feeling born to be wild!