ANDERSON COOPER BOYFRIEND CAUGHT CHEATING!

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No sooner than he’s out of the closet than CNN ‘s ANDERSON COOPER is humiliated as paps snap his boyfriend kissing ANOTHER man!

In the shots, Benjamin Maisani is sitting on the grass in a New York park trading kisses with a dark-haired hunk, RadarOnline.com reported.

Cooper ‘fessed up to what show biz insiders already knew just more than a month ago, issuing a statement, "The fact is, I'm gay, always have been, always will be, and I couldn't be more happy."

As The ENQUIRER previously reported the news anchor, 45, has been in a relationship with Maisani, 39, for several years, and they reportedly live together in Cooper's Manhattan townhouse, a converted fire station.

While Cooper is busy with his high-profile television career, his boyfriend owns the gay bar Eastern Bloc in the East Village.

Although a regular tweeter, Anderson has not updated his social networking page since the photos were published on Sunday.

He attended World Humanitarian Day at the United Nations Friday, taking in a Beyonce performance there.

Mr. Cooper, we have Liberty Ross on Line Two…please hold.