Rep Explains: Why Gisele Was Kissing Another Man

 LORENVU/NIVIERE/SIPA; Slaven Vlasic/Getty Images

Last Thursday, Gisele Bundchen was photographed kissing a man — not her husband, Tom Brady — at the Vogue 90th Anniversary party in Paris.

PHOTOS: Stars caught cheating

Bundchen's mystery party companion: NYC art dealer Helly Nahmad.

A rep for ther supermodel, 30, tells "This is her friend of 15 years, Helly. Her first New York friend when she moved here."

Nahmad — who once dated another Brazilian model, Ana Beatriz Barros — is fluent in Portugese and was "the only one [Gisele] could speak to [when] she spoke no English," the rep continues.

"He is very much part of her close circle of friends. No worries there!"

Nahmad himself also explained their longtime friendship to Brazilian newspaper O Dia (via Huffington Post), noting that he introduced her to old flame Leonardo DiCaprio.  What about that kiss? "Gosh, it was a kiss on the cheek," he said, claiming that the camera caught them at a deceptive angle.

He added that New England Patriots star Brady even saw the talked-about photos of Nahmad and his wife — and laughed.

Married since February 2009, Bundchen and Brady welcomed son Benjamin last December.

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