Love-rat MATT LAUER cheated on his beautiful wife Annette Roque BEFORE they even walked down the aisle!

The broadcaster had an affair with Jessica Thorman, a married Florida woman, before his 1998 wedding.

Jessica’s hubby, Zoltan Molnar, accused Matt of wrecking their marriage, telling The National ENQUIRER: “He’s not the goody-goody nice guy he looks like on TV!”

On the show, Matt became smitten with the hot blonde actress Julie Bowen, who was a guest several times on “Today.” She was actually presented to him as Matt’s “Secret Santa” gift.

Rumors dogged Matt and former show intern Jenna Wolfe, who Matt reportedly persuaded his bosses to hire as a show “correspondent.”

Unconfirmed reports linked Matt with musician Alexis Houston, who insisted there was no romance.

The gossip mill also followed Matt and longtime “Today” co-host Katie Couric, who told Howard Stern she had a crush on her former colleague. Matt’s admitted he found Katie “very attractive.”

While both denied any “closed set” affair took place, Matt can’t stop his wandering eye. In July 2013, we reported the hound dog was nabbed flirting with a 20-year-old college coed.

The ENQUIRER reported Matt was “obsessed” with Lucie Fink, a Johns Hopkins University student who was appearing on the show.

Matt reportedly sent Lucie flirty texts, whisking her away to a swanky New York City hotel for lunch – apparently behind the back of Annette.

Despite Matt’s wandering eye, Lucie’s father said he believed Matt’s dealings with his daughter were “professional and appropriate.” Matt has denied ever cheating on his wife.

But this past summer, Matt was caught “trawling for trouble” anew.

Exclusive photos published in our July 28 issue exposed the skirt-chaser relaxing on his boat with a mystery blonde in New York’s glitzy resort area, the Hamptons.

An eyewitness said, “If they didn’t have anything to hide, then why did the girl duck and try to cover her head to avoid being photographed?”