The Matt Lauer is cheating on his wife stories have been going on for years and years.

Today, Page Six brings another woman to the Matt Lauer Mistress party. The gossiper writes that Giada De Laurentiis is firing back at rumors she was romantically involved with several men — including the “Today” show’s Matt Lauer — before announcing her divorce from fashion designer husband Todd Thompson.

The TV chef responded to a story in Star magazine that she had a flirty interlude in 2011 with the married Lauer in Barbados, where he was filming a “Where in the World is Matt Lauer?” segment.

A source told Star, “It was almost uncomfortable, together in the ocean in bathing suits, like high school sweethearts.”

Page Six reported in November 2013 that the two had a “very cozy” dinner alone at Park Avenue Autumn, which their reps said was a business dinner. We also reported the Food Network star was at a festive dinner with Bobby Flay two days before she announced her divorce on Dec. 29.

But Giada responded Wednesday, “My long-time friendships with my co-workers Matt Lauer and Bobby Flay are exactly that — long-time friendships.”

A “Today” rep told us of the Lauer report, “This story is false, period.”