Giada De Laurentiis is firing back against rumors that she cheated on her husband with a few famous men.

Star Magazine reported that the Food Network star, who recently announced her split with fashion designer husband Todd Thompson after 11 years of marriage, cheated on her husband with John Mayer and claimed that in 2010 the two "shared a steamy tryst at an NYC hotel"

"I have never ever been romantically involved with John Mayer," De Laurentiis told Gossip Cop about the rumors. "I met him twice at least five or six years ago at public events along with hundreds of other people. The small amount of face time with John was in rooms filled with other attendees at these events. I have not seen or even heard from him since. The allegation of an affair was a fabrication back in 2010 and remains so today."

De Laurentiis is said to have also been romantically involved with "Today" show host Matt Lauer and fellow Food Network star Bobby Flay. Star Magazine reported De Laurentiis and Lauer flirted with one another while he was filming a "Where in the World is Matt Lauer?" segment in 2011.

Days before announcing her divorce the 44-year-old was spotted having dinner with Flay. A source told the publication that the "chemistry has been no secret at all to people around them."

However, De Laurentiis insisted that her relationships with Flay and Lauer are no more than platonic, telling Gossip Cop, "My long-time friendships with my co-workers Matt Lauer and Bobby Flay are exactly that -- long-time friendships. There has never been a romantic relationship with these two men."

Star also claimed that the men planed to extort the celebrity chef for money in order to keep quiet about their affairs.