Jennifer Aniston was repportedly not entirely blameless in the divorce with Brad Pitt as a new rumor claimed that she cheated on Angelina Jolie's husband with her "Friends" co-star Matt LeBlanc.

Justin Theroux's fiancée has been painted in the tabloids as the victim when she divorced the "Fight Club" actor.

But according to Star magazine, who talked to Matt LeBlanc's dad, Paul, Jennifer Aniston hooked up with Matt LeBlac while still married to Brad Pitt.

Talking about his son, Paul alleged, "He had fun, that's for sure. He even had a relationship with one of the girls...Jen. They would make out in the dressing rooms. He told me about it - it was when she was married to Brad Pitt."

Lainey Gossip also pointed out that Paul LeBlanc's accusations about Jennifer Aniston cheating on Brad Pitt should be taken with a grain of salt, taking into account his interview with Star tabloid where he said, "Matthew is not a compassionate individual."

"He is a control freak, and the more money he has, the more fucking ruthless he is. One minute he's extremely generous, and the next he's ripping you apart."

The website went on to add, "A greedy source is generally not a good source."

A rep for Jennifer Aniston insisted that she never cheated on Brad Pitt.

"It is absolutely 100 percent false! Jennifer has never had a romantic or sexual relationship with Matt LeBlanc," the rep said.

In the Esquire profile piece for Brad Pitt, the actor's makeup artist Jean Black had something to say about his marriage to Jennifer Aniston.

"I think Brad was ready to soar when he met Angie," the makeup artist said. "This is not to say anything negative about Jennifer. I was part of that and I know that he and Jen are very good friends and he cared deeply for her."

"But in Angie he saw a very adventurous person who was grabbing on to life and taking it to its nth degree. It was intriguing because I felt Brad had that in him and wanted to unleash it."