Brad Pitt and Angelina Jolie’s relationship started while the actor was still married to Jennifer Aniston.

After their casting in “Mr. & Mrs. Smith,” the couple fell in love. At that time, reports swirled that Pitt cheated on Aniston with Jolie, but the actor denied the allegations.

However, a body language expert is convinced that Pitt and Jolie were already seeing each other back in 2005. In the book “The Yes Factor: Get What You Want, Say What You Mean,” author Tonya Reiman said that there was a defining factor in Pitt and Jolie’s relationship.

Despite their attempts of trying to conceal the real status of their relationship, Pitt’s body language at the ShoWest’s Fox Luncheon at the Paris Hotel in Las Vegas decades ago gave it all the way.

“Brad has his right hand in his pocket. He is unsmiling, lips pinched in. The lip roll is a gesture frequently used if a person has a secret he’s trying not to reveal. You have the image of someone hiding something,” she said.

Reiman also talked about a photo of Pitt and Jolie at the event that they attended together. Since the couple was aware that Aniston will be there, they tried to distance themselves from each other. Pitt also avoids an awkward run-in with Aniston at that time.

“Typically, when actors take pictures together, they take pictures together. In this picture, it looks as if they are purposefully trying to create a ‘disconnect’. In doing so they unconsciously reveal what many had already guessed,” she said.

Shortly after Pitt and Aniston’s divorce, the “Friends” star talked about the end of her marriage. Aniston said that she didn’t have any idea that Pitt was having an affair.

During her interview with Vanity Fair, Aniston also had nothing but good things to say about Pitt. She said that she and her ex-husband helped each other through a lot and she values this.

“The Morning Show” star also said that even though their relationship was complicated, it was still beautiful.

Pitt and Aniston tied the knot in 2000 and they announced their divorce five years later. Shortly after their split, Pitt and Jolie made their relationship public.

While speaking with Vogue, the “Maleficent: Mistress of Evil” star said that she didn’t intend to fall in love with Pitt. But while filming their first joint film together, she found herself looking for him on set.