Actor Charlie Sheen allegedly raped 13-year-old Corey Haim in 1986 while on set of the movie "Lucas."

Former actor Dominick Brascia says Haim told him about his encounter with the then 19-year-old Sheen before Haim died in 2010, reports The National Enquirer.

"Haim told me he had sex with Sheen when they filmed 'Lucas,'" Brascia said. "He told me they smoked pot and had sex. He said they had anal sex. Haim said after it happened Sheen became very cold and rejected him. When Corey wanted to fool around again, Charlie was not interested."

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Brascia added that Haim, who died when he was 38, told him he later had consensual sex with Sheen in his 20s.

"He claimed he didn't like it and was finally over Sheen," he added. "He said Charlie was a loser."

Some speculate the "Lost Boys" actor's friend, Corey Feldman, also hinted at the incident without naming Sheen specifically in his book "Coreyography: A Memoir."

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"At some point during the filming [of 'Lucas,' Haim] explained an adult male convinced him it was perfectly normal for older men and younger boys in the business to have sexual relations, that it was 'what all guys do,''' Feldman wrote. "So they walked off to a secluded area between two trailers during a lunch break for the cast and crew, and Haim, innocent and ambitious as he was, allowed himself to be sodomized."

Feldman later explained Haim spent the rest of his life trying to recover "from those early experiences and to get his life together."

Although Feldman did not name Sheen, he also mentioned he disliked the actor in a separate interview.

"I'm not a huge fan of Charlie Sheen ... especially the way he's affected other people that I know," said Feldman in 2011.

Others also back Feldman and Brascia's claims, reports the Daily Mail.

Another anonymous insider alleges, "Corey [Haim] was so confused by the sexual encounter he believed, like so many victims, he was 'in love' with his abuser," adding that the actor bullied the young teen actor into a vulnerable position for sex.

An individual close to Sheen confirms the two had a liaison, but insisted it was consensual.

It would not be the first time Sheen, who is HIV positive, was accused of making inappropriate sexual advances.

A woman alleges Sheen also tried to sleep with her when she was 17 years old.

"I was in a bathroom with him at one point," she said. "He tried to get me to have sex."

Sources: The National Enquirer, Daily Mail / Featured Image: Angela George/Wikimedia Commons / Embedded Images: Bree/Wikimedia Commons, Wikimedia Commons