The former "Home Alone" star, 24, when asked by Jackson attorney Thomas Mesereau Jr. what he thought of the charges against Jackson, replied under oath: "I think they're absolutely ridiculous," the Associated Press reports.
As for any possibility that Jackson, 46, might have molested Culkin while the younger man was asleep, the actor replied: "I find that unlikely ... I think I'd realize if something like that was happening to me."
During his hour-long testimony, Culkin explained that he first went to Neverland at the age of 10 and shared a bed with the pop star more than a dozen times, up until the age of 14, claiming that by then he'd "begun to enjoy his privacy a little bit more." He said that his parents never had a problem with him sleeping in Jackson's bedroom
"Somebody told me, 'You should probably check out CNN because they're saying something about you.' I just couldn't believe it," Culkin said, adding: "It was amazing to me that nobody even approached me and asked if these allegations were true."
Prosecutors countered that they had tried to speak to Culkin, but were rebuffed by the actor's lawyers.
Following Culkin's testimony, two videotaped interviews with Michael Jackson himself were played by the defense (Jackson has not taken the stand). In the two hours of taped footage, the star described his "pure" love of children and likened himself to Mother Teresa, Martin Luther King, Gandhi and Princess Diana, reports The New York Times.
"Didn't Jesus say, 'Bring on the children?'" Jackson says on tape.