How Princess Leia, Carrie Fisher, lost her virginity to ‘After Hours’ star Griffin Dunne

Carrie done Dunne the deed.

Griffin Dunne — the son of true crime writer Dominick Dunne — admitted to deflowering pal Carrie Fisher.

“I was doing her a favor,” he told Page Six. “She had a boyfriend and she didn’t want him to know she was a virgin and she trusted me and gave me the honor.”

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Dunne, 68, added that the act itself wasn’t mechanical. “No, we were into it,” he explained. “We had a few practice sessions.”

“Look at her, she was gorgeous!” he said of the late star and close friend.

“I couldn’t have been luckier,” he added before confessing he was “hardly Casanova, but I was a tad more experienced.”

He stayed friends with the “Star Wars” actress up to her death in 2016 at 60.

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“We had a core group of friends,” the “This Is Us” alum shared, adding that he’s still in contact with them via a group chat, where they share “a memory” of Fisher, “an irreverent filthy story or the funniest, most unpublishable things you can imagine.”

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Dunne has a memoir coming out in June titled “The Friday Afternoon Club” — which chronicles his family, including Vanity Fair scribe dad Dominick, murdered sister and “Poltergeist” actress Dominique and aunt Joan Didion.

Before becoming an actor, “The Girls on the Bus” star said he wanted to be a writer or journalist — but he got kicked out of high school. “I was in Colorado in a boarding school and I got caught smoking pot,” he divulged. “Colorado, by the way, was the first state to legalize pot, so my timing was a little off.”

Dunne recently said Tim Burton was originally attached to direct the seminal 1980s NYC film “After Hours.”

“It would have had a darker visual look,” he told the British Film Institute.

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“Everything would have been different . . . I think we would have looked like we were already dead and that ‘After Hours’ was taking place somewhere in the underworld. In an alternate universe, I would have loved to have seen that movie.”