Jackie Kennedy was left unimpressed by Hollywood heartthrob Warren Beatty after the pair had a "disappointing" fling.
The former first lady is said to have had a brief relationship with Warren in 1978 when Jackie was working as a book editor and trying to secure huge stars to write their memoirs.
She's said to have found the actor interesting and agreed to go on a few dates with him before they spent the night together at her Fifth Avenue home.
Ultimately, Jackie told a friend she found Warren to be too self-absorbed and was left "disenchanted" by his bedroom skills, despite his reputation as a ladies' man.
Author J. Randy Taraborrelli has recounted Warren and Jackie's romance in his new book Jackie: Public, Private, Secret.
Taylor Swift seen looking cosy with Matty Healy's mum Denise Welch months ago"When I learned the reason why Jackie was disenchanted with Warren, it made me laugh because we all had that experience," the author said.
Speaking to Fox News Digital, he added: "We often go out with somebody and think they're going to be one thing, and they're totally not. It's disappointing.
"And this brief fling says so much about Jackie's commonality. It's an experience we can all identify with."
Warren had once been desperate to play the role of Jackie's husband, President John F. Kennedy, in the 1963 film PT 109. However, John had the final say in the role and chose Cliff Robertson for the part.
Five years later, when Jackie first set her eyes on Warren, the actor was said to have slept with "almost every major female star in show business under the age of 50".
His biographer claimed Warren had hooked up with more than 10,000 women before he later married Annette Bening.
Jackie is thought to have told her friends that she was "totally done" with Warren because he "couldn't stop talking about himself.
Taraborrelli said Warren would always speak to Jackie about his career, something she "didn't care" about.
In his book, the author also claimed a close friend had asked Jackie to rate Warren's bedroom skills. She's said to have replied: "He's fine. Men can only do so much, anyway."