Cher Reveals 'Unbelievably Handsome' Warren Beatty, Then 25, Kissed Her the First Time They Met When She Was 15

Cher and Warren Beatty almost — quite literally — crashed into one another when they first met.

In the first half of Cher: The Memoir, Part One , the "Believe" singer, 78, recalls the first time she met the Dick Tracy actor, now 87.

At 15, Cher borrowed her adoptive father Gilbert's car and was cut off by a Lincoln convertible on Sunset Boulevard. She confronted the man, who was "unbelievably handsome," and turned out to be Beatty, who was 25 at the time and had just starred in the 1961 movie Splendor in the Grass with Natalie Wood.

"Ten years older than me, Warren was so drop-dead gorgeous I had to steady myself as he asked my name," Cher recalled.

After buying her cigarettes, the Heaven Can Wait actor ended up inviting the "I've Got You Babe" hitmaker to his place to get something to eat. While Cher initially hesitated before accepting the invitation because of her curfew, she ultimately obliged.

They went to Beatty's home, in the Trousdale Estates neighborhood in Beverly Hills, where the Mermaids star received a tour and enjoyed some cheese and crackers, and he "then leaned in and kissed me," she writes in the book, adding that she "kissed him back."

Afterward, Cher borrowed Natalie Wood's bathing suit to go swimming with the Bugsy actor and ended up staying out until 4 a.m.

When she got home, her parents were furious Cher had defied her curfew again.

"You will not go out again until you're twenty-one!" her mother Georgia Holt told her.

The next day, Beatty called and asked Cher to go to dinner and then swimming, but she turned him down because she was in trouble.

That all changed when he asked to speak to Cher's mother, who "melted" when she learned who was on the other line.

"Why didn't you tell me you were with Warren Beatty?" she asked Cher, who would go on to become friends with Beatty through her one-time boyfriend David Geffen.

Reps for Beatty did not immediately respond to PEOPLE's request for comment.

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Cher: The Memoir, Part 1 , which hit shelves on Tuesday, Nov. 19, xplores Cher's "extraordinary beginnings through childhood to meeting and marrying Sonny Bono — and reveals the highly complicated relationship that made them world-famous, but eventually drove them apart."