CHER DISHES TEEN FLING WITH BEATTY!

Notorious cougar Cher is well known for robbing the cradle, but that's just what happened to her when she was 15 years old and got picked up by screen heartthrob Warren Beatty!

In a wild new memoir, the 78-year-old If I Could Turn Back Time singer recalls how she was driving along Sunset Boulevard in her stepdad's Buick when a white Lincoln convertible cut her off.

The already feisty superstar-to-be followed the car into the parking lot of famed Schwab's Pharmacy.

“I jumped out and yelled, ‘What the f***’s the matter with you? You almost hit me!’” Cher writes.

The driver was wearing sunglasses, but Cher says she could tell he was handsome and had “one of the sexiest smiles I’d ever seen.”