RYAN O’NEAL is pulling back the sheets on his steamy love life in a shocking new tell-all book that has some of Hollywood’s legendary leading ladies diving for cover.

The list includes Barbra Streisand, Diana Ross, Melanie Griffith and many others who are dreading the release early next year of the Love Story star’s still-untitled autobiography, say sources.

The 69-year-old actor also plans to have the last word in his feud with original Charlie’s Angels star Kate Jackson over barring her from his longtime love Farrah Fawcett’s deathbed.

"Ryan was the Hollywood heartthrob of his day, and all his conquests are terrified he’s going to spill their sizzling secrets," a publishing source told The ENQUIRER.

"His house in Malibu was the busiest bachelor pad in town – and the wild details of those drug-fueled days and steamy nights will make one hell of a read."

When Ryan teamed up with Barbra Streisand in the Hollywood classic What’s Up, Doc? and The Main Event, the couple’s sizzling affair was the talk of the town.

"They had a torrid romance and she was insatiable," said the source. "Now he’s in the position to reveal the intimate details of their physical relationship. Privacy-obsessed Barbra has got to be freaked."

Ryan also had a fling with another diva – Diana Ross – but it ended quickly.

"They both feared their interracial romance might be ahead of its time and impact their careers," revealed the source.

"And Diana was more concerned with sleeping with the man who slept with her idol, Barbra Streisand."

An 18-year-old Melanie Griffith traveled to Paris with the star and his daughter Tatum O’Neal as her best friend and ended up sleeping with Ryan," said the source.

"In the book, Ryan apologizes to Tatum for that indiscretion and many others, including taking his daughter to an opium-smoking orgy when she was only 12."

Ryan had a tough time resisting beautiful women.

While Mick Jagger was off having a fling, O’Neal made a beeline for his gorgeous but vulnerable wife Bianca Jagger, according to the source.

And he scooped up blonde movie goddess Ursula Andress while she was on the rebound from French hunk Jean-Paul Belmondo.

Anjelica Huston, who also lived with Ryan briefly, recently told a friend that if he’s spilling his guts in the book, "she hopes he leaves her out of it completely," according to the source.

The still-handsome star definitely intends to take on Kate Jackson, who stated publicly that she was infuriated when he blocked a deathbed visit to her close friend Farrah.

"While Ryan knows how close Farrah and Kate were, he still feels he made the right decision, limiting Farrah’s visitors during her final days," said the source.

"He wanted to protect Farrah, who was the love of his life, and any decisions he made, he insists, were for her own good."