A controversial new book unveils shocking revelations about Jacqueline Kennedy-Onassis’ secret romance with the architect behind JFK’s grave.

The biography titled “Jackie: Public, Private, Secret” delves into the scandalous details of their three-year affair, including candid discussions with Jackie’s former lover himself.

Renowned architect Jack Warnecke, who passed away in 2010 at 91, disclosed the clandestine relationship to biographer J. Randy Taraborrelli on his deathbed, urging secrecy for at least a decade after his demise.

The steamy love affair, previously undisclosed, is extensively explored in the latest book by the American journalist, known for his works on iconic figures like Frank Sinatra and Marilyn Monroe, as well as multiple pieces on Onassis, who passed away in 1994.

The narrative chronicles the couple’s prolonged courtship, detailing their romantic escapades outdoors and even in the Hyannis Port marital bed once shared by Jackie and JFK.

One striking image captures Warnecke explaining an architectural model to Jackie, dressed in the memorable pink Chanel suit she wore on the day of her husband’s tragic assassination in November 1962.

Warnecke revealed feeling abruptly abandoned after disclosing his staggering $1 million debt to Jackie, attributing it to their lavish lifestyle.

The book uncovers a liaison between the late Jacqueline Kennedy Onassis and architect Jack Warnecke shortly after John F. Kennedy’s passing.

The pair came together less than six months after Warnecke was commissioned to design JFK’s grave, forming a connection during his tenure working under the former president in Washington.

Their relationship blossomed, leading to intimate moments captured in a 1963 photograph.

Scheduled for release, the book draws from 25 years of exhaustive research and interviews centered around America’s most renowned first lady.

Jackie stood by her husband’s side during his tragic assassination in 1963, already acquainted with Warnecke through his prior collaborations with JFK in Washington and Massachusetts.

Approximately a year after JFK’s burial at Arlington National Cemetery, Jackie invited Warnecke to her Cape Cod estate, where their initial encounter unfolded into a passionate liaison on her former marital bed.

Despite warnings from friends, including Bobby Kennedy, about the haste of her new relationship, Jackie continued to pursue her affections without hesitation.

In November 1964, Warnecke accompanied Jackie to the famed Kennedy compound in Hyannis, marking the start of their physical relationship.

The book vividly recounts their emotional entanglement, culminating in a proposal that never materialized due to financial concerns.

Despite the complexities of their bond, characterized by an emotional rollercoaster, Jackie and Warnecke maintained a passionate connection for several years.

The narrative portrays their intimate encounters in various settings until financial troubles led to the relationship’s abrupt end.

In the final days of her life, Jackie reached out to Warnecke amidst her battle with non-Hodgkin’s lymphoma in 1994.

They reminisced about their shared past, symbolized by the burning of old love letters and rekindling of memories.

This poignant reunion marked the conclusion of a chapter in Jackie’s tumultuous love life.

Warnecke’s account of his time with Jackie remained a well-guarded secret until his passing in 2010, with the forthcoming book shedding light on their previously undisclosed relationship.

Scheduled for publication on July 18, the book offers a captivating glimpse into the private life of one of America’s most enigmatic figures.