A few weeks after the birth of Savanna in 1994, the supposed first daughter of Sylvester Stallone turned out not to be his, a paternity had proven.

An autobiography of Stallone’s ex-lover, Janice Dickinson reveals shocking details about their messy relationship. In the book titled “No Lifeguard On Duty” published in 2002, Janice admits sleeping with three men within a week.

Sylvester Stallone, now 74, who had been in a romantic relationship with Jennifer Flavin five years prior, called it off in a handwritten letter to be with Janice.

Though Stallone — her then-partner, film producer Michael Birnbaum or an unnamed artist could have been the father, she believed it was the actor.

According to her, she felt it was Stallone’s “in all honesty.”

She said: “Things hadn’t been going well with Michael for some time, and we split up later that week when I came clean about Stallone.

“But Sly didn’t call, as I had expected him to, and a week later I discovered I was pregnant.

Janice Dickinson and Savanna
Janice Dickinson and Savanna at Amazing Spiderman premiere

“I called Sly and went over to see him. We had supper and made love – he’d improved considerably since our brief debut. Then I told him I was pregnant.

“‘How do you know it’s not Michael Birnbaum’s?’ he asked.

“Well, I didn’t – in fact, it could even have been the artist’s – but in all honesty, deep down, I felt the child was Sly’s.”

Just six weeks after Savannah was born Janice was back on the catwalk for Versace and Stallone was in the audience.

But when she was walked down the runway she realised he had gone and she found him back at their hotel.

Janice wrote: “‘She’s not mine,’ he said. ‘I just heard from the DNA lab in Long Beach. Savannah’s not mine. Send my regards to Mr Birnbaum’ – and with that he stood up.

“And then he turned and walked out.”

Stallone reunited with Jennifer Flavin, now 51, in 1995.

Sylvester Stallone and family
Stallone and Jennifer Flavin in 2015 with their daughters Sophia, Sistine and Scarlet (Image: WireImage)

They were married in 1997 and share three daughters: Sophia, 24, Sistine, 22, and Scarlet, 18.

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