Steve Jobs asked his first girlfriend to "make tantric love with him in his garden shed" after returning from a transformational visit to India in the 1970s, she has claimed.
Chrisann Brennan said in a new memoir that she enjoyed "profound" nights of passion with the late Apple founder during a relationship after they met at school in California.
However after a trip to India in 1974, he developed a sexist attitude and "started to reject the feminine aspect as inferior to the glorious masculine", she wrote.
"It all broke open between us when he asked if I would make tantric love with him in his garden shed," said Ms Brennan. She felt neither was spiritually prepared and "the only word I had was an emphatic 'no'".
In 'The Bite In The Apple', Ms Brennan, now a graphic designer living in Monterey, California, sheds new light on the life of the visionary billionaire who died from cancer in 2011 at the age of 56.
Before his rise to international acclaim the couple "shared nights of lovemaking so profound that, astonishingly, some fifteen years later, he called me out of the blue to thank me," she claimed.
However, she added that Jobs was so concerned about saving his "energy for work" and "conserving one's vital energies" that he typically preferred not to climax.
He also encouraged her to engage in "primal screams" of "Mommy, Daddy, Mommy, Daddy" after they took the psychedelic drug LSD together, she wrote.
Brennan and Jobs were living together when he co-founded Apple from a garage in California.
However "as Apple grew, so did Steve's sense of self-entitlement; in parallel they both seemed to take on lives of their own," she wrote in her memoir.
He eventually ended the on-off five-year relationship when Brennan became pregnant with a daughter, Lisa, whose paternity he long denied.
After he acknowledged paternity years later, he forged a close relationship with his daughter and she lived with him as a teenager. He paid for her to attend Harvard university and she is now a magazine writer.
Jobs, who left an estimated fortune of $8 billion (£4.95 billion), married Laurene Powell in 1991. The couple had three children together.