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Kanye West probably described his wife's career more succinctly than we can in his song "Clique": "My girl a superstar all from a home movie."

According to "Kardashian Dynasty," a new tell-all book written by Ian Halperin, that "home movie," which was actually an explicit sex tape starring Kim Kardashian and her then boyfriend Ray-J, wasn't stolen and leaked to the public.

Instead, the book alleges Kris Jenner and Kim intentionally released the footage in order to make Kim famous.

Halperin quotes a source in the "adult film industry" who said, "A mutual friend of Kim and Paris [Hilton] had advised her that if she wanted to achieve fame, a sex tape would be the way to go . . . Kim had discussed the idea of producing a tape with her family beforehand."

The author also interviewed a "former friend" of Kim's who said, "It was Kris who engineered the deal behind the scenes and was responsible for the tape seeing the light of day."

Halperin even went so far as to go under cover as a porn peddler in order to land an interview with an insider at Vivid Entertainment, the company that officially released Kim and Ray J's sex tape in 2007. The insider said, "When it comes to . . . selling a sex tape, both parties need to sign off."

When asked how Kim's sex tape got out, the rep explained, "A third party brought it to Vivid . . . [We] got in touch with the Kardashian family." She said they usually explain that it is likely a tape would leak anyway, and the celebrity wouldn't get paid, "So why not work for us, and we'll make sure that it will not only get out, but that it will be distributed the way you want."

The rep says she told the family, "You'll get a nice payment for it." She then added, "I can tell you right now, Kim Kardashian's [has] made millions."

Kim threatened to sue Vivid and was paid a reported $5 million settlement, but the tape was still released.

"Kardashian Dynasty" is scheduled to be come out on April 19. A rep for Kim Kardashian West maintains, "All the assertions are false."