ELVIS WRECKED PRISCILLA FLING WITH REALITY DAD

He'd call when ex was havin sex with Bob

- 

FOLLOWING her split from Elvis, gorgeous Priscilla Presley fell madly in love with lawyer Robert Kardashian — who would later father reality show queens with Kris Jenner — and they plunged into a steamy affair that was wrecked by the controlling rocker.

That’s the bombshell dropped by the late legal eagle’s older brother Tom in Jerry Oppenheimer’s sizzling book, The Kardashians: An American Drama.