Khloe Kardashian's ex-boyfriend claims she faked their relationship for her reality show.

On an episode of E!'s Kourtney and Khloe Take Miami, Khloe, 25, and sister Kourtney, 30, claimed NBA star Rashad McCants cheated on Khloe after they hacked into his voice mail and listened to suggestive phone messages apparently left for him by a female fan.

But McCants, 25, tells the New York Post's Page Six that they "made the whole thing up" because they did not have his phone number.

What's more, he says he and Khloe "had already called it quits" in January, before the segment was even taped. (Reps for E! and Khloe did not return calls or e-mails for comment.)

Khloe has since moved on to another basketball player, Los Angeles Laker Lamar Odom, whom she wed in September after one month of dating.

Thank You!

You have successfully subscribed.

She has denied Internet rumors that it was a fake marriage.

"We're doing amazing," she recently told Usmagazine.com.

ncG1vNJzZmivp6x7tr%2FMmp6aspmjsm%2BvzqZmnJ2cmq%2BztdOyZKedp6h8r7HWrGanmpFiwLWt0WaapZmZosBut8elpp5lm5a%2Fpa3SoaCapl2owaKzxJ1kraCVnr9uvsSlmK2hn6PAqbXPZmlpaGlqfnJ7