Kourtney Kardashian has reportedly hired a private investigator to follow her longtime boyfriend, Scott Disick.

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Following an episode of Keeping Up With The Kardashians in which Disick was seen making a few "shady" (according to Khloe Kardashian) business deals, a source claims the reality star is being tracked.

“If Scott even just goes to lunch, someone’s tailing him,” a source told Life & Style on Wednesday. “Kourt knows he can’t be trusted and she’s not about to let him take their precious kids without a watchful eye around.”

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On Sunday night's episode of Keeping Up With The Kardashians, Disick's business dealings were spotlighted. While Kourtney didn't seem to care what her partner was up to at the time, her sister, Khloe, wondered how Disick was making a living off selling cars, when there didn't seem to be much room for profit. Kris Jenner also questioned what exactly it was that the reality star did for a living.

“Scott knows he’s being followed and tries to ditch his tails,” the source alleged. “When he’s by himself, he’ll turn down a block, jump into an Uber car and lose them.”

For more of Kourtney and Disick, tune into Keeping Up With The Kardashians on Sunday nights at 9 p.m. on E!