Scott Disick just hasn’t learned.

Just weeks after it was revealed that Kourtney Kardashian was reconciling with the father of his three children, Scott proved that old habits die hard when he snuck a much younger model on the Kardashian’s Costa Rican vacation!

MUST SEE: Kourtney Kardashian Goes Skinnydipping, Shares Naked Snap!

“Scott’s been hooking up with a young model… He actually flew her to Costa Rica and tried to hide her in his hotel room without the Kardashians knowing,” a source tells In Touch exclusively.

Eventually, he was busted by the Keeping Up With the Kardashians camera crew, who promptly intervened.

https://www.instagram.com/p/BNtDpZLhZOH/

“They went to get him in his room and saw [the model] standing there. Scott immediately panicked and tried to get them out, but it was too late,” the source says, adding that they then told Kris Jenner. “The crew took down [the model’s] info, made her sign a non-disclosure agreement, and then put her on the first flight home. It’s safe to say that Kris’ plan to get Kourtney and Scott back together was an epic failure.”

Shortly after the incident, Scott was caught kissing model Jessica Harris — known professionally as J Lynne — while partying in Miami.

https://www.instagram.com/p/BGF1f1LHiIF/

Scott was previously uninvited from the Costa Rica trip and found himself “in the doghouse” after Kourt caught him flirting with a “pretty brunette” at the Sundance Film Festival’s annual TAO pop-up.

MORE: Khloé Kardashian, Kris Jenner, and More Stars With Sex Stories Too Crazy to Be True

This is hardly the first time the pair have called it quits. The two broke up after 9 years and three kids together back in July 2015 when he was caught getting close with his ex-girlfriend Chloé Bartoli.

For more on this, pick up the latest issue of In Touch — and for more exclusive content sign up for our newsletter!

duggars in touch

Take a look back at Scott and Kourtney’s cutest family pics!