Hell hath no fury like a Kardashian woman scorned!

On the May 7 episode of Keeping Up With the Kardashians, Scott Disick found himself in deep horse s–t after sneakily inviting a woman on the family's vacation to Costa Rica.

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The 33-year-old's baby mama, Kourtney Kardashian, was shocked to hear that a mystery woman named Chelsea had attempted to get past security. “Scott and I are living our open lives but we’re here with our kids and here to be a family so I can’t even understand why he would think to invite someone. It’s hurtful and disrespectful," the 38-year-old told the camera.

The uncomfortable exchange came just weeks after the father-of-three was caught hiding a woman in his room during a trip to Dubai with Kim Kardashian. Needless to say, Kourt's siblings were appalled by his behavior.

“You can’t last four days without getting your d–k wet?” Khloé asked, before Kim threw a glass of water at him.

MORE: See Kim, Kylie, and the Rest of the Kardashian Family's First Instagram Selfies!

When momager Kris Jenner asked Kourtney if she was okay, the brunette beauty made her feelings about the situation clear. "I’m just thinking about all the guys I’m going to f–k when I get home… My kids deserve to have somebody with better moral characteristics."

The oldest Kardashian has since moved on with 23-year-old model Younes Bendjima, and this isn't the first time that the pair has been linked. "Kourtney has always had a thing for boy toys, and Younes is just her type,” a friend told Life & Style back in February.

kourtney kardashian younes bendjima splash

The duo was initially spotted leaving a hotel together in December, and sources claimed the former boxer quietly began pursuing the reality star. "There's a real chemistry between them," an insider said at the time.

Meanwhile, Scott has been linked to 21-year-old model Ella Ross.

Scroll through the gallery below to see photos of Kourtney and Scott with their kids!