Khloé Kardashian Laughs About Kim and Kourtney's Book Full of Polaroids of Guys They Stood Up

"We'd see the poor guy, and we'd stand him up, and we'd take a polaroid," Kim Kardashian recalled of her teenage antics at Century City Mall with sister Kourtney Kardashian Barker

Kim Kardashian and Kourtney Kardashian Barker got in plenty of hijinks as teens!

On the latest episode of The Kardashians, Khloé Kardashian prepared to open the first Good American retail store at Century City Mall in Los Angeles. For Khloé, the store opening was an exciting business milestone — but its location also reminded her of some fond teenage memories involving her sisters.

"This mall has been around for years — you should ask Kourtney and Kim," Khloé, 39, told cameras. "They used to call 1-900 numbers and ask gentlemen to meet them here."

In a confessional, Kim, 42, admitted, "We would talk to these guys. We would be like, 15, and then they would be like, 'Okay, yeah, meet me at Blockbuster at the mall,' and we'd see the poor guy, and we'd stand him up, and we'd take a polaroid and we'd have a book of polaroids of these guys that we would stand up at the mall."

Related: Kourtney Kardashian Says Her 'Happiness Comes' When She Gets 'the F--- Away' from Her Family — 'Specifically' Sister Kim

Khloé insisted that Kourtney, 44, still remembered the number so Kim decided to put her sister's memory to the test. When Kourtney did, in fact, remember the phone number, the two decided to call the line together — while the cameras were rolling.

After calling a line that had a greeting about "where naughty meets nice," Kim pretended to be a random caller named Samantha and changed her voice to mask her identity.

"Kourtney, you talk!" she panicked, as Kourtney said, "I'm hanging up."

A man's voice was heard saying hello and on a whim, Kim responded, "Hi, this is Samantha."

"Hey, Samantha, my name's Chris," the man could be heard saying, adding that he lives in Ventura County. Kim held back her giggles and quickly said, "I stay in Ventura County."

She eventually couldn't hold back her laughter any longer and hung up the call. "I've gotta save that number in my phone," Kim quipped to producers.

Related: 'The Kardashians': Kourtney Sobs amid Endless Fight with Kim as She Says 'You're Just a Witch, and I Hate You'

While the two shared some laughs on the phone in this week's episode, last week's was a different story as their phone call ended in tears and a slew of angry words being thrown back and forth.

The tensions stemmed from Kim agreeing to do a Dolce & Gabbana partnership last season. Kourtney became upset that Kim did the collection with the fashion house that designed her wedding just six months after her big day, and their fight was never quite resolved with both failing to see the other's perspective.

At one point, Kourtney told Kim, "You’re talking about the bulls--- details cause it's all your egotistical, selfish mind can think about. You cannot stand someone else being the center of attention. You came to my wedding, you couldn’t be happy, you complained from the second you got there till the second you left… you couldn’t be happy for me, you couldn’t be happy that I was the center of attention."

Related: Kourtney Kardashian Says Kim's Dolce & Gabbana Show Copied Her Wedding: ‘She Sees It for the Dollar Signs’

Kim tried to reason and insisted, "I was so happy for you ... you have a serious vendetta. You hate us, you’re a different person, we all talk about it."

But Kourtney quickly shut her sister down.

"I don’t need you guys anymore, I don’t need to be a part of it," she said. "I have a happy life and that happiness comes when I get the f--- away from you guys. Specifically you."

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New episodes of The Kardashians drop every Thursday at 12 a.m. ET on Hulu.

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