During Wednesday night's episode of Married at First Sight: Afterparty, Katina watched back a Season 14 clip of Olajuwon telling the cast while sailing on a catamaran in Puerto Rico he had slept with a mother and her daughter when he was living the single life.
"Have you ever slept with somebody in the same family?" Olajuwon asks his co-stars in the clip during a shocking game of "Never Have I Ever."
He adds, "I messed with her mom and her daughter."
MAFS star Noi Phommasak proceeds to make a disgusted face and notes, "That's weird."
On Afterparty, host Keshia Knight Pulliam asked Katina to call her husband on the phone so they could get some "details of this story."
Olajuwon answered the phone and spilled the tea about his jaw-dropping past.
"How did that happen?" Keshia asked of Olajuwon's family affair.
"Yeah, I can tell you," Olajuwon replied. "Back in the day, my cousin was dating this guy and he disrespected my cousin, and they broke up."
"So one day I was walking down the street with my cousin and I seen the mother of the son and he told me that the mother likes to act young. So I told the mom, 'You look beautiful. You should let me take you out some time,'" Olajuwon shared.
"And then the mom got a hotel and she gave me a sex education class."
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This was clearly news to Katina as well, who appeared totally stunned.
"So how did you then get to the daughter?" Keshia probed, looking for answers.
"I'd say a month later, the daughter was sleeping over my cousin's house and she knew that I was going to be there," Olajuwon recalled.
Olajuwon said as the night "got late," he made a move.
"I gave her sex [education] the same way the mother gave my sex ed," Olajuwon revealed.
Keshia questioned whether Olajuwon taught the daughter the same things her mother had taught him.
"Absolutely," Olajuwon replied.
Katina laughed and then Olajuwon continued, "Two months from the mom and a month from the daughter, the mother reaches out to me and says, 'Hey, can you pick me up?' She doesn't drive. So when I pulled up to the train station, she didn't tell me the daughter was with her."
Olajuwon added how both women got into his car and he attempted to "narrate the conversation."
"But I ran out of words to talk about, so I just stayed quiet and then they started talking and laughing. And they both patted me on the shoulder when they got out of the car," Olajuwon told Keshia.
"They told me that I passed the class!"
Keshia, Katina and the other Afterparty guests, Steve Moy and Lindsey Georgoulis cracked up after hearing the full story.
Although Lindsey and Olajuwon fought during their honeymoons in San Juan on the show, Lindsey blurted out, "This is why Olajuwon is my favorite!" So the pair clearly buried the hatchet at some point.
"That story was everything. Thank you for clarifying," Keshia concluded with a laugh.
Olajuwon joked about how he was happy to help the community, and then Steve said a university should be opened in his pal's honor.
"I like him more now!" Lindsey said.
When Keshia asked Katina to comment on the whole ordeal, Katina said she needed to drink, and so she took a sip of her cocktail.
On Married at First Sight's fourteenth season, which currently airs on Wednesday nights at 8PM ET/PT, Katina didn't seem bothered by Olajuwon's wild and reckless past in which he had told women his name was "Isaac" and apparently partied and slept around without a care in the world.
Katina -- who also left behind a past of partying and late nights going into Married at First Sight -- remained focus on the present and how Olajuwon continued to insist she was his "queen" and he'd always be loyal to her.
Olajuwon also assured Katina that he only needed one woman for the rest of his life and he'd love that person to be her.
The latest episode ofMarried at First Sight concluded with Olajuwon surprising Katina with rose petals and candles in their San Juan hotel room, and Katina cried about how wonderful Olajuwon was treating her.
Katina determined that she and Olajuwon were meant to be and she was already "falling in love."
"This is everything I dreamed of," Katina cried after Olajuwon rubbed her feet. "I wish every woman could feel what I'm feeling right now. I just feel happy. I'm not in love yet, but this definitely helps!"