Justin Bieber & Kourtney Kardashian Joke About ‘Mini Bieber’ Baby Amid Pregnancy Rumors

Justin Bieber and Kourtney Kardashian reportedly have joked about having a “mini Bieber” baby together. But has that joke turned into reality for the Keeping Up With Kardashians star, 37, and pop star, 22? That’s what an insider told Life & Style, which reports that Justin would “love” to have a baby with Kourtney.

Kardashian is expecting her fourth baby, according to Life & Style. But when it comes to the baby daddy, it could be Scott Disick, who fathered her flock of three, or it could be Bieber, who the source claims wants to become a daddy.

“Justin would love to have a child with her. They even used to joke about co-parenting a mini Bieber.”

But while Justin is relaxed, Disick is angry and reportedly upset that Kardashian recently reunited with the musical superstar.

“Scott was pissed and kept questioning why she ran to see him,” revealed the insider. “Kourtney had been telling everyone Justin was ‘just a hookup’ and ‘too young to take seriously.'”

A paternity test would solve the mystery, but that is a step Kardashian is resisting.

“A paternity test is the only answer at this point, but it’s the last thing in the world [Kourtney] wants to do,” added the source.

Hollywood Life points out that Kardashian has been candid about her desire to have a large family, but for the first time, she is not naming the baby daddy, citing a source who revealed that not even her sisters know whether it is Disick, 33, or Bieber, 22.

“At first, everyone just assumed it was Scott’s since he’s been trying to make things work, but then out of the blue, she jets off to spend time with Justin,” pointed out the source. “Her close friends and even her sisters aren’t sure anymore!”

Adding to the signs that Kardashian and Bieber have been continuing hooking up, the two reunited during the Fourth of July holiday weekend. They were seen partying together at Story nightclub in Miami beach.

Where was Scott while Kourtney was flirting with Justin in Miami? Disick was with the rest of the Keeping Up with the Kardashians clan.

The Kardashian and Jenner family members have remained friendly with Scott, although it’s been about a year since Kourtney broke up with Disick. She then began going out more on the town, while Scott sought to focus on staying sober and his children.

However, although Disick has attempted to earn Kardashian’s trust, she is not prepared to rekindle their romance. That made the sight of her renewed romance with Justin even more difficult for Scott.

Disick threw shade at Kourtney recently about her relationship with Bieber, reported Radar Online. And the Keeping Up with the Kardashians cameras captured the scene.

The diss from Scott occurred when a group, including friends and family members, were playing a sexy game of Cards Against Humanity. Kardashian was faced with a question.

“Why am I sticky?” was the query.

Kourtney read through the answers, which included “fleshlight,” “your weird brother,” and “still being a virgin.” But then came the bombshell.

“Justin Bieber,” read a shocked Kardashian.

Scott confessed that he had put in that answer to diss his ex-girlfriend.

“I put that one!” admitted Disick.

As for just how serious the relationship between Kourtney and Justin has become, an insider told Radar Online that Bieber appreciates their friendship as well as their affair.

“He says Kourtney is the best lover he’s ever had and he can’t stay away from her,” revealed the insider. “He loves having an older, experienced lover and they have a great friendship connection, too, so it works for both of them.”

As for the Bieber baby bump report, however, Gossip Cop is debunking it, with a Kardashian insider insisting that Kourtney is not pregnant.

[Photo by Joel Ryan/Invision/AP Images]