Justin Bieber & Kourtney Kardashian Lock Lips In Hot Date: Steamy Snapchat Denies Baby Rumor As Scott Disick Reacts

Justin Bieber and Kourtney Kardashian reunited once more? It’s been months since the pop star, then 21, and Kourtney, star of Keeping Up With The Kardashians and, at 36, a mom of three, had their first hot hookup. But apparently the fire is still alive, because once again the Biebs is locking lips with Kardashian amid another steamy date, according to a source cited by Hollywood Life.

The revelation of another hookup comes just after Kourtney publicized the fact that yup, she’s a Belieber.

After the pop idol, who recently turned 22, got the crowd rocking at one of his concerts, Kourtney was the woman he chose with whom to wind up the night. The couple got together following his show and had a very intimate hook-up, making out passionately, according to the source.

Their romantic evening began with a party that included both Kanye West and Kim Kardashian. But when it was time for Kourtney to head off with the other Keeping Up With The Kardashians family members, she hesitated and that’s when the PDA began, revealed the source.

“When Kourtney was ready to leave with her sister and Kanye, she and Justin shared a long embrace — he said he didn’t want her to go. He started to kiss her neck and then a handler held up his jacket to cover them as they started making out. Justin was biting her lip.”

And although that’s the only public display that Kardashian had when it comes to her hook-up with Bieber, Kourtney hasn’t been holding back on Snapchat, noted Life & Style.

Credit goes to Kylie Jenner, the reigning queen of Snapchat, who appears to have offered Kourtney some tips on how to heat up Snapchat with steamy snaps. As Kardashian unveiled racy pics in lingerie within her oversized closet, she also revealed videos from behind the scenes. With a “grand finale” image sealing the deal, Kourtney gave kudos to Kylie.

“I feel like Kylie today,” proclaimed Kourtney proudly.

With Kardashian continuing to keep her hook-up with Justin away from the spotlight, some are doubting its existence. But the the romance between Kardashian and the Biebs is very much alive, a source told Radar Online.

The hookup began soon after Kourtney split from baby daddy Scott Disick. And there’s a reason why the lovebirds have sought to keep their cooing out of the public spotlight.

“Kourtney made it clear she needs this to be discreet for the sake of her kids as well as the complicated situation that’s going on with Scott,” revealed the source.

Kardashian and Justin not only partied in Los Angeles: Kourtney also was seen attempting to exit his hotel suite at 4 a.m. without being noticed. But it doesn’t bother the Biebs that she doesn’t want anyone to know about their affair.

“That suits Biebs just fine,” shared the insider. “He says Kourtney’s the best lover he’s ever had and he can’t stay away from her.”

As for the rumors that Kardashian is pregnant with a Biebs baby? Kourtney is not blossoming with a baby bump, sources told Gossip Cop.

One source pointed to Kardashian’s fab abs on Instagram as evidence that she’s not pregnant.

“Have you seen her body recently?!” demanded that insider.

Kourtney’s rep as well as a source close to Justin also scoffed at the report.

As for how Disick feels about Kardashian and her new hook-up, he hasn’t directly attacked Kourtney’s hook-up with Justin. However, he did recently call an Australian radio show to dish on Kardashian, reported People.

“She’s like my best friend,” said the 32-year-old about Kourtney. “I’ll love her ’til the day I die.”

The former couple even showed their comfort level by teasing fans regarding the possibility of “getting back together” in a Snapchat joke.

But although that was humor, they’ve remained serious about their goal of co-parenting their offspring. Mason is 6, Penelope is 3, and Reign is 1.

If Kardashian were to get pregnant with a Biebs baby, her ex would be devastated, an insider told Hollywood Life.

“That would really knock Scott out like a Mike Tyson punch,” said the insider of the pregnancy rumor. “If [Kourtney] truly wanted to hurt him, that would be how.”

And when it comes to long-term goals, Kardashian is using her ex as a bad example to motivate herself to go back to school, a source told Radar.

“[Kourtney] doesn’t want to rely on the family’s cash for her livelihood and, unlike her ex, she wants to stand on her own two feet and raise their three kids with a good role model mom,” explained the source.

Consequently, Kardashian is planning on attaining a masters degree in Spanish and completing an online law degree. Her ultimate goal: Leave the public spotlight.

Is that so she can enjoy hook-ups with the Biebs without worrying about who Beliebs?

[Photo by Frazer Harrison/Getty Images]