Well we already knew she had no shame -- but Kourtney Kardashian proved it again.

The 36-year-old mom of three gave her millions of followers a lookyloo and her bottom when she Instagramed a photo of her derriere on Wednesday. We have a feeling the shameless pic was Kourtney's way of teasing Justin Bieber, whom she's reportedly been knocking boots with for four months.

The racy snap, which was photographed by Brian Bowen Smith, shows the reality star facing a wall as her brunette hair falls down over her back -- but they aren't long enough to hide that round rump.

We aren't really sure why Kourt felt the need to post old photos out of the blue, but perhaps Kourt felt insecure about showing off her not-so taut tum earlier in the day while taking her daughter and Nori to ballet class and wanted to highlight some of her better assets.

Yikes! Crop tops aren't for everyone!

Over the summer, Scott Disick's estranged ex said she swears by trainer Don Brooks' workout regime. "We train anywhere from three to five days a week depending on what projects are coming up. [Our workouts last] anywhere from 45 minutes up to an hour," said Kourtney.

Maybe you guys need to focus a bit more on some problem regions?

Beyonce and Lindsay Lohan know how this feels!

Iggy Azalea is the latest celeb being accused of photoshopping her Instagram photos, and the speculation reached a fever pitch over this photo she posted of herself and fiancé Nick Young. Almost immediately, fans began to comment how fake her face looked and accused her of tinkering with the images, but if they had been paying attention, they would know that she's been paying visits to Kylie Jenner's doctor!

Last week, the blonde rapper shared a photo with Dr. Simon Ourian, who is the man responsible for Kylie's more natural looking lip injections and fillers. The "Fancy" songstress couldn't hold back on heaping on the praise for the medical professional, either!

"My skin angel aka Dr Ourian! To say this guy has completely changed my complexion would NOT be an understatement. Thank you a million times @simonourianMd1," she wrote.

See people... she's not Photoshopping, she's just getting the Kardashian treatment!

My skin angel aka Dr Ourian! To say this guy has completely changed my complexion would NOT be an understatement. Thankyou a million times @simonourianMd1

A photo posted by Iggy Azalea (@thenewclassic) on Dec 8, 2015 at 10:56pm PST

After being joined at the hip for so long with her girlfriend Alicia Cargile, it's so weird to see Kristen Stewart rolling solo! And remember back when she used to date Rob Pattinson? Those were the days...

On Wednesday evening K. Stew touched down at Los Angeles International Airport, and she kept her head down and avoided questions from photographers. The starlet wore her trademark skinnies and a leather jacket, and she kept her brunette locks tied up. We can't tell if her hair is clean or not, but given how many times we've seen her with a greasy mop, that's probably for the best!

But speaking of Rob, earlier this year the website NaughtyGossip reported that Pattinson and Stewart “look like they might finally get back together on screen.” Oh really? “Both have had little to no career success since they split," a source tells the site, which frankly, we've never even heard of. "Now agents for both of them are looking for a project for them to star in together.”

Well, the success thing seems true, anyway!

Kylie Jenner lunched at Le Pain Quotidien with some girlfriends on Wednesday, and after flaunting her abs in a casual black getup, she headed to XIV Karats and Barneys New York to do some holiday shopping. Given how much she loves pricey stuff, we have a feeling she was making some purchases for herself as well.

While Kylie and older sis Kendall are closer now than when they were younger, Kendall recently revealed that Kylie nearly ruined her first kiss. Typical. On her new app, Kendall went into details about a game of truth or dare that took place in middle school with her crush.

"Of course, the point of that was to kiss each other," Kendall explained. "Kylie was so nosy, so we kept going to secret places like the trampoline — and Kylie kept spying and, like, popping out of trees, lol. We were like, 'Go away!' and she was like, 'What are you doing?!?' She followed us to the living room, then the bedroom. We even locked her out with a chair under the doorknob and she found her way in. So annoying. She kept saying, 'You're being shady!'"

Oh, how she's matured.

WTF did Kesha do to her face?! She seriously looks like a long lost Olsen sibling!

On Wednesday the 28-year-old singer jetted out of Los Angeles International Airport in a flowy white dress, but no one was paying attention to her oddball outfit. Back in September a source revealed to X17online that Kesha had gotten injections in her butt cheeks to make her rump fuller, and now it looks like she had something injected into her face as well.

“Kesha wanted to feel better about herself," our source told us earlier this year. "She had her boobs done years ago but this was the remaining thing that was bugging her — she thought her butt was too flat so she just had a little work done.”

Just don't go overboard K Money!

Pink nails, pink shoes, pink tights, pink leotard, pink necklace and a fuzzy pink coat! Nori's just so cute we could eat her up!

Kim Kardashian's adorable ballerina North West was pretty in furry pink as she headed to ballet class on Wednesday. The toddler was escorted by her nanny aunt Kourtney Kardashian, who brought along daughter Penelope to the dance class too.

It's good to see that Kourt can take a break from her rumored romp with Justin Bieber and take the little darlings to their class. What a great mom of three!

Kimbo obviously thought Nori looked as cute as we do -- the proud mama Instagramed a sweet snap of her tiny dancer. Aww!

My little ballerina

A photo posted by Kim Kardashian West (@kimkardashian) on Dec 16, 2015 at 10:05am PST

The fact that we even have to question this is pretty gross!

Kendall Jenner swung by to pick up a friend in her vintage 1957 Corvette Stingray today in LA, and the model was none too pleased when our videographer asked about Justin Bieber! Specifically, she didn't like when he asked whether The Biebs was having his way with her or her sister Kourtney!

Why would we ask such a question? Because the people want to know! Way back when they first became friends, rumors swirled that JB and Kenny had a fling, and now it's being reported that he has been secretly doing the bone dance with Kourt for the past four months!

Just last night, the supermodel partied with the "Sorry" crooner at The Nice Guy in West Hollywood, which coincidentally is the same place he was spotted with the eldest K sister over the weekend, so we gotta wonder...

Will he ever learn?!

Scott Disick has fallen off the wagon just weeks after leaving rehab, In Touch reports. The father-of-three was allegedly drinking at a house party in the Hollywood Hills on December 6, and it was more than just a casual cocktail.

"He was drinking until 4 a.m. He was a total mess. At one point, he even pushed his crotch into a girl’s face," a source dished to the mag. "He’s been hiding his drinking from Kourtney," the source added.

Kylie Jenner's jilted boyfriend Tyga isn't helping matters, either! While the rest of the Kardashian clan was gathered at the hospital for Saint West's birth, the rapper and The Lord were hitting the town together. "Tyga has been wanting to blow off steam and keeps inviting Scott to hang out," the insider dished.

LD has struggled with addiction issues for years, and it appears the bad boy reality star might be throwing in the towel on cleaning up his act. "He’s out of control again. It’s like Scott’s given up," a source close to the situation explained.

Take a look at this pic of Scotty partying with French Montana and A$AP Rocky the other night... it doesn't exactly look like a sober scene!