Kourtney Kardashian Posts Sexy Bikini Shot, Casts Shade At Partying Scott Disick

Kourtney Kardashian exacted a measure of revenge and cast some serious shade on long-time beau Scott Disick Wednesday as she showed off her figure in a sexy bikini photograph.

The eldest sister of the Kardashian women, Kourtney flaunted her backside for the NSFW Instagram post, according to Us Weekly. Shown in a white two-piece bikini, Kourtney Kardashian looks relaxed as she allows her butt to hang from the railing while talking to her sister Kim Kardashian.

The caption Kourtney Kardashian used seemed to cast shade on her on-again, off-again partner Scott Disick. “I don’t think you ready for this jelly,” Kourtney Kardashian wrote under the picture, a caption purportedly aimed at the Scott Disick as he lives it up in Miami.

The friction between Kourtney Kardashian and Scott Disck started last week when the two — who were the Inquisitr reported were back together at the time — took a vacation to Costa Rica along with other members of the Keeping Up With The Kardashian reality TV show family. The show’s production crew followed the family for the vacation, filming for the upcoming season of the reality TV series.

During the vacation, Scott Disick went missing for more than a day when a worried Kourtney Kardashian began to inquire as to where the self-proclaimed Lord was, Us Weekly reported. Security for the Kardashian family pointed Kourtney in the direction of the production crew’s hotel where Scott Disick and a mystery woman he flew out to visit him were renting a room.

After a heated exchange with the Kardashian family, Scott Disick left the Costa Rica vacation a day early for Miami. Kourtney and the couple’s three children — Mason, seven, Penelope, four, and Reign, two — remained behind in what one source called a discouraged state.

“The family is deeply disappointed. Kourtney is not upset that he’s seeing other women. She’s upset he would disrupt the family vacation with the kids there and the whole family there and hide a girl in the hotel.”

Scott Disick has been partying heavily in Miami after abruptly leaving the Kardashian family vacation in Costa Rica last week. TMZ shared a questionable image of Scott Disick being straddled by model J Lynne while the two lounged in the pool Monday. The media outlet suggested the affair with J Lynne lasted only one day, but the images of Scott Disick and a bevy of beautiful women haven’t slowed down since the reality TV star left Costa Rica.

Us Weekly detailed more of the affair between Scott Disick and another mysterious blonde bombshell Tuesday. Almost tauntingly, Scott Disick lounged poolside with the beauty for several hours before heading to the beach according to an unnamed source.

“He wasn’t trying to hide it at all… They were sharing the same chaise lounge and smoking cigarettes. He had his arm around her, and she was resting her head on his chest. He was very affectionate with her, and they were playing footsie and wrapping their legs around each other.”

The same source told Us Weekly that the flings with both women were temporary and casual. “They met through friends,” according to the unnamed source. “It’s not anything serious.”

For Kourtney Kardashian, baring her backside is nothing new. During the trip to Costa Rica, the 37-year-old mother of three shared a SnapChat image of herself skinny-dipping in the pool where the family stayed, according to the Daily Mail.

Do you think that Kourtney Kardashian and Scott Disick are finally through with each other? Follow the Inquisitr on Twitter (@IQShowbiz) for more on this developing story.

[Featured Image by Dimitrios Kambouris/Getty Images]