Kim Kardashian baby
Kim Kardashian is apparently crushed by fans reaction to her bikini pictures Reuters

Kim Kardashian is reportedly jealous of Kourtney Kardashian's slender figure. Kanye West's wife apparently wants to get back into shape.

In April, unairbrushed photos of her butt hit the Internet, during a vacation in Mexico with a group of female friends. The reality star had lost 100,000 followers on Instagram following the incident.

A source told Hollywood Life: "Kim's extremely jealous of Kourtney's bikini body, don't get me wrong she's proud of her, but she still can't help feel like she's losing some sort of competition."

"She and Kourtney have always been this way. When they were kids they would compete over every little thing and not much has changed," the insider added. "Kim is still struggling with what happened on their girls trip, the body shaming she got was horrific and she still hasn't totally recovered."

"She's trying to use this as motivation. She's back training hard with Gunnar and she's still workout of with Don too. She's very motivated, she wants to get in better shape than Kourtney," the source continued.

Meanwhile, the 36-year-old selfie queen had jokingly accused her hairstylist Jen Atkin of spiking her drink and "fat shaming" her during the holiday. She tweeted: "@jenatkinhair spiked my Oreo shake to try to get me to not eat it because she's fat shaming me"