Khloe Kardashian Jokingly Blames Pregnant Sister Kourtney For Her Weight Gain

Single and ready to shed those pounds! Khloe Kardashian, who Us Weekly recently revealed is on a break from boyfriend French Montana, took to Instagram on Monday, Sept. 15, to blame her pregnant sister Kourtney Kardashian for her weight gain.

"Monday with @gunnarfitness!!!" the reality star, sporting cornrows and dressed head-to-toe in Nike, captioned a mirror selfie at the gym. "I am determined to get my pre-hamptons, pre- sympathy kourtney pregnancy weight off," she jokingly added. "Nothing good comes easy. Why do I blame Kourt though?!? Lol."

Lamar Odom's ex, who is taking a break from rapper Montana after he was acting too "needy," also took to social media to blame her BFF Malika for slacking on her diet. "I had to do something in the gym today. I ate so poorly yesterday. I blame @theforevermalika lol," she tweeted on Sunday, Sept. 14.

The Kardashian sister previously told her followers she went a bit overboard while filming E! spin-off Kourtney & Khloe Take The Hamptons over the summer. "Started working out again this week after slacking for a few months while taping in the Hamptons," she tweeted on Sept. 4. "I def gained about 10 lbs or even more. Oye! Focused now."

Sign up now for the Us Weekly newsletter to get breaking celebrity news, hot pics and more delivered straight to your inbox!

Want stories like these delivered straight to your phone? Download the Us Weekly iPhone app now!