Khloe Kardashian Weight Gain: Reality Star Blames Kourtney For Added Pounds [Video]

Khloe Kardashian is blaming her recent weight gain on her stint in The Hamptons with sister Kourtney.

Khloe Kardashian's Weight Loss Plan

While filming the latest Keeping Up With The Kardashians spinoff, Kourtney & Khloe Take The Hamptons, Khloe put on a reported 10 pounds -- and she's blaming it all on her pregnant sister, Kourtney.

“Monday with @gunnarfitness!!! I am determined to get my pre-hamptons, pre-sympathy kourtney pregnancy weight off. Nothing good comes easy,” Khloe wrote on Instagram this week, along with her latest gym selfie.

Khloe Kardashian No Longer Gets Offended By Pregnancy Rumors

Earlier this month, Khloe first spoke of her recent weight gain, telling fans on Twitter she gained around 10 pounds -- or even more. At the time, Khloe insisted she has since gotten back on track and noted that the added pounds were the result of her "slacking" for a few months in The Hamptons.

According to an OK! Magazine source, Khloe lost a reported 30 pounds after her nasty split from husband Lamar Odom. In the April 2014 report, the source claimed Khloe was so distraught over the split she lost her appetite completely and the pounds began falling off.

After going from 170 pounds to 140 pounds, Khloe began working out seven days a week and eating less.

“She’ll drink black coffee and water all morning," the source said of Khloe's diet plan at the time. "When she finally eats she’ll have a big salad with chicken or fish. She makes lunch her biggest meal.”