Kourtney Kardashian's Sister Khloe Blames Her for Her Weight Gain - Find Out Why!

Kourtney Kardashian shows off her growing baby bump in her workout gear while filling up her tank at a local gas station on Monday (September 15) in Los Angeles.

That same day, the 35-year-old pregnant reality star’s sister Khloe took to her Twitter account to joke about how Kourtney is the one to blame for her weight gain.

PHOTOS: Check out the latest pics of Kourtney Kardashian

“Monday with @gunnarfitness!!! I am determined to get my pre-hamptons, pre- sympathy Kourtney pregnancy weight off,” Khloe tweeted. “Nothing good comes easy. Why do I blame Kourt though?!? Lol.”

FYI: Kourtney is wearing a Dailylook tank top.

10+ pictures inside of Kourtney Kardashian at a gas station…