Khloe Kardashian Dubs Kourtney a 'MILF' in Ab-Tastic Gym Selfie

Kourney and Khloe Kardashian are proving that hard work definitely pays off in their latest midriff-baring selfie.

The sisters shared an ab-solutely fierce Instagram snap on Saturday, revealing their toned tummies while donning similar all-black workout gear.


"Gym selfie with the MILF," Khloe captioned the mirror selfie. Kourtney later reposted the same pic writing, "Double gym selfie."

"For me, it's about lifestyle changes," the 31-year-old reality star revealed on Live! with Kelly and Michael last week. "I dieted forever -- I'm a yo-yo dieter, yo-yo weight gainer -- and I was like, 'Ok, I need to make a change.'"

"It's not about losing 30 pounds in 30 days -- that's unrealistic," she continued. "So, I started making lifestyle changes and working out often. I started slow. It's been about three years, and I've kept the weight off."