Kourtney and Khloe Kardashian are working hard for their performance and they are busy in proving that their hard work will prove their capabilities through their midriff-baring selfie. Both the sisters have shared their instagram picture on Saturday. She showed their bulging tummies, when they wore the all black workout gear in similar style.

Khloe gave the caption of the mirror selfie that Gym selfie with MILF and Kourtney reposted the picture with the writing as Double gym selfie. Khloe opened up about the weight loss journey and she admitted that it was not her overnight transformation. The reality star also revealed on Live with Kelly a

nd Michael that it…