Finally, Two Sisters Met in the Gym: Kylie Jenner Joined Kourtney Kardashian

Kourtney Kardashian mastered Kylie Jenner in joining the gym this Saturday. Though, getting the mogul to a yoga mat was a real challenge.

Kylie shared an image of her and Kourtney at the weekend. She captioned it saying that her svelte older sibling has been working hard.

The 18-year-old star put on a gray and lime sports bra and leggings. She also wore white sneakers. Meanwhile, Kardashian was clad in cut-out crop-top and black leggings.

Kardashian reveals in the caption of her own picture that she has been trying to recruit her sister to join her for half a year. Saturday became her lucky day.

According to PEOPLE, the singer, 21, has had an enormous ego boost after hooking up with her sister.