Out of all her sisters, Khloe Kardashian has grown closer to the baby of the bunch, Kylie Jenner.  The two siblings were pregnant around the same time, which made their bond even stronger.

Even though Kylie welcomed her daughter on Feb. 1, the beauty mogul has still been a constant support system for her big sister.

Kylie Continues To Support Khloe 

Khloe and Kylie were three months apart pregnant. Now that Kylie is embracing her role as a new mom, she has been giving Khloe all the tips she needs to help ease her transition into motherhood.

"On the surface, Khloe always comes across as the cool, confident sister, but deep down she's just as nervous and scared as any first-time mom-to-be," a source close to the family stated.

Though Khoe is 13 years older than Kylie, Kylie is very mature for her age and has been "the voice of reason" for Khloe, who is nervous about having her first child. 

"Kylie and Khloe have become surprisingly close during the past few months, and they've really been bonding -- it's really lovely. Whenever Khloe suffers a wobble or suffers a freakout she's been calling Kylie who has a real knack for talking her down from the ledge," the source cotinued.

DOLL MATTE LIP .. launching in the new Koko Kollection Kit 5/31 A post shared by Kylie (@kyliejenner) on May 25, 2017 at 4:27pm PDT 
In addition to her baby sister, Khloe has had the support of her elder sisters, Kim Kardashian and Kourtney Kardashian, and their mom, Kris Jenner, who also have been doing their best to put Khloe at ease.
The Revenge Body host has been very vocal in the past about struggles with infertility and longing to have a child. While she was married to her first husband, NBA player Lamar Odom, Khloe was diagnosed with endometriosis, which made having children more difficult. Kardashian officially divorced Odom in 2016.
Khloe began dating Cleveland Cavaliers player Tristan Thompson in 2016. The couple officially announced in December 2017 that they were expecting.
Thompson and Kardashian's relationship received harsh criticism due to Thompson ending his relationship with his ex-girlfriend, Jordan Craig, while she was till pregnant with their son, Prince Thompson. Thompson also allegedly received backlash from his teammates for his relationship with Kardashian due to the unwanted media attention the team would get during their practices.