TrueandChicagoare already best buddies!

The adorable cousins — 10 weeks and 5 months old, respectively — are as cute as can be in a photoKim Kardashian Westshared to Instagram Wednesday to wish sisterKhloé Kardashiana happy 34th birthday.

“Happy Birthday to one of my favorite souls on this planet!” Kardashian West, 37, captioned thesnapshot of herself and Kardashian, with their daughters situated atop the latter’s lap. “This year you have shown strength like none other. I admire you foralways following your heart.”

She continued, “I love seeing you as a mom and can’t wait for the years ahead. Let’s celebrate you today! I love you to infinity!”

Khloe Kardashian/Snapchat

https://www.snapchat.com/add/khloekardashianKhloe Kardashian/Snapchat

In aMarch update toher app and blog two weeks before welcoming True with NBA boyfriendTristan Thompson, Kardashian told fans she’ll probably be most like “Kimberly” when it comes to her parenting style.

The news came days after a source told PEOPLE that theRevenge Bodyhost hadbeen turning to Kardashian West for advice. (The KKW Beauty Mogul also shares sonSaint, 2½, and daughterNorth, 5, with husbandKanye West.)

“Khloé has really only been asking Kim for advice,” the insider said. “She agrees more with Kim’s parenting style than [Kourtney Kardashian]’s.”

Kristina Bumphrey/Starpix/REX/Shutterstock

NBC/Universal Upfront Presentation, New York, USA - 15 May 2017

RELATED VIDEO: Khloé Kardashian Shares New Photo of Daughter True After Stepping Out on Date Night with Tristan Thompson

Aftershe was spotted wearing a diamond ring on her ring fingerSunday night, Kardashian replied to a fan after they tweeted that they were “disappointed” in her for continuing her relationship with Thompson, 27, afterhe seemingly was caught cheatingon her just days before she gave birth.

TheKeeping Up with the Kardashiansstar was quick to set the record straight, revealing just how tough it was to continue to be with the father of her child.

“Not exactly Queen Persia, you have no knowledge of what goes on in our household or the enormousrebuilding this takes to even coexist. I’m proud of my strength,” she tweeted. “I appreciate your opinion and I hope you hold that same opinion to everyone else who has stayed in situations.”

source: people.com