Kim, Kourtney and Khloe Kardashian couldn't help but feel proud for their stepfather, Bruce Jenner.
On Friday, Jenner sat down for a two-hour special interview with Diane Sawyer where he revealed details about his ongoing gender transition.
Thousands of celebrities, advocates and audiences expressed their support for the Kardashian-Jenner patriarch following the interview.
However, it was the messages of support from Jenner's immediate family that meant the most to him.
Kim Kardashian, Jenner's stepdaughter from his previous marriage to Kris Jenner, posted two photos of the two of them looking happy as ever.
In the first photo, Kim and Jenner were photographed looking straight to the camera. "Love is the courage to live the truest, best version of yourself. Bruce is love. I love you Bruce," the social media maven captioned the photo.
Kim's second photo featured her and Jenner not looking directly towards the camera. "It might not always be easy but we support you no matter what. Your honesty has opened the doors for others to be courageous and live an authentic life," she wrote.
Meanwhile, Jenner's two other stepdaughters with Kris, Kourtney and Khloe, tweeted their support for their stepdad following the "20/20" interview on ABC.
"Couldn't be a more proud daughter. With courage and bravery, let's change the world. I am honored to stand by Bruce's side and support him," Kourtney tweeted.
"Just finished watching the #BruceJennerInterview with the family. Bruzer, I'm soooo proud of you! Dads really are heroes," she wrote.
According to Jenner, it was Khloe who had the most difficult time accepting his transition from man to woman.