Kylie Jenner Does Caitlyn Jenner's Makeup In New YouTube Video

Caitlyn Jenner - Instagram

Kylie Jenner knows a thing or two about looking your best.

The 23-year-old star's makeup company Kylie Cosmetics helped make her one of the youngest billionaires in the world.

Kylie is a pro when it comes to beauty, and she often gives makeovers to her family and friends.

Recently, Kylie had a chance to do her dad Caitlyn Jenner's makeup.

In a video posted to Caitlyn's YouTube page, she star explained she had luncheon in town and wanted to look her best.

To prep for her lunch date, Caitlyn called on daughter Kylie for help.

Caitlyn's entire makeup session was posted online for fans to see.

The heartwarming video left smiles and a few tears on viewers' faces.

Caitlyn was thrilled to have her daughter to her makeup. Kylie shared the same sentiments by explaining she's wanted to do this for a long time.

Throughout the sessions, things got emotional as they talked about Caitlyn's transformation. 

When Kylie asked Caitlyn how she feels about her and Kendall still calling her dad, Caitlyn responded by saying she had no problem with it. "I've been the dad the whole way, I will be their father until the day they die, or I die."

Olympic medalist Bruce Jenner made headline news when he came out as a trans woman in 2015.

Following his divorce from Kylie's mom Kris Jenner, Bruce began being spotted out in public with longer hair and a more feminine appearance.

Rumors circulated that Bruce was undergoing surgery to become a woman.

After months of speculation, Bruce finally confirmed he was a trans woman during an April 2015 interview with Diane Sawyer.

He explained he's always felt like a woman and would cross dress.

In June of that year, Bruce appeared on the cover of "Vanity Fair" sporting his new look and going by the name Caitlyn.

Bruce's transition into Caitlyn stunned the Kardashians as they processed this big change in their lives.

However, Caitlyn's stepdaughters Kim, Kourtney, and Khloe showed their support for their stepdad.

Yet, Caitlyn's close relationship with her stepchildren was destroyed after the star made some unflattering comments about ex Kris Jenner.

Not only did this lead to a falling out between Caitlyn and Kris, but also her and her stepdaughters.

Although, Caitlyn may be on the outs with the rest of the family, she can remains close to daughters Kendall and Kylie.

Kendall and Kylie have been very supportive of Caitlyn.

After coming out in 2015, the girls have said Caitlyn was an inspiration to them and it made their relationship grow stronger.

Although, Caitlyn has a close bond with all her children, she says there's more of a connection to Kylie.

Caitlyn explained that Kylie has dinner at her house a few times a week, and that Kylie's an open book, who spills all the details.

As seen in their recent makeup video, the bond between Caitlyn and Kylie is strong as the two reminisced about special memories.