Brody Jenner says Caitlyn Jenner's transition has "helped" their family.

Brody Jenner

Brody Jenner

The 31-year-old reality star admits it hasn't been easy watching his father - who was previously known as Bruce Jenner - transition to a woman but he believes her journey has brought the former Olympian and her children closer together.

Brody said: "It's been incredible. I'm not going to sit here and say it's been the easiest thing in the world but it helped me in a lot of ways. It helped the family in a lot of ways just to be incredibly open."

And the former 'Hills' star is delighted Caitlyn can finally feel "comfortable in her own skin".

He added to 'Entertainment Tonight': "You look at somebody and you don't really know what they're going through. And that's anybody, not just my father, but a lot of other people out there in this world.

"The one thing that you want for them is for them to be themselves and for them to be comfortable in their own skin

"And finally, Caitlyn has been able to do that and it's a beautiful thing to see and I think everybody should go through life -- because it is very short -- being the person that they truly are and who they want to be."

Later this month, Caitlyn will receive the Arthur Ashe Courage Award at the 2015 ESPYS and Brody is hoping to be there to support his famous parent.

He said: "I would love to be there to support my father. It'd be a great thing. ...I'll be there to support Caitlyn 100 percent.

"It's a huge deal. Absolutely. I'm always there to support Caitlyn. There's a lot -- a lot of moving parts. I'll just say that. We do have a big family."

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