'Now I know why girls need a sports bra': Caitlyn Jenner adjusts to her new body as she plays tennis in new I Am Cait clip

Caitlyn Jenner proved she can have a giggle as she gets used to the changes in her body, in a new teaser clip for her reality show, I Am Cait. 

Dressed in tennis whites, the 65-year-old star, formerly Bruce Jenner says, 'Now I know why girls need a sports bra,' as she struggles to contain her 36D surgically enhanced assets. 

Talking about adjusting to her new life, the reality star says, 'I have a lot to learn,' adding, 'all of a sudden, I am the authority on hair and make-up.'

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'Now I know why girls need a sports bra': Caitlyn Jenner adjusts to her new body as she plays tennis in hilarious new I Am Cait clip 

'Now I know why girls need a sports bra': Caitlyn Jenner adjusts to her new body as she plays tennis in hilarious new I Am Cait clip 

Relishing in her new glamorous appearance, the former husband of Kris Jenner was asked, 'did you change your hair?' before she replies, 'absolutely baby,' while clicking her fingers in a sassy fashion.

The clip also flips to an emotional scene between Caitlyn and his mother, in which she says, 'It's still the same person,' with her mother adding: 'That's your soul.'

It's the second clip released ahead of the new series - in the first, Caitlyn discusses her worries about her children's feelings around her new identity.

Exciting times: Talking about adjusting to her new life, the reality star says, 'I have a lot to learn,' adding, 'all of a sudden, I am the authority on hair and make-up'

Exciting times: Talking about adjusting to her new life, the reality star says, 'I have a lot to learn,' adding, 'all of a sudden, I am the authority on hair and make-up'

Making her giggle: The 65-year-old reality star struggled to contain her new 36D surgically enhanced assets as she returned to her love of sport 

Making her giggle: The 65-year-old reality star struggled to contain her new 36D surgically enhanced assets as she returned to her love of sport 

Locks the part: Relishing in her new glamorous appearance, the former husband of Kris Jenner was asked, 'did you change your hair?' before she replies, 'absolutely baby,' while clicking her fingers in a sassy fashion

Locks the part: Relishing in her new glamorous appearance, the former husband of Kris Jenner was asked, 'did you change your hair?' before she replies, 'absolutely baby,' while clicking her fingers in a sassy fashion

Reaching her destination: The former Olympian looks happier than ever as she giggles her way through the clip

Reaching her destination: The former Olympian looks happier than ever as she giggles her way through the clip

Caitlyn was seen breaking down in tears as she admitted: 'I want them to be proud of their daddy.' 

The reality star and former Olympian also met with friends and family for support and then offered some of that love to a group of transgender youth.

'We're all beautiful!' Caitlyn exclaimed as she mentored the youngsters, who came in for a group hug.

Clink! Caitlyn can be seen celebrating her new life with a host of glamorous ladies 

Clink! Caitlyn can be seen celebrating her new life with a host of glamorous ladies 

Hugs: She has received the support of her friends and family which is made clear in the teaser trailer 

Hugs: She has received the support of her friends and family which is made clear in the teaser trailer 

Helping others: Caitlyn has been using her position to raise awareness about her journey

Helping others: Caitlyn has been using her position to raise awareness about her journey

While those children were excited to meet the star of the upcoming E! series, I Am Cait, the woman herself still held on to doubts. 

Through three marriages, Caitlyn has six children, plus four stepchildren with ex-wife Kris Jenner.

Those children seemed to be accepting Caitlyn for who she is - youngest daughter Kylie Jenner, 17, snuggled up for a hug in one scene and stepdaughter Kim Kardashian, 34, offered fashion advice in another.

'Mom has that!' a clearly amused Kim explained when Caitlyn desired an opinion on a dress. 

Tearful: Caitlyn Jenner broke down in the first preview for the upcoming docuseries as she worried about her children's feelings

Tearful: Caitlyn Jenner broke down in the first preview for the upcoming docuseries as she worried about her children's feelings

Inspiration: In the video, Caitlyn visited a program for transgender youth to help support them

Inspiration: In the video, Caitlyn visited a program for transgender youth to help support them

'We're all beautiful!': Caitlyn shared a group hug and words of support with the youngsters

'We're all beautiful!': Caitlyn shared a group hug and words of support with the youngsters

 Embracing her true self: Caitlyn celebrates her new life with friends 

 Embracing her true self: Caitlyn celebrates her new life with friends 

Family woman: The youth program was happy, but Caitlyn teared up when talking about her children, including youngest daughter, Kylie Jenner (above)

Family woman: The youth program was happy, but Caitlyn teared up when talking about her children, including youngest daughter, Kylie Jenner (above)

Similar feelings of love and acceptance were clear in another scene shown in the trailer, when a group of friends - along with Caitlyn's mother - met for a toast.

'My first feeling was: I lost my son,' 88-year-old Esther Jenner said of Caitlyn, who was an Olympics star before finding later fame on Keeping Up With The Kardashians.

'Then I thought: You know what? I'm gaining!' 

Fashion advice: Caitlyn also consulted with stepdaughter Kim Kardashian, who pointed out that Caitlyn's ex-wife, Kris Jenner, had similar fashion taste

Fashion advice: Caitlyn also consulted with stepdaughter Kim Kardashian, who pointed out that Caitlyn's ex-wife, Kris Jenner, had similar fashion taste

Pay lip service in DvF like Caitlyn

Caitlyn Jenner is one fashionista. She shared an awkward moment with her step-daughter, Kim Kardashian, on an episode of I Am Cait.

Why the awkward moment? Kim unveiled that Kris Jenner has the same little black dress as Caitlyn..sad face..

No need to fret Cait, there's plenty of LBD's around, plus who needs an LBD when you're rocking a sexy lip print wrap dress.

We love the fun colorful print of the Diane von Furstenberg dress, and you can join in on the love too!

The exact dress isn't available but DvF does have a 'Midnight Kiss' dress that is very similar. Head over to Bergdorf and Goodman to make it yours!

Not ready to become a full blown money spending machine? Then take a look at our style carousel below where we have pretty print options that will give you the lip service you need, but for a lesser price!

* PRICES MAY NOT BE AS ADVERTISED
Gain instead of loss: Esther Jenner, Caitlyn's mother, noted that she had gained a lot instead of just losing a son

Gain instead of loss: Esther Jenner, Caitlyn's mother, noted that she had gained a lot instead of just losing a son

Such responses have apparently been the norm for Caitlyn, who unveiled her new look via a Vanity Fair cover story in June.

'The response to my new journey has been overwhelmingly positive,' she wrote in her Caitlyn Jenner: The Journey Begins blog on Monday.

'I'm eternally grateful for all of your sweet messages, letters and gifts.'

I Am Cait premieres Sunday, July 26 on E!. 

'Overwhelmingly positive': A blog post made on the same day noted that Caitlyn had gotten mostly positive responses to her transition

'Overwhelmingly positive': A blog post made on the same day noted that Caitlyn had gotten mostly positive responses to her transition

Coming soon: I Am Cait will premiere on E! on July 26

Coming soon: I Am Cait will premiere on E! on July 26

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