'KUWTK': Kylie Jenner worries about showing off post-baby body at Calvin Klein photo shoot (Exclusive)

Kylie Jenner gets some much-needed support from her sisters in the upcoming episode of "Keeping Up With the Kardashians."

Months after giving birth to daughter Stormi Webster, Kylie and her sisters took part in their second photo shoot for Calvin Klein, which saw the youngest of the Kardashian-Jenners wearing a matching sports bra and underwear set which showed off her post-baby body.

In an AOL exclusive clip from the upcoming episode, which you can watch at the top of the page, Khloe, Kendall and Kourtney encourage Kylie as she becomes anxious about her new physique at her first photo shoot since giving birth.

"Keeping Up With the Kardashians" airs on Sundays at 9 p.m. EST on E!

RELATED: See photos from the Clavin Klein photo shoot:

Kardashian-Jenners' Fall 2018 Calvin Klein campaign
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Kardashian-Jenners' Fall 2018 Calvin Klein campaign
Smiles all day shooting the new Fall 2018 @calvinklein underwear & jeans campaign with my sisters. #ad Join Our Family. #MYCALVINS Go see more at www.calvinklein.com/mycalvins photo by @willyvanderperre
Our family makes us who we are: @kimkardashian, @kendalljenner, @kourtneykardash, @kyliejenner and @khloekardashian are family, and so are you. The sisters are featured in the #Fall2018 #CALVINKLEINJEANS and #CALVINKLEINUNDERWEAR campaign. Discover new styles, including the heritage-inspired Monogram underwear at calvinklein.com/mycalvins. ⠀⠀⠀⠀⠀⠀⠀⠀ Join Our Family. #MYCALVINS
Such a beautiful shoot with my beautiful family!! These pics make me miss my pregnant tummy! Can’t believe I’m saying that @calvinklein campaign shot by @willyvanderperre Join Our Family. #MYCALVINS #ad See more at www.calvinklein.com/mycalvins
love being back with my sisters in the new Fall 2018 @calvinklein underwear & jeans campaign. Join Our Family. #MYCALVINS @calvinklein @willyvanderperre see more at calvinklein.com/mycalvins #ad
Daughters. Sisters. Mothers. Friends. Shot in March 2018, @kimkardashian, @kendalljenner, @kourtneykardash coordinate with new mom @kyliejenner and mother-to-be @khloekardashian in #Fall2018 #CALVINKLEINJEANS and the new Monogram essentials from #CALVINKLEINUNDERWEAR. Join Our Family. #MYCALVINS ⠀⠀⠀⠀⠀⠀⠀⠀ See more at calvinklein.com/mycalvins
my beautiful family, shot by me, in @calvinklein Join Our Family. #MYCALVINS
Our new Fall 2018 @calvinklein underwear & jeans campaign. Join Our Family. #MYCALVINS Go see more at http://www.calvinklein.com/mycalvins
bts @calvinklein w/ @marcushyde
shot this beautiful campaign for @calvinklein by @willyvanderperre just 3 weeks after i gave birth! #ad I also love that baby true joined us for the shoot. Such special pics 🖤 Join Our Family. #MYCALVINS See more at www.calvinklein.com/mycalvins

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