Kim Kardashian, Kylie Jenner vie on Instagram for tiniest bra, biggest breasts

Kim Kardashian and Kylie Jenner compete on Instagram for who can wear the tiniest bra to show off the biggest breasts. See which KUWTK star wins!

Kim Kardashian versus Kylie Jenner.

We’re not talking fame (they both have that), fortune (ditto) or fabulous men (also true).

Instead, the Keeping Up With The Kardashians (KUWTK) stars appear to be staging an Instagram contest to see who can don the smallest bra to show off the biggest breasts. See if you agree with our winner!

Kim Kardashian dons tiny thong, tinier bra to flaunt major breasts on Instagram

Give credit to Kim for finding both a teeny tiny thong and an even tinier bra.

With her breasts struggling to stay in place, Kardashian poses without concern for how her face looks.

Because clearly, this Instagram post is all about her body, from that impressive cleavage to the tiny waist to those fabulous hips.

Kim has enough curves for the whole clan (most of whom share her ability to pose in a way that shows off their hourglass figures).

https://www.instagram.com/p/BzQ9HDyArRa

But it’s not just a Kardashian who knows how to show off her “girls” in a tiny bra.

Kylie Jenner stuns Instagram in your basic bra paired with an over-the-top open outfit

Basic bra plus extravagant attire open to show off the breasts encased in that bra: We can only be talking about Kylie Jenner!

While Kim keeps it simple in that bra and thong, Jenner mixes it up by turning the spotlight on her impressive cleavage.

https://www.instagram.com/p/BzRa99zn4SF

Kylie looks like she’s taking a walk on the wild side in the print fabric, while keeping her bra style simple.

And as that flat tummy shows, Jenner is not pregnant for the second time.

Some fans thought that they heard Kylie saying she was pregnant again in a video clip taken at Khloe Kardashian’s birthday party, reported E News.

But although Jenner isn’t pregnant right now, she “talks about having another baby very frequently,” an insider told the publication.

So when it comes to the winner of the tiniest bra and biggest breasts in Kim Kardashian and Kylie Jenner’s Instagram posts: We’re declaring Kim the winner. We like the simplicity of her style…but Kylie is definitely giving her a run for her money.