Kim Kardashian shows off big bust, sideboob and toned legs in tight leotard on Instagram for Kourtney’s Poosh

Kim Kardashian flaunts her big bust, sideboob and toned legs in a skin-tight leotard on Instagram to celebrate Kourtney Kardashian’s Poosh.

Kim Kardashian knows the Keeping Up With The Kardashians (KUWTK) family rules: Support each other!

So when Kourtney Kardashian announced the grand opening of her new project Poosh, Kim came through by wearing her tightest and shortest leotard ever. Kardashian posted the photo on Instagram along with a caption hyping Kourtney’s new project.

Kim Kardashian wears a leotard so tight it looks painted on her body

How tight is that leotard that Kim is wearing?

We think it looks as if someone painted the bodysuit on her body. And we’re also thinking that if it’s a real leotard, Kardashian is going to get her exercise for the week trying to wiggle out of the outfit!

Kim is definitely skilled at showing off her weight loss, and Kardashian manages to look slim (check out that whittled waistline) and curvy (hello, sideboob and hourglass shape!) at the same time.

And yes, we see those over-sized sunglasses that make her look even more movie star-like.

But Kim is all about Kourtney’s Poosh in her caption.

Well, so what IS Poosh, Kim Kardashian?

Clever Kardashian sisters.

You have us looking all over the Internet in search of Poosh.

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

For Kourtney, the giveaway to Poosh is on Twitter.

“Educate, motivate, create, curate,” urges Kardashian’s Poosh account on Twitter.

Sounds like a cross between Gwyneth Paltrow’s Goop and Oprah Winfrey’s “live your best life” mantra.

But since we’re not a Kardashian sister, we can only speculate.

However, since Kim and Khloe Kardashian have discussed on Keeping Up With The Kardashians  how Kourtney didn’t seem to do as much work as her Kardashian sisters, we’re guessing that at almost-40-years-old, Kourtney has finally found some sort of a niche or project for herself.

What do you think? Is Kim Kardashian refusing to reveal the details of Poosh because she doesn’t know herself? Or is she keeping her sister’s secret? Share your Poosh guesses below.