The Keeping Up With The Kardashians star is expecting her second child, a boy, in December, and displayed her growing baby bump in the tight-fitting ensemble on Wednesday night (2 September).
Kim, 34, finished her look with slicked back hair, contoured cheeks, a pair of heels and one of her her favourite floor-sweeping shirts.
The pregnant star posed for pictures alongside little sisters Khloe Kardashian, 31, and Kylie Jenner, 18, as well as their mum Kris Jenner, 59.
Kylie was looking oh-so-Kim in her crop top and pencil skirt combo, as well as showing off her newly-dyed blonde hair, which she had done after being inspired by Khloe. Khloe, meanwhile, went for a black dress and camel overcoat, while Kris promoted love with a black dress emblazoned with a heart design.
Missing from the family lineup were Kourtney Kardashian, 36, Kendall Jenner, 19, and Rob Kardashian, 28.
Kim started the family's app business with the launch of her phenomenally successful Kim Kardashian: Hollywood two years ago. It allows users to create a character and navigate Hollywood with Kim's help, and raked in more than $70 million in its first year.
No wonder the rest of the family want to get in on that action!
So far, details about the apps remain under wraps, with all details from the glitzy launch embargoed. But judging from the success of Kim's game, we're imagining we'll be equally hooked to these new ones...
All you need to know about Kim Kardashian:
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