The 39-year-old reality TV diva looked regal in a royal blue skinтιԍнт and sleeveless dress that made the most of her impressive curves.

The Revenge Body star wore her white blonde hair down in waves as she pouted for the camera in images shared to her Instagram page on Sunday.

She was also seen posing with her son Tatum – who turned one in July – daughter True as well as Kourtney’s daughter Penelope.

And then she puckered up with pals Malika and Khadijah Haqq.

In one sH๏τ, Khloe – whose nickname is Koko – wore white framed sunglᴀsses.

The event took place in Malibu and also saw Kim Kardashian all gussied up for the big celebration. Kardashian, 42, had on a yellow ʙuттon-up cardigan and black mini skirt with platform heels.

This will be Kourtney’s fourth child. She already has Mason, Penelope and Reign.

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