Suns out? Bums out! Kim Kardashian flashes famous derrière to thank fans for reaching 225M Instagram followers

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Tiffany & Co. Celebrates 2018 Tiffany Blue Book Collection, THE FOUR SEASONS OF TIFFANY - Inside / Dimitrios Kambouris/Getty Images

Kim Kardashian - who currently is in the process of getting divorced from her husband of six years, singer and designer, Kanye West - flashed her famous derrière on social media to thank her growing fan base for reaching 225M Instagram followers.

The 40-year-old KUWTK star took to Instagram (of course!) to express her gratitude at reaching this humungous milestone, in a black thonged bikini which gave her followers a perfect view of her envious physique.

She posted two images to her Instagram to commemorate her milestone of reaching 225M Instagram followers and gave them a sweet, but simple, caption: "225 MIL LOVE U FOR LIFE," the Skims founder wrote.

Posing in the backyard of her house, by the pool, Kim Kardashian basked in the rays of the sun, while working on her tan on a sun lounger. In the second image, taken from behind, Kim flashed her famous booty for the camera, while donning a pair of black shades.

Take a look at the post below.

Kim Kardashian celebrates reaching 225 million followers with booty pic