Caitlyn Jenner Sent a Sentimental Birthday Message to Khloé Kardashian

Throwback snap with the b-day girl.

Khloé Kardashian was showered with social media love when she turned 31 on June 27.

Mom Kris Jenner touched on her daughter's "amazing spirit" and "huge heart," sister Kim shared a photo of a younger "loko Koko," and Caitlyn Jenner also went the #throwback route. "Happy birthday, beautiful," she wrote on a touching, past snap with her stepdaughter.

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Happy birthday, beautiful! @khloekardashian

A post shared by Caitlyn Jenner (@caitlynjenner) on

Loko Koko kept her celebrations low-key, spending her birthday night bowling with sisters Kourtney, Kylie, and nephew Mason in Studio City, L.A., which she documented on Instagram. (M-I-A Kim and Kendall wereacross the pond for Kanye West's performance at the Glastonbury Music Festival.)

A little birthday bowling with my faves. 🎳

A post shared by Khloé (@khloekardashian) on

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Even brother Rob, who has kept his posting to the bare minimum, took to Instagram to give Khlo-money a shoutout. See all of her family's birthday posts below.

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Knock knock i've got a delivery! @khloekardashian #khloMoneyBday lets paaartyy🎉

A post shared by Kylie (@kyliejenner) on

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