Kylie Jenner snapped a sweet selfie with Caitlyn Jenner on Tuesday during the Kardashian-Jenner family's early birthday lunch [1] for Caitlyn, who turns 66 on Wednesday. "Happy birthday, dad," Kylie wrote [2] on Instagram. "What an amazing year for you." Kim echoed the same sentiments with a selfie of her own, writing, "You have shown me what it's truly like to live an authentic life without caring what the world would think!" Meanwhile, Caitlyn thanked everyone for the birthday love [3] with a video, saying, "Thank you for all the birthday wishes! Celebrating my 66th with 66 memories from an incredible year."

The thoughtful birthday messages comes just a couple weeks after Kylie and Caitlyn's cute dinner date [4], plus Caitlyn's show-stealing appearance at the Voices on Point Gala [5], which aims to empower LGBTQ students. As Kylie said, it certainly has been quite the year for Caitlyn, who made her official debut on the cover of Vanity Fair [6] and later made headlines with her emotional acceptance speech [7] at the ESPYs. Keep reading to see all the sweet birthday shout-outs for Caitlyn Jenner, then check out her memorable appearance on The Ellen DeGeneres show [8] last month.

"Happy Birthday Caitlyn! Are you 66 or is Caitlyn 1? lol That was the debate at our bday lunch yesterday! Have the best day ever filled with lots of love & laughs! You have shown me what it's truly like to live an authentic life without caring what the world would think! I love you!"

"Happy birthday, dad. What an amazing year for you."

"Thank you for all the birthday wishes! Celebrating my 66th with 66 memories from an incredible year."