Kylie Jenner couldn't go out in her birthday suit for her early b-day celebrations last night. So she wore the next closest thing:

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Tyga was a fan:

As was Kendall:

Also at the party was a giant lip-shaped birthday cake (just like last year's!):

And lots of Kardashians and Kylie Cosmetics products.

Highlights include Khloé calling Kylie a "rich ass bitch" in front of all the guests:

And Kourtney talking about how sacred their love is:

Klassic.