The 18-year-old had models over at her mansion, as many 18-year-olds do, for such activities as taking Instagrams and taking Snapchats.
Model Camila Morrne posted a similar, even-less-subtle snapchot of the attendees and their butts, in what looks like an updated version of the Pink Floyd poster every freshman dude had in their college dorm.
Speaking of butts, Kylie and Hailey Baldwin showed off their sultry tattoos, with Kylie having ironically imprinted the phonetic spelling of "sanity," and Hailey writing the Portuguese word for "people" along her hip.
With all the attention paid to their butts, Kylie and Hailey made sure that the people remember what their beautiful faces look like on Snapchat, with excessive selfies.
Kylie was genuinely pissed when Hailey hogged BOTH the dog filters.
Kylie had fun with herself as people were dancing in the background.
And finally, not to be upstaged, Khloé stopped by to remind people about her butt.
What a wonderful way to kick off summer, the season when Kardashians wear even less clothing than usual.