Another day, another inappropriately-sexy outfit for Kylie Jenner at Coachella!

The 17-year-old partied with 25-year-old boyfriend Tyga and sis Khloe Kardashian in the desert heat yesterday, wearing ... well, almost nothing. And she took to Instagram to share her personal snaps with fans. Seriously, though, we wonder if she gets more fan compliments or more haters hate on social media. It's gotta be tough on the ego ... guess that's why she keeps uploading more and more -- hoping to tip the scales in her favor at some point.

Khloe's also partying with a boy out in Indio -- on-again-off-again beau French Montana. She's not so public with her love affair, however -- no pix of Frenchie on Khloe's Instagram! Just Kylie and Kendall (above right) with the caption "Bad Bitches." Such a compliment!