Kylie Jenner -- Ho Hum ... I'm Almost 18 (PHOTO)

Kylie Jenner posted yet another revealing bikini photo over the weekend as she approaches the most anticlimactic 18th birthday in human history.

Has there ever been a more "adult" 17-year-old? She dates a 25-year-old guy, makes millions, owns her own mansion ... and, oh yeah, that body.

August 10 ... who cares?