Kim & Kourtney Kardashian Upstage Kid Sisters ... Moms Got Legs!

9/14/2015 6:52 AM PDT

The elder Kardashian girls will not go quietly -- Kim and Kourtney Kardashian slipped into leg (and nearly crotch) revealing outfits to take the whole fam bam out for dinner.

All 5 Kardashian-Jenner sisters (plus Tyga) ate out at Il Mulino in NYC ... where it's still Fashion Week.

Kendall-the-model, and Kylie-the-18-year-old might be getting all the attention lately but Kim and Kourtney's knee-high boots seem to be screaming -- we're the OGs of this game!