It's official .. Kim Kardashian's earlobes are fully committed to Kanye West.

Kim arrived at LAX this weekend sporting 2 yellow gold and diamond earrings in each one of her ears -- a K and a W -- which obviously stands for Kanye West.

The two have only been dating for a few weeks ... but it seems they're moving pretty fast. They've already been on multiple dates, had ice cream together and Kanye even wrote a rap song dissing Kim's ex.

So, we gotta ask ...