Kim Kardashian Treats Her Favorite Nephew To New Shades

Mason Disick has the coolest aunt ever!

Kim Kardashian donned a pretty nude dress with matching heels to take her two-year-old nephew to church in Calabasas, on Sunday, before letting him pick out a brand new pair of posh shades -- he's so stylish!

Kim made sure to pack Mason's little lunch box for the outing as she continues to be a doting auntie to Mason, to give sis Kourtney a break at home with her new baby girl Penelope.

Kim shared her Twitpics from Sunday Funday with the fam, tweeting: "@KimKardashian Fun day at church with Mason today, then a BBQ & swimming with friends & family. Couldn't have been a more perfect Sunday!"