Kendall and Kylie are natural beauties, and proved as much with a makeup-free post to Kendall's Instagram account Thursday, and Breaking Celebrity News has the pictures for you.

Kendall, 17, wrote "sister bond @kyliejenner" on the pic, which shows Kylie, 16, mugging for the camera while her older sis stands in the background.

The Jenner starlets, who rack up big bucks modeling and endorsing beauty products, looked fresh-faced and youthful in the shots, despite their busy schedules.