They're the pretenders to the Kardashian throne, but there's something lovely about the way that Kendall and Kylie are very much still ingenues.
You wouldn't catch hard-working perma-grin Kim catching a few Zs in front of a camera after a promotional appearance, she's just too darn professional.
But it makes her appear less than human sometimes, and you can't say that about this darling shot of her little sisters sleeping together on a flight from Las Vegas.
Sleepyheads: Kendall and Kylie Jenner look adorable as they nod off together on a flight home from Las Vegas after a promotional stop
The pair had been to Sin City for a promotional appearance at Kardashian Khaos, where they posed with the family's merchandise.
Most bizarre were a pair of beach towels that depicted caricatures of the girls wearing bikinis, but no doubt their fans will lap up it (although you'd have to be pretty perfect yourself to want to lie next to a rendering of their perfect physiques).
The pair are obviously stepping up their work for the family, with Kim busy in London and sister Kourtney heavily pregnant.
A new generation calling: Kylie and Kendall pose together at their family store
A bit creepy: Kylie and Kendall pose with the Kardashian souvenir towel, not a flannel for the body conscious
Even Khloe admitted recently that she'll have to focus on her marriage more, leaving Kardashian business on the back-burner.
So expect to see more of these beautiful brunettes on the Kris Jenner campaign trail.
Kylie took her whole family along to her rumoured beau Cody Simpson's listening party in Santa Monica yesterday.
Heading home: The youngsters board their flight, before falling wearily into one another
It’s clear to see the 15-year-old Australian pop star has won over his perhaps girlfriend’s tough-talking family, even if he hasn’t confessed to winning her heart.
The 14-year-old took her household along to his album listening party today and her relatives seemed to have no qualms about bopping along to his catchy tunes.
Although she left her heartthrob beau to pose with his sister Alli on the blue carpet, the teenager had the support of her mother, siblings and brother-in-law during the photo opportunity.