Kendall Jenner's modeling career has definitely been taking off. Just today (September 7), she was featured on the cover of the UK publication Sunday Times Style alongside Olivier Rousteing, the creative director for Balmain Paris.

But it looks like that wasn't the only fashion shoot she's been involved with lately.

In this bare-it-all picture that her sister Kourtney Kardashian posted on Instagram yesterday (September 6), Kendall is discreetly posed with messy hair and not a stitch on.

In the caption Kourtney tagged photographer Russell James, who is an acclaimed fine art and fashion photographer. This suggests the shot might be part of another, larger spread for Kendall.