Kendall Jenner flashes sideboob while wearing nothing but her Calvin Klein jeans in b&w boudoir snap

Kendall Jenner flashed her sideboob while clad in nothing but Calvin Klein's $70 straight leg dark rinse jeans.The reality starlet - who turns 20 next month - has been fronting the American brand as far back as March 25, 

5ft10in Kylie's meteoric rise in the fashion industry also includes fronting campaigns for Estée Lauder and, most recently, Balmain for H&M.

And not unlike Calvin Klein's other brand ambassador Justin Bieber, the doe-eyed millennial's appeal mostly involves her combined 61.9M followers on social media.

Catch more of Jenner on the 11th season of Keeping Up with the Kardashians, which premieres November 15 on E!