Kourtney Kardashian and Kendall Jenner slather themselves with mud

Kourtney Kardashian and her little sister Kendall Jenner were the pictureof fun as they went on a bonding retreat.

The mum-of-three, 38, and the supermodel, 21, headed to Santa Barbara to go wine tasting - and it wasn't long until they were showing off their famous bodies.Kourtney was having the time of her life as she flashed some serious sideboob while rubbing the mask all over her behind.