Kourtney Kardashian arrives at Nobu bash to celebrate Kris Jenner's new Haute Living magazine cover

Kourtney Kardashian steps out in skin-tight leather trousers and a long-sleeved, bodycon top to celebrate her mother Kris Jenner's new Haute Living magazine cover on Monday night (August 24) at Nobu in Malibu, California.

The 36-year-old 'Keeping Up With The Kardashians' star mother-of-three left her young children Mason, five, Penelope, three, and eight-month-old Reign at home for the evening as she caught up with her siblings Kim, Kendall and Kylie.