Kourtney & Kendall As Good Ass It Gets

5/22/2017 11:09 AM PDT

Kourtney Kardashian & Kendall Jenner's Asses Are All in for Yacht Fun in Cannes

Kourtney Kardashian and Kendall Jenner are cut from the same cloth ... when it comes to their asses on yachts, that is.

Kourtney and Kendall took a break from the hustle and bustle of the Cannes Film Festival and boarded a yacht in the resort town of Antibes ... which is between Cannes and Nice. Not that geography matters worth a crap ... you're here to see what they're what they're wearing.

Aside from swimwear ... Kourtney showed off her new man, Younes Bendjima -- and had some jet ski time with him and Kendall.