Kourtney Kardashian Reminds Scott Disick What He's Missing on Hawaiian Family Vacation (PHOTO GALLERY)

Kourtney Kardashian and Scott Disick are back together for co-child rearing purposes ... furthermore, it would appear that she's giving him a refresher on what he's not getting on the rug any longer.

The ex-couple are travelling with their children in Hawaii this week, unwinding poolside with some crisp leafy foods. Scott seems as though he overlooked his bathing suit ... however, Kourtney certainly recalled her finest swimsuit.

Difficult to discern whether Scott's borrowing it ... in any case, he ought to be.