Justin Bieber Takes Kourtney Kardashian for a Ride

This one's out of left field ... Justin Bieber and Kourtney Kardashian found each other at a nighclub Friday night, and left together.

Justin and Kourtney arrived separately at The Nice Guy in WeHo, but when they re-surfaced they were a unit ... getting in Justin's SUV and taking off.

Maybe she saw the pics.