Kylie Jenner, Khloe Kardashian Cross Paths with Exes Tyga & Lamar Odom

As it turns out, Kylie wasn't the only one who happened to cross paths with an old flame -- Khloe's ex-husband, Lamar Odom, was ALSO in the same club around the same time that the KarJenners showed up. How 'bout that?! We're told Lamar had arrived…