VIDEO : Kourtney Kardashian Hooking Up With Justin Beiber To Get Revenge on Scott Disick

Justin Bieber isn?t sorry about his fling with Kourtney Kardashian. Though Scott Disick is said to be disapproving of the two hooking up, Bieber is allegedly a-okay with being caught in the former couple?s drama. Word has it that the 21-year-old singer is thrilled that Kardashian, 36, is into him ? even if there?s nothing serious going on between the two. ?It?s just one of those things where it makes Kourtney feel good about herself. It?s not serious at all,? a source said. Kardashian and Bieber have been ?hooking up since late August, early September? but have just started to spend more alone time together.