After Kourtney Kardashian marked her 45th birthday by going on a trip with her kids, it looks like her three eldest tots returned home to celebrate Passover with their father, Scott Disick. On the night of Tuesday, April 23, the dad-of-three, 40, uploaded a video to his Instagram Story that showed son Reign Disick, 9, displaying his jewelry while talking to the camera. “What’s up, guys? Happy passover!” the reality stars’ youngest son said while wearing blue animal print pajamas, sunglasses, a chain necklace, bracelet and thumb ring. It’s unclear if the Poosh founder and her ex’s other two kid…