How Kourtney Kardashian and Scott Disick Celebrated Son Mason's Bar Mitzvah (Source)

Mason Disick’s bar mitzvah was a family affair! Over the weekend, Kourtney Kardashian and Scott Disick’s son had some of his family close by as he celebrated his milestone 13th birthday. A source tells ET, 'The family had dinner together and then his party was held at Offsunset in West Hollywood.' The source adds, 'Scott took the lead on planning everything, and he was so happy with how it turned out.' As for Kourtney and Scott, who ended their relationship in 2015, they were focused on making sure the birthday boy enjoyed his celebration. Our source says the two 'were very friendly with each other and talked and hung out at the party.'