Khloé Kardashian was all-smiles as she made her first appearance since welcoming her son attending Kendall Jenner’s 818 Tequila bash on Thursday.The 38 year old arrived at SoHo House for the event in Malibu, California, and was joined by her siblings Kim Kardashian and Kylie Jenner to celebrate their sister Kendall’s business venture. Khloé and her ex Tristan Thompson welcomed their second child earlier this month via surrogate.The pair reconciled last year but split in December, after it was uncovered that Tristan had secretly fathered a child with Maralee Nichols.