Sofia Richie, 21, enjoyed a busy weekend that included a holiday with her ex Scott Disick, 37, on July 4 and a post-holiday with just friends on July 5! The pretty blonde, who looked flawless in a brown and white cow print bikini by WeWoreWhat during her hangout on Sunday, was in Malibu, CA for the festivities and ended up reuniting with Scott on a beach with pals.