Cindy Crawford was joined by her daughter Kaia Gerber in San Francisco on Thursday - and the pair looked more like sisters than mother and daughter.MORE: Cindy Crawford celebrates son's birthday with heartfelt postThe modelling duo rocked a pair of luxe white bathrobes for one snap that saw them eating from white containers; Cindy had her hair in rollers before the big event while Kaia kept warm in cosy socks.WATCH: Cindy Crawford reveals secret behind her incredible hairA second snap saw them