Kaia Gerber and Austin Butler are definitely more than friends. A source divulged to PEOPLE on Wednesday that the model, 20, and the actor, 30, 'are in fact dating' and that 'all of her 'friends think they are so adorable' together. 'It's a total step up from her last relationship and she knows it too," said the insider, who was referencing Kaia's ex Jacob Elordi, 24, who she split from ...