Guess Who These Christmas Sisters Turned Into!

Before these two festive sisters -- acting 'Goofy' in front of the Christmas tree -- turned into superstars ... they were just growing up in Beverly Hills and admiring their famous 'rents ...

You first saw them on a Bravo reality TV show, but now you can't flip a magazine (or scroll socials) without seeing their hot bods! One's a model, and the other's a singer ...