What they did?
While Presley works with the likes of Dolce & Gabbana and Calvin Klein, his sister Kaia aligns herself with brands like Marc Jacobs and Alexander Wang.
Not to mention the runway shows, where both have made plenty of appearances across the world including New York, Milan, London and Paris.
Fashion aside, being Millennials, Kaia and Presley are also social media stars where Kaia amasses a following of over 1.6 million users, while Presley is a little over 370 thousand on his account.
UPDATE: And here's another new reason to love Kaia!
Fresh off the runway, Kaia has won hearts of the entire fashion industry this last weekend when she opened the show at Alexander Wang (We definitely predicted this. See: "Why are they one to watch?" above).
Opening the Alexander Wang show with a power strut that shook the entire New York Fashion Week, this is yet another proof that Kaia is the model to watch out for in 2017/18.
And can you believe this is only her second runway walk ever? The first was Calvin Klein 205W39NYC show a few days prior.