These 19 Sets of Famous Sisters Have 1 Thing in Common: Great Style

Who they are: Before Nicole Richie became a mother and fashion designer, she starred in the Simple Life with Paris Hilton. Since then, Nicole's taken her fashion prowess to run her successful House of Harlow line. Sofia Richie, on the other hand, got her start with Madonna's line Material Girl and is friends with the likes of Cara Delevingne and Kylie Jenner. More recently, Sofia collaborated with Frankies Bikinis and came out with an awesome line of swimwear.