From oldest to youngest, the Hough sibling lineup is as follows: Sharee (born July 22, 1977), Marabeth (born November 26, 1980), Katherine (born June 9, 1982), Derek (born May 17, 1985), and Julianne (born July 20, 1988). Their parents, Bruce and Marriann Hough, divorced in 1998. Marriann remarried that same year to financial consultant Aaron Nelson. Aaron had four children of his own from a previous marriage, bringing the total number of kids in their blended family to nine. According to the Las Vegas Review-Journal, the family moved into a 4,000-square-foot Las Vegas home in 1999 to accommodate their family of 11.
Although the five Hough siblings are fairly open about their personal lives on social media, the Nelson stepsiblings prefer to keep a low profile. From what we've gathered via Marriann Hough's Instagram profile, the Nelson kids consist of Brittany, Kallie, Kimberly, and A.J. Unlike Julianne and Derek, it seems the four stepsiblings are happy to live normal lives outside of the limelight.