It was actually Aaron and Nick's sister Angel that introduced Nick to his future wife, Lauren, back in 2009, according to People. Nick would pop the question in 2013, but was so nervous during the proposal that Lauren had to remind him that he was supposed to put the ring on her finger!
Since their marriage in 2014, Lauren and Nick have had three children – their son, Odin Reign, and two daughters, Saoirse Reign and Pearl.