In a world of BDSM it's illegal for a dominate to fall in love with another dominant, same goes for the submissive's. It's also very rare for someone to have more than one submissive...let alone a relationship with 2 Dom's and 2 Sub's, but then again the boys aren't your ordinary couple. "You can't silence us anymore." Dom! Luke and Cal Sub! Michael and Ashton 2016 Luke and Calum. 2013 Ashton and Michael.