Matt, Cait and Chris (Photo: chris.a.brandt | Facebook) A New York City-based thruple – sometimes known as a triad – have spoken out on their unusual living arrangements. In an interview and video for The Sun Matt and Chris Brandt, who have been together since 2008, explain how they met Cait Earnest. Chris, 38, is bisexual. Matt, 28, now identifies as homoflexible. He and Matt had begun to explore having an open relationship, and Chris came across Cait, 28, on a dating app in 2015.