members. Formerly an IT manager, Domingues now is a doctoral student at the University of Sao Paulo, studying family law. Her dissertation, she said, is about how you can love more than one person at the same time. Her research looks at cultures, places, sociology, anthropology, religion and the history of family and intimate relationships in Brazil. Through mutual friends, the trio found Domingues and traveled more than 600 miles from Rio, into the interior of Sao Paulo state, to Tupa. Domingues does n't hesitate to call herself married, though she and her husband are bound by a stable union and not a civil marriage. Her husband works with her as a deputy public notary. We have had all the reactions you can imagine, she said. Other polyfidelitous groups have reached out to her seeking the same civil union status. Domingues is studying the cases of a quintet -LRB- two men and three women -RRB- and another trio -LRB- one woman and two men -RRB-.