Three-person civil union sparks controversy in Brazil

According to Globo TV, the union was formalised three months ago, but only became public this week.

Nathaniel Santos Batista Junior, a jurist who helped draft the document, said the idea was to protect their rights in case of separation or death of a partner, Globo reports.

Ms Domingues, who is based in the Sao Paulo city of Tupa, said the move reflected the fact that the idea of a "family" had changed.

"We are only recognising what has always existed. We are not inventing anything."

"For better or worse, it doesn't matter, but what we considered a family before isn't necessarily what we would consider a family today."