Male-feminine pairs are the simply type of dual couple discordant to own sex and are also as the common as exact same-sex dizygotic sets Lucas Calais-Ferreira, Marcos E Barreto, Everton Mendonca, Gillian S Dite, Martha Hickey, Paulo H Ferreira, Katrinaen savoir +Male-feminine pairs are the simply type of dual couple discordant to own sex and are also as the common as exact same-sex dizygotic sets