Proquusexual is a term for masculine people who are exclusively attracted to masculine people. In this case, both instances of "masculine" can refer to whatever the people using the term wants it to. It can refer to gender, gender alignment, gender presentation, all of these, or some combination of these.
The term was made for non-binary people who are uncomfortable with using terms like "gay", though anyone can identify as proquusexual. One may identify as gay as well as proquusexual if they wish.
Similar sexualities include: toric, mascic, marsic,and solaric. The feminine equivalent to proquusexual is proquasexual.