Proquasexual is a term for feminine people who are exclusively attracted to feminine people. In this case, both instances of "feminine" 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" or "lesbian", though anyone can use the term proquasexual. One may also identify as gay/lesbian as well as proquasexual if they wish.