That is how homosexuals define themselves:

"People of the third sex are analyzed in the Kama Sutra and broken down into several categories that are still visible today and generally referred to as gay males and lesbians. They are typically characterized by a mixed male/female nature (i.e. effeminate males or masculine females) that can often be recognized within childhood and are identified by an inherent homosexual orientation that manifests at puberty. The homosexual behavior of these people is described in great detail within the eighth and ninth chapters of the second part of the Kama Sutra. While gay males and lesbians are the most prominent members of this category, it also includes other types of people such as transgenders and the intersexed."

-- Amara Das Wilhelm in 'Tritiya-Prakriti: People of the Third Sex'