User blog comment:Hulk10/Tamaraneans/@comment-3121860-20150411214937/@comment-1038387-20150411221850

Homosexuality and bisexuality aren't straightforward matters. It gets tricky. You have to make a distinction into relationships and sexuality. A woman who first dates a man and then a woman is not necessarily bisexual - she could be homosexual who was closeted to herself during the first relationship.

The only Tamaranean relationships shown are heterosexual. No LGBT Tamaraneans have appeared on panel AFAIK.

"Bisexual" doesn't quite accurately describe Amazons (primarily because of the misunderstandings about the term mentioned above).
 * On Earth-Two, Amazons were just women who did not have a relationship. No mention as to their exact creation/conception, or any relationships with men other than Wonder Woman and Steve Trevor
 * On Earth-One, all Amazons were sculpted from clay by the goddesses. No same-sex relationships, and other than Wonder Woman/Steve and Artemis/Creon, no different-sex relationships.
 * On New Earth, per the George Perez reboot, Amazons were all women in a different-sex marriage, murdered by their mate. They were then resurrected as Amazons by the goddesses, with no apparent memories of their previous life. Most stayed single, very few found a male mate (Antiope and Theseus). In their centuries of isolation, several did develop a same-sex relationship. Most websites mention Io, a Greg Rucka creation, who had an unrequited crush on Wonder Woman. There were earlier couples, however: priestesses Menalippe and Penelope, and later Iphthime and Anaya.

However, these are only relationships; there is no explicit mention of sexuality. These Amazons could be homosexual, bisexual, pansexual or polysexual.