David Johnston wrote:

Is it just me, or are there a huge amount of lesbians in the various
Crystal Tokyos?  You never once see a guy-guy pairing there.  I'm
starting think there must be a gender imbalance.

Well, think about it, the ten most powerful beings on the planet are in
Crystal Tokyo on a regular basis (Endymon, Serenity, the four inner
Senshi, the four outer Senshi) and _nine_ of them are female.1)  Few men
are willing to have a relationship in which they are the weaker sex ^_^
2)  Few men are willing to have a relationship in which their partners
can destroy them with a thought
3)  Few men are willing to have a relationship with someone who will
outlive them by several million years
4)  Few women are willing to have a relationship with someone who they
will outlive by several million years
5)  These women have been together for a millenium, it's only natural
that they'd be more intimate with each other than anyone else