Basically, it's an opt out system concerning pairings. If you don't want to be in a pairing, or more specifically, a same sex pairing, just post here. No need for a reason, just do it like:
My clone Said:
AQua_ng: No gay pairings
It's opt out, because I think there would be less opting out than in. Or the other way round.
My improv background implores me not to contradict what anybody does about me, unless it's more hilarious. Do what you will with Hero, but please be nice about it.