Bluidy 'ell!
Nineteen pages of fighting over a perfectly reasonable question, considering that 97 - 98% of the world population is responsive to the opposite gender
What's reasonable about asking two men which of them is the female? Say it out loud. "Which male is the female."
See how utterly retarded it sounds. Maybe from your limited, uninformed perspective you can find some way to justify that question, but to me it is utterly ridiculous.
A gay relationship involves two males and a lesbian relationship involves two females. In a gay relationship there is no female and in a lesbian relationship there is no male. I don't see any way how you can justify that question. If you have to ask, ask who is the more assertive in the relationship. Don't ask who is the opposite gender, because there is no opposite gender in the relationship.
Every relationship has its own distribution of power where one partner is usually more assertive than the other. In most heterosexual relationships, the male is the more assertive one due to the way many people still adhere to gender stereotypes. However, when we encounter a heterosexual marriage where the husband takes a more passive role and the wife takes a more assertive role, we don't call the wife the man and the husband the female because it's silly and makes no sense. Why should we then call one half of a gay relationship a female just because he is less assertive than the other half?
Maybe next time someone asks me this silly question I should grab them by the balls, twist it around and crush it until I hear something go -POP- and then say that I'm the female in the relationship.