Most of us hetero girls really, really, really have no idea why most hetero men have such an over-the-top reaction to this meme. It’s not that you find it sexy in a general way, amongst all the other things you find sexy. It’s that the drooling is so Pavlovian as to be ridiculous. Y’all have been way, way overconditioned on this and it’s getting a little silly.
To add insult to injury, pop culture is, by and large, created by men for men. Therefore, any equal time for hott bi-boy-on-bi-boy action is out of the question. Yes, some of us girls would find that sexy in a general way, and would simply enjoy a little, um, tit for tat, but noooooooooooooooooooooooooooooooooooooooooooooooooooooooo. And, even on the rare occasion where we do get to see such hottness, it’s so “controversial” and so many guys (and some women) get so squicked out that it’s truly laughable.
The question wasn’t about what we should and shouldn’t like - it was about what we do and don’t like. There was no reason to insult us by writing off our preferences as Pavlovian conditioning.