If I had a pound for every GFY romance I've read...well, I'd be a very wealthy woman. As a genre it's pretty popular, oddly enough especially with the female readers, who, one would think, would like that least. After all, what they're cheering on is a straight man realising that he doesn't need a woman to make him happy. That actually the feelings he has for one particular man are enough to override his natural inclination towards the fairer sex. From a straight woman's point of view, surely that can only be threatening?
From the gay side of the fence, GFY is both the ultimate fantasy and, in reality, a total nightmare. I've been there. Trust me, it's surprisingly easy to talk a straight man or woman into bed with someone of the same sex given the right set of circumstances. And no, I don't mean get them blind drunk. Most people are far more persuadable than they even realise themselves. For a one-nighter, or even a fling, it's great. There is a certain sense of pride attached to being able to 'turn' someone, however briefly.