I always figured that the 2 women grinding were milling grain. Like with a mortar and pestle. Although "two women grinding together" is pretty dang funny.
I think the debate about passages like this isn't so much whether they are talking about gays as it is about the part where people dissapear. I have listened to TV preachers read passages like this to give evidence for whether there will be a rapture or not.
I don't think it will happen like that but if it does there's not much I can do about it. I figure questions like that are above my spiritual paygrade.