I think that any woman that says that size doesn't matter is lying. I'm a woman and I'll admit that size does matter... but that doesn't mean that the bigger the better. I was with a guy once that I never even tried to have sex with because it just wouldn't fit with me, it was way too wide and outrageously big. So, for me, when I say that size matters, I mean that I need someone that is compatible with me. I need someone who I can enjoy sex with. And of course we are talking only about sex. There are all the other things that I expect from a boyfriend, like intelligence, motivation, a sweet person, strong physically and emotionally, one who has goals, is loving, one that I can talk to and share my dreams with, etc. So, I think that if your girl told you the size of her ex's penis, then she should be the one to feel guilty about this, because it just makes her look shallow, to go around talking about her old guy's penis. I have to say that personally, unless there's a problem (too big or too small), which usually isn't the case (most people are average), then I find better things to talk about with my friends, not the size of my man's penis. I hope that this answer helps at least to understand me. I don't know what's with the other women. I've always seemed to get along with guys better... :) but anyway, you're right in the double standard comment, but don't think that all girls are like that. I'll tell you that I'm an example of one who isn't like that.