I was visiting a friend overseas a few years ago and when my friend's wife and my gf were talking, my gf told her where me and my friend could hear, "he has the the best penis." I was embarrassed because it's never something that comes up in conversation with me. But I was also kind of impressed and turned on that my gf would be bold enough to say something like that and not think twice about it. Although she didn't say "biggest" so I don't know if that qualifies. But she has told me I was the biggest she's had and she's said stuff like, "your huge cock fills me up just fine" when I suggested a bigger dildo. That really got me excited. If women knew men, they would know you can never compliment him enough on the size of his wang. But don't spoil him, just bring out a hot comment every now and again. My gf seems to have this down to a science. Too bad we're are in a weird stage right now having much sex at all, but at least I have the memories.