Most women comment on size; I think it's natural especially in the heat of the moment, particularly as I usually compliment a woman on her beautiful pussy. Nobody ever said I was anything but big, the biggest or huge. Unless that woman has had tiny cocks before, or is a virgin, or very petite, 'huge' is nonsense so I ignore it. But I do like to be told I'm big; the woman who says it has her pussy fucked harder for it, in the best positions for deep penetration. Comparisons with other men are not usual in my experience, unless I'm fucking a married woman who might tell me that I am bigger than her husband, which is why she's looking to be fucked by other men.