@Mame,
I don't have a mom and never had sisters. I don't think I would have been looking though.
I also quickly determine real or fake. Fake don't get a second glance regardless of size. Size does not matter, by the way.
I never speak to the chest. Far too obvious and not at all respectful of the lady. No. I look without detection. The look isn't as good that way, but the fact that I don't get caught (as far as I know. I have been wrong before) is an inmportant factor.
I certainly do not have an age limit. Well, as long as they aren't to the waist. Hair to the waist is nice, but boobs just don't do it.