^Breasts, being distinctively female, have always exuded sex, the more prominent, the more appeal, at least to a point. I would suggest the subjective point is where the observer finds them excessive and that can be secondary to a variety of personal perspectives. For me, breasts should be at least somewhat in their correct anatomical position, which is the chest; I do not find a girl sexy when her hanging breasts have no fullness in the chest, but have the appearance of a low beer gut. This means, from a logical position, as they get larger, they have to get increasingly fuller.
How many times have you seen a stunningly beautiful girl in a bikini, but absolutely flat as a board? Though beautiful, the sex appeal is diminished, seriously if she is standing next to a girl with larger breasts. Hence those girls seek implants; they know being flat does not complete their appeal and they want to feel good about themselves. And the politically correct stands behind her, until she has gone subjectively too far, then she must have serious psychological issues or be in the porn industry. Your freedom of choice becomes a platform for criticism and condemnation from the gang mentality of the PC crowd.
How many times have we heard a quack state a girl wanting huge breasts has a serious body dysmorphic disorder? Yet the statement itself is flatly absurd if the girl knows her breasts are huge. The problem is that people are not called out for their stupidity when if falls within the realm of group think mentality. Girls like Foxy and Allegra should not be ostracized, but embraced for following their dreams.