It does seem a little bassackwards, now that I think about it. The nipples are business end as far as feeding the babies, which shouldn't be sexualized at all (not only IMO, but I'm sure many others would & have agreed), but those marvelous fleshy mounds behind the nipple have been the key to women attracting the attentions of men for millennia now...& one of many elements of what has made humans unique from our other mammal cousins...

__________________
Plug me into somethin'

If the theory does not conform to the facts, then the facts must be discarded.

No good deed ever goes unpunished

Never argue with an idiot. He'll drag you down to his level, & beat you with experience.