theres nothing wrong or unnatural about nipples showing through clothing. if anything, a lack of nipple pokethrough on products such as tshirts, bikinis, thin dresses, etc would be 'unnatural'. the only time i do not see nipples these days is if the woman is wearing a pushup/padded bra with like an inch of cloth between her nipples and her outer clothing.

its more difficult to have proper nipple 'topology' (for lack of a better word) on a shirt than to just model a smooth breast. i put them there for realism, and because - IMO - they look good.

when i make a clothing item which wouldnt allow nipples to show through - like a suit jacket, pushup bra, padded dress, etc - then i will not include a nipple morph. but for clothing such as tshirts, thin dresses, bikinis, etc they will always have one since they do so in real life. if you dislike them for some reason they can be hid with a mere moment's postwork with a soft clone/healing brush type tool.

if you are complaining about, for example, a suit jacket in the marketplace that has prominent nipples poking through i agree with you that they shouldnt be there. the objection to nipples poking through a tshirt, tank top, thin dress, bikini, etc however, is a result of our uptight/repressed north american morality - the same morality that finds excessive brutal violence on prime-time television perfectly acceptable yet launches into a month-long nationwide mass conniption fit if they see a nipple-slip during the superbowl halftime.

ive encountered the same thing before when i used to work in a fashion store in a mall in my college days. we got a new set of mannequins, and their nipples showed through the t-shirts we put on them. a couple of customers actually complained, but there was this one older woman who came in 3 times and went absolutely ballistic - how they were disgusting and corrupting the minds of innocent people yadda yadda. she eventually went to the manager and freaked out and he broke down and had us file the nipples off the damned mannequins.

id like to see a woman put on a t-shirt without a bra and not have her nipples visible. they are natural parts of womens bodies that can be highly visible depending on the type of clothing they wear. this has nothing to do with "striving to fit into this crazy ideology of "the perfect female form" - every woman has them. theres nothing disgusting, immoral, unsavory, etc about them, and if the clothing i create is the type that would typically show them, theyll be there :)

cheers,
-gabriel