Are Nipples Really In?

We all know that one of He's favorite looks is the white wifebeater without a bra. Further, He loves a chick who rocks the no bra look. But the question is, are Nipples really in? Do girls have problems where they need nipple enhancers? Is this considered such a sexy look that girls are going out in search of nipple enhancers to get guys to check them out more? He has no problem with this, besides the fact it would suck to find out it was a nipple fake out.
-He