Sexy Maternity Clothes

So I've noticed something...interesting...about maternity tops. They all accentuate your cleavage. Be it plunging v-necks, ruched bodices, or wide open expanses of neck and chest flesh, the message they're going for seems to be:

Hello! I'm pregnant. Please enjoy my ever-enlarging boobs. Thanks.

I'm not sure how I feel about this trend. I don't usually subscribe to puritanical conventions of modesty but I find myself layering discreet tank-tops underneath a lot of my new wardrobe.