Well because men chest will look ugly without nipples, gotta have some
mark there on the chest.
Just like we should have belly button.
And plus we were all BOYS when we were cells.... But luckily, your dick
didn't fall off and your nipples didn't develop titties....
It is the woman's evil plan to slowly turn guys into the baby caring slaves they have in plan. They have started to turn some into the femine type and able to match up colors and design rooms and do all the girlie things. Their next step is to get them to grew boobs and carry babies.