Yes, yes it is. When you have guests over and you don't want them to see how messy your bedroom is... do you close the door to hide the mess?
Thought so.
Context, sweetie.
So you were raised in Namibia and the Amazonian rain forest? Odd. And here I though you were raised in Asia.
For the record... feeding an infant is not a sex act. I thought an 18 year old would know that by now. Maybe you should lay off the physics and crack open a human sexuality and a biology book.
As was pointed out earlier, this is the wtf thread. I'm done. Feel free to continue arguing about how your personal discomfort with seeing a boob (why are you looking anyways if it bothers you so much?) outweighs anothers rights to not be forced "behind closed doors".