Because people are rubbing their balls on you whilst you sleep ;)
Ran out of lube. . .
it taste like metal
metal.
embarrassment taste like metal right after a rain storm.
Cancer of the breast can cause this.
If you were to suck on your own skin then suck on a girls nipple, it would be the same. The nipple doesnt taste of anything.
Be Honest with him and, tell him that his nipples have a funny taste to them, unless he sprayed calone on hisself. or didn't shower.
Contrary to urban mith, nipples do not taste like onions. However, depending on which woman is to be spoken of, tastes may change depending on their genetic makeup. i.e. sweat
Sulfur tastes like sulfur.
Sometimes it can taste like rust/metal because your gum is bleeding and it has a kind of metally taste
A bit like burning flesh, if you lick a live wire, that is what you will taste. Electricity, or electrons in motion, has no taste. What you taste by putting your tongue on the battery is the metal posts, hence the metallic taste.
It means you can taste metal :P