While all pain is relative, some spots on the body hurt universally no matter what. And if you ask anyone who's had their nipples tattooed, they would likely all agree that spot hurts like hell. Nipples, whether they belong to a man or a woman, are extremely sensitive. Someone needs to be a real badass if they want a tattoo machine anywhere near their nipples. However, it takes a truly hardcore collector to decide to black out their nipples. 

If you're not already aware, blacked out nipples means wall to wall saturation of ink on one of the most sensitive parts of the body. If you think coloring in a tattoo on your arm or leg hurts, imagine how that feels over the nipples. Take a look at the gallery below to see photos and a video from 12 collectors who made the bold choice to black out their nipples. Then let us know what you think of these ballsy tattoos and if you'd be tough enough to get it done for yourself in the comments section on Facebook.

X Marks the Spot

Bring on the Pain

Moving Target

Bye Bye Nipple

Sun's Out

We Love Nipple Tattoos

Black and Bold

Stunning Artistry

Lots of Dots

Glutton For Punishment

One Word: OUCH!

What do you think about these insane blacked out nipples? Would you consider tattooing over your nipples? If you've tattooed your nipples, how did it feel? Let us know your thoughts, opinions and questions in the comments section on Facebook.