My uncle and I are arguing over just what is plastered over her boob. What is the proper name for the little sucker?
Nipple Shield!
You can see some here: http://www.bodypunks.com/category.asp?category=NIPPLE%20RINGS
And no, it not a little sucker!
It’s a nipple shield. They come in all different styles. Its basically something ornate with a hole in the middle. Put it over your nipple, then put the barbell back in and it holds it in place. Most piercing shops and head shops sell them.
You can also get nipple sheilds that function without a peirced nipple - the inside diameter of the hole is small enough that it squeezes the nipple, which holds it on. This has the advantage of giving you perky-looking nipples, and the disadvantage of only being comfortable for a few hours. I don’t know how long I’d wear the kind that’s held in place by a barbell, either, though. I imagine it would pull on the barbell, which would get irritating right quick.
I imagine the irritation would pale into insignificance against the annoyance of having Justin Timberlake pawing at your breasts.
Maybe she was wearing them as a form of self-defense? 
Merriam-Webster Collegiate pasties small, round coverings for a woman’s nipples worn esp. by a stripteaser.
Most places that allowed strip tease required that the entire aureole be covered and not just the nipple.
Pasties also came in various exotic forms, like the star on Janet.
Yes, but Janet did not have a pasty, Collegiate or otherwise. 'Twas a nipple shield, which is a whole different animal altogether.
At Teasers, a “club” in Warner-Robins Ga. the pasties are clear so you can see through them. Apparently the law was interpeted so that they had to be covered, but the cover did not need to be opaque. Would not have know they were there except for the slightly shiney disk.
And this was about 6 years ago, so it might be different now.
I have never heard of (or seen) such a thing before. Are they common in America or women-folk in general?
Sort of funny how one phrase can have two very different meanings. A “nipple shield” can also be a little hemisphere of soft plastic or latex, worn inside the bra of a new mother whose nipples are sore from nursing (or, gawd forbid, thrush). Prevents chafing while the skin on the nipple heals, you see. It’s about as non-erotic as you can get, in fact I think it qualifies as directly anti-erotic.
I imagine they’re somewhat common among the population who like to hang things from their nipples, but those folks are a decided minority.
Can’t believe I’m posting this, but:
Body Jewelry. According to a report I heard on the radio, Janet was wearing number 7.
That may be what it is. But its proper name is Russell.
As in Nipsy. What—ow! Hey!
If you’d like to confirm for yourself exactly what the shield was, and how it was held on, and what exactly was covered (or not) there’s a closeup here http://www.janetjacksonflash.com/.
Oh my Dawg!
Janet’s got a pierced nipple!!!
That’s got to be a big help to her brother’s (pending) case, right?
I just feel sorry for poor Justin Timberlake… I mean, he’s the real victim in this whole media spectacle, right?
I’ll bet that neither of Britney’s teats are pierced.
Yet.