I'd love to find out.

If that is you (rolando88) that is down rating everyone for giving an answer you don't agree with when you are the person that asked for their opinion in the first place, I just want you to know that is not the point of Answerbag.
And by the way, this question belongs in the adult section.There are young teenagers on this site.

Actually it does make a difference. Mostly though when the tongue is on the underside of the cock, e.g. the guy is lay on his back with the girl sat inbetween the legs looking up at him. That way the ball presses on the frenulum which is the sensitive area under the glans (head/bellend) full of nerve endings. When it's pressed onto this and the underside of the shaft during the regular sucking movements, the speed at which orgasm is achieved increases as does the overall intensity of the orgasm. Funnily enough, thumbrings work in a similar way during a handjob.

heyy just wanted to let you all know that i have a boyfriend with his done and he was licking me out the other day and it felt so good i literally orgasimed 5 times in under 2 minutes swear to god :)
Love ya bitches :)

When I got my tongue pierced, my boyfriend at the time loved the change.
My current boyfriend is crazy about it.
So yes, in my experience, it does. You just have to learn how to use it! It's more pleasurable for him, but also for me, I love to play with it.

It's probably a personal preference, but I honestly don't notice anything above and beyond; frankly it was a pretty big let down.