Smooth ball attachments not so much. Tongue rings more, but for me, the best ever feeling is when a girl uses a 'french-tickler' attachment. It's not always worn cuz it might rub against the roof of their mouth, so either they put it on for a BJ or they're used to it.
There was one gal way back (not a pro) who used hers on me, plus she knew my spot (intuitively). I swear to god I almost went thru the roof.
If there are any SPs who can use a French-tickler tongue stud, please PM me. Thank you.
