I have no problems with a little teeth while getting a bj. But I'm assuming it has to be really, really light. And I guess if most people don't like it, then don't do it unless he asks for it. I asked my ex to try it and I really enjoyed it. However, she stopped doing it after I began calling her a "raker" jokingly. But since nobody else likes it, don't do it. Also, everything that Ellyn told you is dead on.