For Adults only?

How can I I get a better finish when my guy goes down on me? He's got this whole "clicking" technique, as much as it feels good, after a while, it starts getting overwhelming...what can he do to make it more pleasurable so i can finish easier without having to worry about how overwhelming it is? Guys what do you do that your girl loves? Girls what is it that your guy does to you that you just absolutely love?