I am very sensitive to start, but prefer a bit more effort right before the O. I don't like a guy who uses just the tip of his tongue and applies too much pressure. Much prefer the whole tongue as if you were licking an ice cream cone.
I also do not like for a guy to just stay in that one spot....annoying!! It's a baseball diamond so hit all the bases then come back home.
Oh, and once I go, don't freaking touch me for at least 10 min. lol. I am much like a guy in that respect. I just want to be left alone for a while!