I guess porn women are dumb. They have to be reminded to suck that dick while they are in fact, sucking that dick. Short attention span or whatever.
Another thing I hate is that right when the actors are in the preliminary stages of undressing, the male actor will put his hand on her ass and she immediately starts moaning uncontrollably. WTF?? Wait... that's great. I wish I had a woman like that. She could suck my cock and get me off and when it is her turn, I will idly stroke her ass while watching tv.