The over exaggerated moans from certain women, as soon as the penis goes in for the first time: "OH MY GOD IM GONNA CUM OH SHITTTTTTTTT" which is pretty ridiculous.
The fucking cameraman who talks all through the first scenes when a girl is stripping or toying herself. Total turn off to listen to the telephone stalker dialog while a hot girl is fingering herself...blech.
When the action starts there is always, and I mean always, that ubiquitous thump thumping rock music. This first occurred in porn films in the 70s - and it's still happening today.
Well, you can FF past that...what I hate more than anything is when the chick is clearly ready cum and for some reason some asshole sees fit to edit it out of the scene or the cam person takes a stupid angle missing the whole purpose of showing a chick cumming in the first place. Dumbest shit ever IMO.