Oh yeah, which one gets you going?
The substance affected bleach blonde answering the door in a towel then trying to entice the guy a couple of years younger than her with some transactional sex?
Chunky "straight" bear trying to get some strange off the straight & unimaginative delivery driver while his wife is out of the house?
Or the attempted blackmail after sexual misadventure with a meth-head?
I mean I can see all of those scenarios cropping up in different porn films, I'm not trying to yuck anyone's yum here.