Well sorry to ruin it, but porn very rarely equals good sex, we had a lot of productions that rented the house so we archive the behind the scenes footage for our paysite members (have well over 60 productions in archives now).
Firstly - what lasts 20 minutes on the video is usually shot for approx 120 minutes on the stage, with makeup and all the fake bullshit around it.
It's all way too artificial, fake moaning, jerking off 5 times in an hour to keep the wood, they're trying to pour water on them so they look "hot and sweaty", changing angles, repeating a totally bogus introduction 15 times, different close ups, sticking the cam up their ass - it really is a HUGE turn off in most cases.
What's NOT talked about is that many males actually FAIL and don't even get a wood, so if there's not a fast replacement the production is fucked.
A couple screenshots:
