In my novel CROOKED LITTLE VEIN, I lightly fictionalise a TV interview with a male porn performer. In the novel, he says:
“Anal sex was edgy. It wasn’t a mainstream thing. But time was, cum shots were edgy. And there was a response to cum shots, and then every porno had cum shots, and now there’s bukkake. Same with anal sex. Big shock when it was first shown, and now anal sex is in every movie. The audience takes that on and then says, what’s next? What’s new? So all this stuff, that was hidden away for years, is mainstream now. You know what else? There was a movie in England last year, an arty movie, based on a literary kind of novel. And it has blowjobs. The actress – and this was straight actors and actresses, not adult performers – had to suck the actor off on camera. Porno’s already crossed over, man. We’re mainstream American shit now. If people out there want to worry about something, tell them to worry about what comes next. Worry about what comes after us.”

[Link]