Ok, have to admit that anal is getting more common. But on the count of other more specialized stuff, like ass fisting, enemas, golden showers, I think it comes down to personal taste. I don't think that any of these forementioned sexual activities will grow outrageously in popularity, but those who do like it will have an easier supply of their favourite porn material. We are gathered here at RB's for 1 main reason: there's lots of the more extreme kind of anal and vaginal to be found here. This is what we look for, this is what we search for. Judging form the majority of sites depicting nudity and explicit sex, I guess the major part of users of online erotica are still largely looking for vanilla and not extreme. Diversification will be the standard, both from the demand and supply side. Fisting sex will be a genre with it's own stars, just as there will be golden shower queens. Just look at car manufacturers today: those brands that build cars for the masses are struggling to keep alive (Ford, GM, Fiat,...) and others that are more 'individual' are very successull (BMW, Alfa Romeo, Lexus,...). These specialisations won't be limited to extreme stuff, though, they will appear at any level of adult entertainment. What's your fetish? I like transsexual German dwarves who have sex with latex-clad Shetland pony's with at least two limbs amputated... No problem, you'll get what you wan't coz supply responds to demand. If a European or American girl won't do a certain trick, they'll find an Asian girl who is willing to do it. And when the European or American girls see that the Asian girls make money with it, they'll follow. Porn is subject to the laws of free market economy just as any other consumer product. And money buys everything.