Hahaha... dang, dude. But yeah, that might be the future of porn.
Although, we may end up watching movies like that in front of our TVs (except without the white stuff everywhere).
I mean, if we already have individual mobile phones, we may very well end up with individual Oculus Rift-like devices for watching TV, using computers, etc.
Google Glass is a similar idea, but for a person to be "on the go" whilst using the device. When we watch TV (or porn), normally we aren't moving from place to place. Which is why something like the Oculus Rift could (one day, maybe) replace big-screen TVs, and possibly computer monitors as well.
Although, if we look back historically at how long it took before mobile phones became mainstream and effectively replaced landline phones (since their introduction in the late 1980s until their rise to popularity in the mid-2000s), it might a similarly long amount of time before we see the Oculus Rift reach market saturation. Obviously, in some places we'll still have big screen TVs, like sports bars, or when gathering friends.
But I think we'll eventually start seeing Virtual Reality become a new form of media, much like how "audio" and "video" files have. And, if you consider how large a BluRay disc is, and how large a videogame is, the size difference is huge. However, with computing power rising, 3D graphics and advanced physics progressing, we might see dynamically rendered 3D movies soon.
If we consider the realism of the demos shown at E3, we saw images that looked like real, live human beings. And their movements were synchronized with their voice, their expressions were very much life-like. Considering that, we might end up in a future where it'll be easier to transfer a game-like file on a disk to be generated in real-time (and can then be interacted with), like how computer games are installed today.
Obviously, we'd need something like a GTX 780 that could fit in a TV, for a much lower heat output and energy consumption, for a much lower price. However, consider this; imagine the graphics card available in mid-2003, and the graphics cards we have today in mid-2013. Consider how much games have evolved, not only in terms of graphics, but AI, storytelling, immersion, sound quality, etc. Then, imagine what will happen in the next 10 years.
We'll see some great things in the future. Obviously, there will be obstacles. Like, what will keep a user from getting a friend's picture on the internet, and creating a 3D version of his friend, which he can then use to create lifelike videos for whatever purpose? This could generate huge fraud (it could be used for identity theft, for example), it could be used to provoke nations (by creating fake versions of their leaders, saying inappropriate things), be used for political manipulation, etc. There are huge impacts on what increased computing performance could cause. Which is why it's very important that legislation keep up with the technology.
I feel that virtual reality is something we're barely beginning to explore. What we'll do next... who knows?